BC 2000 - breast cancer - analysis details: endpoints, steering files and strata

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Contents List

BC 2000 run-time diktats

List of BC 2000 endpoints

Endpoint Mnemonic Trial inclusion criteria
1  MORTALITY  DD 
2  RECURRENCE-FREE SURVIVAL  RL  recurrence 
3  BREAST CANCER MORTALITY (not used) DDBC 
4  DISTANT RECURRENCE  DIST  recurrence, site 
5  MORTALITY FROM SECOND PRIMARY CANCER  DDPP  death cause 
6  MORTALITY FROM UNKNOWN CAUSES WITHOUT RECORDED RECURRENCE  DDUKRL 
7  MORTALITY FROM OTHER AND UNSPECIFIED NON-BREAST-CANCER CAUSES  NONBCUS  death cause 
8  CARDIAC MORTALITY  HEART  death cause 
9  MORTALITY FROM NON-BREAST-CANCER, NON-VASCULAR CAUSES  NONBCVASC  death cause 
10  MORTALITY FROM LYMPHATIC AND HAEMATOPOIETIC CAUSES  DDLEUK  death cause 
11  ENDOMETRIAL CANCER MORTALITY  DDENDO  death cause 
12  MORTALITY FROM KNOWN NON-BREAST-CANCER CAUSES WITHOUT RECURRENCE  NONBC  death cause 
13  VASCULAR MORTALITY  VASC  death cause 
14  CONTRALATERAL BREAST CANCER AS FIRST EVENT  CONT  contralateral 
15  ISOLATED LOCAL RECURRENCE AS FIRST EVENT  RLLI  recurrence, site 
16  DISTANT RECURRENCE AS FIRST EVENT  RLD  recurrence, site 
17  RECURRENCE RLF  recurrence 
18  MORTALITY OMITTING DEATHS FROM NON-BREAST-CANCER CAUSES WITHOUT RECURRENCE = (DD - NONBC) DDPOSTREC 
19  RECURRENCE AT UNKNOWN SITE AS FIRST EVENT  RLU  recurrence 
20  RECURRENCE OMITTING ISOLATED LOCAL RECURRENCES AS FIRST EVENT = (RLF - RLLI) RLNL  recurrence, site 
21  MORTALITY AFTER ISOLATED LOCAL RECURRENCE AS FIRST EVENT DDLI  recurrence, site 
22  COLORECTAL CANCER MORTALITY  DDCOLO  death cause 
23  ENDOMETRIAL CANCER INCIDENCE  ENDO  second malignancy 
24  COLORECTAL CANCER INCIDENCE COLO  second malignancy 
25  SECOND PRIMARY CANCER INCIDENCE  PP second malignancy 
26  NON-CONTRALATERAL RECURRENCE AS FIRST EVENT  RLFNC  recurrence 
27  RECURRENCE OMITTING NON-CONTRALATERAL AS FIRST EVENT = (RLF - RLFNC) RLCONT  recurrence, contralateral 
28  CEREBROVASCULAR MORTALITY  CEREB  death cause 
29  OVARIAN CANCER MORTALITY  DDOVAR  death cause 
30  THROMBOTIC AND EMBOLIC MORTALITY  DDTHEMB  death cause 
31  PULMONARY EMBOLISM MORTALITY  DDPE  death cause 
32  MORTALITY FROM EXTRANEOUS CAUSES  EXTRA  death cause 
33  MORTALITY FROM KNOWN-SITE NON-ENDOMETRIAL SECOND PRIMARY CANCER  DDPPNE  death cause 
34  MORTALITY FROM UNKNOWN-SITE CANCER  DDPPU  death cause 
35  MORTALITY FROM IATROGENIC CAUSES  IATRO  death cause 
36  PNEUMONIA MORTALITY  PNEUM  death cause 
37  MORTALITY FROM UNSTATED CAUSES  DC0   
38  MORTALITY FROM OTHER SPECIFIED CAUSES  DC9 death cause 
39  MORTALITY FROM UNSPECIFIED NON-BREAST-CANCER CAUSES  DC10  death cause 
40  MORTALITY FROM UNASCERTAINABLE CAUSES  DC12  death cause 
41  MORTALITY FROM NON-PNEUMONIA RESPIRATORY CAUSES  DDRESP  death cause 
42  MORTALITY FROM NON-CANCER HEPATIC CAUSES  DDHEP  death cause 
43  MORTALITY FROM NON-PNEUMONIA INFECTIVE CAUSES  INFECTNP  death cause 
44  MORTALITY FROM OTHER VASCULAR CAUSES  OVASC  death cause 
45  OVARIAN CANCER INCIDENCE  OVAR  second malignancy 
46  HEPATIC CANCER INCIDENCE  HEP  second malignancy 
47  MORTALITY FROM HEPATIC CANCER  DDHEPC  death cause 
48  MORTALITY FROM KNOWN NON-BREAST-CANCER CAUSES WITHOUT RECURRENCE, EXCLUDING ENDOMETRIAL CANCER  NONBCENDO  death cause 
49  SECOND PRIMARY CANCER INCIDENCE AT KNOWN SITE  PPK  second malignancy 
50  SECOND PRIMARY CANCER INCIDENCE AT UNKNOWN SITE  PPUK  second malignancy 
51  LUNG CANCER INCIDENCE  LUNG  second malignancy 
52 LEUKAEMIA AND LYMPHOMA INCIDENCE  LEUK  second malignancy
53  MORTALITY WITHOUT RECURRENCE  NONBCUK 
54  MORTALITY WITH RECURRENCE (LOGRANK-SUBTRACTED) = (DD - NONBCUK) DDPOSTRECB 
55  MORTALITY OMITTING DEATHS FROM NON-BREAST-CANCER CAUSES (EXCLUDING ENDOMETRIAL CANCER) WITHOUT RECURRENCE = (DD - NONBCENDO) DDPOSTRECC 
56 SURVIVAL AFTER RECURRENCE DDRL recurrence
57 ISOLATED IPSILATERAL LOCAL RECURRENCE AS FIRST EVENT RLILI recurrence, site
58 MORTALITY FROM ACUTE MYELOID LEUKAEMIA DDAML death cause
59 ACUTE MYELOID LEUKAEMIA INCIDENCE AML second malignancy
60 UTERINE CANCER AS FIRST EVENT UTER1 second malignancy
61 UTERINE CANCER MORTALITY DDUTER death cause
62 LEUKAEMIA OR LYMPHOMA AS FIRST EVENT LEUK1 second malignancy
63 COLORECTAL CANCER AS FIRST EVENT COLO1 second malignancy
64 LUNG CANCER AS FIRST EVENT LUNG1 second malignancy
65 HEPATIC CANCER AS FIRST EVENT HEPC1 second malignancy
66 OVARIAN CANCER AS FIRST EVENT OVAR1 second malignancy
67 SECOND PRIMARY CANCER AS FIRST EVENT PP1 second malignancy
68 CONTRALATERAL BREAST OR SECOND PRIMARY CANCER AS FIRST EVENT PPCONT1 second malignancy, contralateral
69 LUNG CANCER MORTALITY DDLUNG death cause
70 NON-UTERINE SECOND CANCER AS FIRST EVENT NONUPP1 second malignancy

List of BC 2000 non-breast second malignancies

Value Description ICD-7 ICD-8 ICD-9 ICD-10
-1 Further decision required 162
204
206-207
422
795
Excluding:
162.x
204.x		 182
197
205-207
275
Excluding:
182.x
197.x
205.x-207.x
275.x		 155
205-208
273
275
279
Excluding:
155.x
205.x-208.x
273.x		 C22
C92-C95
O88
Excluding:
C22.x
C92.x-C95.x
1 Endometrial 172 182
Excluding:
182.9		 182 C54
2 Colorectal 153-154 153-154 153-154 C18-C21
3 Ovarian 175 183 183 C56-C57
4 Primary liver 155 155 155.0-155.1 C22
Excluding:
C22.9
5 Lung 162
Excluding:
162.2		 162 162 C33-C34
6 AML (definite / probable / possible) 204.2-204.4 205-207
Excluding:
205.1
206.1
207.1		 205-208
Excluding:
205.1
206.1
207.1
208.1		 C92-C95
Excluding:
C92.1
C93.1
C94.1
C95.1
7 Lymphatic and haematopoietic, non-AML 200-203
204.0-204.1
205		 200-204
205.1
206.1
207.1
275.5		 200-204
205.1
206.1
207.1
208.1
273.3		 C81-C91
C92.1
C93.1
C94.1
C95.1
C96
8 Gastric 151 151 151 C16
9 Other second malignancy, site specified 140-197
Excluding:
151
153-156
162 (except 162.2)
170
172
175
191		 140-194
Excluding:
151
153-155
162
173-174
182 (except 182.9)
183		 140-194
Excluding:
151
153-155
162
173-174
182-183		 C00-C75
C97
Excluding:
C16
C18-C22
C33-C34
C44
C50
C54
C56-C57
10 Second malignancy 140-205
Excluding:
170
191		 140-207
Excluding:
173-174		 140-208
273.3
Excluding:
173-174		 C00-C97
Excluding:
C44
C50
11 Second malignancy, site specified 140-197
200-205
Excluding:
156
170
191		 140-194
197.8
200-207
Excluding:
173-174		 140-194
200-208
273.3
Excluding:
173-174		 C00-C75
C81-C97
Excluding:
C44
C50
12 Second malignancy, site unspecified 156
198-199		 195-199
Excluding:
197.8		 195-199 C76-C80
13 Uterine, part unspecified 174 182.9 179 C55
14 Liver, unspecified - 197.8 155.2 C22.9

BC 2000 endpoint definitions (should be read in conjunction with Diktats)

PLEASE NOTE THAT THIS ENTIRE SECTION IS OUT OF DATE AND IS AWAITING A COMPLETE RE-WRITE!!!

Run-time strategy for data errors

Although efforts are made to create and maintain an 'error-free' database, numerous minor logical inconsistencies may persist during correspondence with trialists. In addition to the Diktats concerning missing dates etc, the following precepts are applied globally at run-time:

CONT: CONTRALATERAL BREAST CANCER AS FIRST EVENT

An event is taken to have occurred if: The event date is taken as the date of contralateral breast cancer.

If an event is not taken to have occurred, the case is censored at the randomisation date if the date of contralateral breast cancer is on or before the randomisation date, or else at THE EARLIEST OF the date died or last traced, the date of first recurrence (if non-null) and the date of first distant recurrence (if non-null).

DD: MORTALITY

An event is taken to have occurred if: The event date is taken as the date died.

If an event is not taken to have occurred, the case is censored at the date last traced.

DDPOSTREC: MORTALITY OMITTING DEATHS FROM NON-BREAST-CANCER CAUSES WITHOUT RECURRENCE

This endpoint is formed by subtraction of the annual events, (O - E) and variance of NONBC from DD, q.v.

DDUKRL: MORTALITY FROM UNKNOWN CAUSES WITHOUT RECORDED RECURRENCE

An event is taken to have occurred if: The event date is taken as the date died.

If an event is not taken to have occurred, the case is censored at the earliest of the date last traced, the date of first recurrence (if non-null), the date of first distant recurrence (if non-null) and the date of contralateral breast cancer (if non-null).

DIST: DISTANT RECURRENCE

An event is taken to have occurred if: The event date is taken as the date of first distant recurrence (if any) or else the date died (if dead without recurrence) OR ELSE THE DATE DIED OR LAST TRACED (IF THE DATES OF BOTH FIRST RECURRENCE AND FIRST DISTANT RECURRENCE ARE UNKNOWN).

If an event is not taken to have occurred, the case is censored at the earliest of the date died or last traced, the date of contralateral breast cancer (if non-null) and, if death has occurred from 'unknown' or unstated cause, the date of first recurrence (if non-null).

DDENDO: ENDOMETRIAL CANCER MORTALITY

An event is taken to have occurred if: The event date is taken as the date died.

If an event is not taken to have occurred, the case is censored at the earliest of the date last traced, the date of first recurrence (if non-null), the date of first distant recurrence (if non-null) and the date of contralateral breast cancer (if non-null).

HEART: CARDIAC MORTALITY

An event is taken to have occurred if: The event date is taken as the date died.

If an event is not taken to have occurred, the case is censored at the earliest of the date last traced, the date of first recurrence (if non-null), the date of first distant recurrence (if non-null) and the date of contralateral breast cancer (if non-null).

LEUK: MORTALITY FROM LYMPHATIC AND HAEMATOPOIETIC CAUSES

An event is taken to have occurred if: death has occurred; and the cause of death is 'lymphatic and haematopoietic'; and a recurrence is not reported; and contralateral breast cancer is not reported. The event date is taken as the date died. If an event is not taken to have occurred, the case is censored at the earliest of the date last traced, the date of first recurrence (if non-null), the date of first distant recurrence (if non-null) and the date of contralateral breast cancer (if non-null).

NONBC: MORTALITY FROM NON-BREAST-CANCER CAUSES WITHOUT RECURRENCE

An event is taken to have occurred if: The event date is taken as the date died.

If an event is not taken to have occurred, the case is censored at the earliest of the date last traced, the date of first recurrence (if non-null), the date of first distant recurrence (if non-null) and the date of contralateral breast cancer (if non-null).

NONBCUK: MORTALITY FROM UNKNOWN NON-BREAST-CANCER CAUSES

An event is taken to have occurred if: death has occurred; and the cause of death is 'not 1-8 and not breast cancer' or 'not breast cancer'; and a recurrence is not reported; and contralateral breast cancer is not reported. The event date is taken as the date died. If an event is not taken to have occurred, the case is censored at the earliest of the date last traced, the date of first recurrence (if non-null), the date of first distant recurrence (if non-null) and the date of contralateral breast cancer (if non-null).

NONBCVASC: MORTALITY FROM NON-BREAST-CANCER, NON-VASCULAR CAUSES

An event is taken to have occurred if: The event date is taken as the date died.

If an event is not taken to have occurred, the case is censored at the earliest of the date last traced, the date of first recurrence (if non-null), the date of first distant recurrence (if non-null) and the date of contralateral breast cancer (if non-null).

DDPP: MORTALITY FROM SECOND PRIMARY CANCER

An event is taken to have occurred if: The event date is taken as the date died.

If an event is not taken to have occurred, the case is censored at the earliest of the date last traced, the date of first recurrence (if non-null), the date of first distant recurrence (if non-null) and the date of contralateral breast cancer (if non-null).

RL: RECURRENCE-FREE SURVIVAL

An event is taken to have occurred if: The event date is taken as the earliest value of the date died (if dead), the date of first recurrence (if non-null) and the date of contralateral breast cancer (if non-null).

If an event is not taken to have occurred, the case is censored at the date last traced.

RLD: DISTANT RECURRENCE AS FIRST EVENT

An event is taken to have occurred if: The event date is taken as the date of first distant recurrence (if non-null) or else the date died (if dead from 'breast cancer' without recurrence) OR ELSE THE DATE DIED OR LAST TRACED (IF THE DATES OF FIRST RECURRENCE AND FIRST DISTANT RECURRENCE ARE BOTH UNKNOWN).

If an event is not taken to have occurred, the case is censored at the earliest of the date of first recurrence (if recurrence is present), the date died or last traced and the date of contralateral breast cancer (if non-null).

RLF: RECURRENCE AS FIRST EVENT

An event is taken to have occurred if: The event date is taken as the date of first recurrence (if non-null) or else the date died (if dead from 'breast cancer' without recurrence) OR ELSE THE DATE DIED OR LAST TRACED (IF THE DATES OF BOTH FIRST RECURRENCE AND FIRST DISTANT RECURRENCE ARE UNKNOWN).

If an event is not taken to have occurred, the case is censored at the earlier of the date died or last traced and the date of contralateral breast cancer (if non-null).

RLLI: ISOLATED LOCAL RECURRENCE AS FIRST EVENT

An event is taken to have occurred if: The event date is taken as the date of first recurrence.

If an event is not taken to have occurred, the case is censored at the earliest of the date of first recurrence (if recurrence is present), the date died or last traced and the date of contralateral breast cancer (if non-null).

RLNL: RECURRENCE AS FIRST EVENT OMITTING ISOLATED LOCAL RECURRENCES AS FIRST EVENT

This endpoint is formed by subtraction of the annual events, (O - E) and variance of RLLI from RLF, q.v.

RLU: RECURRENCE AT UNKNOWN SITE AS FIRST EVENT

An event is taken to have occurred if: The event date is taken as the date of first recurrence (if non-null) or else the date died (if dead from 'breast cancer' without recurrence).

If an event is not taken to have occurred, the case is censored at the earliest of the date died or last traced, the date of first recurrence (if non-null) and the date of contralateral breast cancer (if non-null).

VASC: VASCULAR MORTALITY

An event is taken to have occurred if: The event date is taken as the date died.

If an event is not taken to have occurred, the case is censored at the earliest of the date last traced, the date of first recurrence (if non-null), the date of first distant recurrence (if non-null) and the date of contralateral breast cancer (if non-null).

List of BC 2000 strata

Stratification Mnemonic Structure
0  Unstratified  0 
1  Entry Age  50 
Stratum Abbreviation
1  Entry age less than 50  Age < 50 
2  Entry age 50 or more  Age 50+ 
 
2  Entry Age  A 
Stratum Abbreviation
1  Entry age less than 40  Age < 40 
2  Entry age 40 - 49  Age 40 - 49
3  Entry age 50 - 59  Age 50 - 59 
4 Entry age 60 - 69  Age 60 - 69
5  Entry age 70 or more  Age 70+ 
6  Entry age unknown  Age unknown 
 
Regrouping 8 of Entry Age  -3 
Stratum Abbreviation
1  Entry age less than 40  Age < 40 
2  Entry age 40 - 49  Age 40 - 49 
3  Entry age 50 - 59  Age 50 - 59 
4  Entry age 60 or more  Age 60+ 
5  Entry age unknown  Age unknown 
 
Regrouping 29 of Entry Age  -4 
Stratum Abbreviation
1  Entry age less than 50  Age < 50 
2  Entry age 50 - 59  Age 50 - 59 
3  Entry age 60 or more  Age 60+ 
4  Entry age unknown  Age unknown 
 
Regrouping 42 of Entry Age -5
Stratum Abbreviation
1 Entry age less than 50 Age < 50
2 Entry age 50 - 69 Age 50 - 69
3 Entry age 70 or more Age 70+
4 Entry age unknown Age unknown
 
Regrouping 48 of Entry Age -6
Stratum Abbreviation
1 Entry age less than 50 Age < 50
2 Entry age 50 - 59 Age 50 - 59
3 Entry age 60 - 69 Age 60 - 69
4 Entry age 70 or more Age 70+
5 Entry age unknown Age unknown
 
3  Nodal Status  N 
Stratum Abbreviation
1  N0, entry age less than 50  N0 < 50 
2  N-, entry age less than 50  N- < 50 
3  N1-3, entry age less than 50  N1-3 < 50 
4  N4+, entry age less than 50  N4+ < 50 
5  'Other' nodal status, entry age less than 50 N+/N? < 50 
6  N0, entry age 50 or more  N0 50+ 
7 N-, entry age 50 or more  N- 50+ 
8  N1-3, entry age 50 or more  N1-3 50+ 
9  N4+, entry age 50 or more  N4+ 50+ 
10  'Other' nodal status, entry age 50 or more  N+/N? 50+ 
 
Regrouping 1 of Nodal Status  -1 
Stratum Abbreviation
1  N0  N0 
2  N-  N- 
3  N1-3  N1-3 
4  N4+  N4+ 
5  'Other' nodal status  N+/N? 
 
Regrouping 2 of Nodal Status  -2 
Stratum Abbreviation
1 N0/N-  N0/N- 
2  N1-3  N1-3 
3  N+/N?  N+/N? 
4  N4+  N4+ 
 
Regrouping 3 of Nodal Status  -5 
Stratum Abbreviation
1  N0/N-, entry age less than 50  N0/N- <50 
2  N+, entry age less than 50 N+/N? <50 
3  N0/N-, entry age 50 or more  N0/N- 50+ 
4  N+, entry age 50 or more  N+/N? 50+ 
 
4  E.R. Status  E 
Stratum Abbreviation
1  ER-poor, entry age less than 50  ERpoor < 50 
2  ER unknown, entry age less than 50  ER? < 50 
3  ER+, entry age less than 50  ER+ < 50 
4  ER++, entry age less than 50  ER++ < 50 
5  ER-poor, entry age 50 or more  ERpoor 50+ 
6  ER unknown, entry age 50 or more  ER? 50+ 
7  ER+, entry age 50 or more  ER+ 50+ 
8  ER++, entry age 50 or more  ER++ 50+ 
 
Regrouping 4 of E.R. Status  -1 
Stratum Abbreviation
1  ER-poor  ERpoor 
2  ER unknown  ER? 
3 ER+  ER+ 
4  ER++  ER++ 
 
Regrouping 5 of E.R. Status  -4 
Stratum Abbreviation
1  ER-poor, entry age less than 50  ERpoor <50 
2  ER unknown, entry age less than 50  ER? <50 
3  ER+, entry age less than 50  ER+ <50 
4  ER-poor, entry age 50 or more  ERpoor 50+ 
5  ER unknown, entry age 50 or more  ER? 50+ 
6  ER+, entry age 50 or more  ER+ 50+ 
 
Regrouping 12 of E.R. Status  -2 
Stratum Abbreviation
1  ER-poor  ERpoor 
2  ER unknown  ER? 
3  ER+  ER+ 
 
Regrouping 14 of E.R. Status  -3 
Stratum Abbreviation
1  ER-poor, entry age less than 50  ERpoor <50 
2  ER+/unknown, entry age less than 50  ER+/? <50 
3  ER-poor, entry age 50 or more  ERpoor 50+ 
4  ER+/unknown, entry age 50 or more  ER+/? 50+ 
 
Regrouping 15 of E.R. Status  -3 
Stratum Abbreviation
1  ER-poor  ERpoor 
2  ER+/unknown  ER+/? 
 
5  P.R. Status  P 
Stratum Abbreviation
1  PR-poor, entry age less than 50  PRpoor < 50 
2  PR unknown, entry age less than 50 PR? < 50 
3  PR+, entry age less than 50  PR+ < 50 
4  PR++, entry age less than 50  PR++ < 50 
5  PR-poor, entry age 50 or more  PRpoor 50+ 
6  PR unknown, entry age 50 or more  PR? 50+ 
7  PR+, entry age 50 or more PR+ 50+ 
8  PR++, entry age 50 or more  PR++ 50+ 
 
Regrouping 6 of P.R. Status  -1 
Stratum Abbreviation
1  PR-poor  PRpoor 
2  PR unknown  PR? 
3  PR+  PR+ 
4  PR++  PR++
 
Regrouping 7 of P.R. Status  -4
Stratum Abbreviation
1  PR-poor, entry age less than 50  PRpoor <50 
2  PR unknown, entry age less than 50  PR? <50 
3  PR+, entry age less than 50  PR+ <50 
4 PR-poor, entry age 50 or more  PRpoor 50+ 
5  PR unknown, entry age 50 or more  PR? 50+ 
6  PR+, entry age 50 or more  PR+ 50+ 
 
Regrouping 13 of P.R. Status  -2 
Stratum Abbreviation
1  PR-poor  PRpoor 
2 PR unknown  PR? 
3 PR+ PR+ 
 
Regrouping 16 of P.R. Status  -3 
Stratum Abbreviation
1  PR-poor, entry age less than 50  PRpoor <50 
2  PR+/unknown, entry age less than 50  PR+/? <50 
3  PR-poor, entry age 50 or more PRpoor 50+ 
4  PR+/unknown, entry age 50 or more  PR+/? 50+ 
 
Regrouping 17 of P.R. Status  -5 
Stratum Abbreviation
1  PR-poor  PRpoor 
2  PR+/unknown  PR+/? 
 
6  Entry Age and Menop. Status  M 
Stratum Abbreviation
1  Pre- and perimenopausal, entry age less than 50  Pre/Peri < 50 
2  Postmenopausal, entry age less than 50  Post < 50 
3  Pre- and perimenopausal, entry age 50 - 59  Pre/Peri 50-59 
4  Postmenopausal, entry age 50 - 59  Post 50-59 
5  All menopausal status, entry age 60 - 69  All 60-69
6  All menopausal status, entry age 70 or more  All 70+ 
 
Regrouping 31 of Entry Age and Menop. Status  -4 
Stratum Abbreviation
1  Pre- and perimenopausal, entry age less than 50  Pre/Peri < 50 
2 Postmenopausal, entry age less than 50  Post < 50 
3  Pre- and perimenopausal, entry age 50 - 59  Pre/Peri 50-59 
4  Postmenopausal, entry age 50 - 59  Post 50-59 
5  All menopausal status, entry age 60 or more  All 60+ 
 
7  Nodal Status  NN 
Stratum Abbreviation
1  N0 clearance, entry age less than 50  N0 clear < 50 
2  N+ clearance, entry age less than 50  N+ clear < 50 
3  N- sampling/clinical, entry age less than 50  N- sam/clin <50 
4  N+ sampling/clinical, entry age less than 50  N+ sam/clin <50 
5  N unknown, entry age less than 50  N? < 50 
6  N0 clearance, entry age 50 or more  N0 clear 50+ 
7  N+ clearance, entry age 50 or more  N+ clear 50+ 
8  N- sampling/clinical, entry age 50 or more  N- sam/clin 50+ 
9  N+ sampling/clinical, entry age 50 or more  N+ sam/clin 50+ 
10  N unknown, entry age 50 or more  N? 50+
 
Regrouping 10 of Nodal Status  -1 
Stratum Abbreviation
1  N0 clearance  N0 clearance 
2  N+ clearance  N+ clearance 
3  N- sampling/clinical N- sample/clin. 
4  N+ sampling/clinical  N+ sample/clin.
5  N unknown  N unknown 
 
8  Entry Age and Nodal Status  AN 
Stratum Abbreviation
1  Entry age less than 40, N0/N-  < 40, N0/N- 
2  Entry age 40 - 49, N0/N-  40 - 49, N0/N- 
3  Entry age 50 - 59, N0/N-  50 - 59, N0/N- 
4  Entry age 60 - 69, N0/N-  60 - 69, N0/N- 
5  Entry age 70+, N0/N-  70+, N0/N- 
6  Entry age less than 40, N+/N?  < 40, N+/N? 
7  Entry age 40 - 49, N+/N?  40 - 49, N+/N? 
8  Entry age 50 - 59, N+/N?  50 - 59, N+/N? 
9 Entry age 60 - 69, N+/N?  60 - 69, N+/N? 
10  Entry age 70+, N+/N?  70+, N+/N? 
 
Regrouping 37 of Entry Age and Nodal Status  -2 
Stratum Abbreviation
1  Entry age less than 40, N0/N-  < 40, N0/N- 
2  Entry age 40 - 49, N0/N-  40 - 49, N0/N- 
3  Entry age 50 - 59, N0/N-  50 - 59, N0/N- 
4 Entry age 60+, N0/N-  60+, N0/N- 
5  Entry age less than 40, N+/N?  < 40, N+/N? 
6  Entry age 40 - 49, N+/N?  40 - 49, N+/N? 
7  Entry age 50 - 59, N+/N?  50 - 59, N+/N? 
8  Entry age 60+, N+/N?  60+, N+/N? 
 
Regrouping 36 of Entry Age and Nodal Status  -3 
Stratum Abbreviation
1  Entry age less than 50, N0/N-  < 50, N0/N- 
2 Entry age 50 - 59, N0/N-  50 - 59, N0/N- 
3  Entry age 60 - 69, N0/N-  60 - 69, N0/N- 
4  Entry age 70+, N0/N-  70+, N0/N- 
5  Entry age less than 50, N+/N?  < 50, N+/N? 
6  Entry age 50 - 59, N+/N?  50 - 59, N+/N? 
7  Entry age 60 - 69, N+/N?  60 - 69, N+/N? 
8  Entry age 70+, N+/N?  70+, N+/N? 
 
Regrouping 30 of Entry Age and Nodal Status  -4 
Stratum Abbreviation
1  Entry age less than 50, N0/N-  < 50, N0/N-
2  Entry age 50 - 59, N0/N-  50 - 59, N0/N- 
3  Entry age 60+, N0/N-  60+, N0/N- 
4  Entry age less than 50, N+/N?  < 50, N+/N? 
5  Entry age 50 - 59, N+/N?  50 - 59, N+/N? 
6  Entry age 60+, N+/N?  60+, N+/N? 
 
Regrouping 11 of Entry Age and Nodal Status  -5 
Stratum Abbreviation
1  N0/N-  N0/N- 
2  N+/N?  N+/N? 
 
Regrouping 39 of Entry Age and Nodal Status -6
Stratum Abbreviation
1 Entry age less than 50, N0/N- < 50, N0/N-
2 Entry age 50 - 69, N0/N- 50 - 69, N0/N-
3 Entry age 70+, N0/N- 70+, N0/N-
4 Entry age less than 50, N+/N? < 50, N+/N?
5 Entry age 50 - 69, N+/N? 50 - 69, N+/N?
6 Entry age 70+, N+/N? 70+, N+/N?
 
Regrouping 53 of Entry Age and Nodal Status -7
Stratum Abbreviation
1 Entry age less than 40 < 40
2 Entry age 40 - 49 40 - 49
3 Entry age 50 - 59 50 - 59
4 Entry age 60 - 69 60 - 69
5 Entry age 70 or more 70+
 
Regrouping 54 of Entry Age and Nodal Status -8
Stratum Abbreviation
1 Entry age less than 50 < 50
2 Entry age 50 - 69 50 - 69
3 Entry age 70 or more 70+
 
Regrouping 55 of Entry Age and Nodal Status -9
Stratum Abbreviation
1 Entry age less than 50 < 50
2 Entry age 50 - 59 50 - 59
3 Entry age 60 - 69 60 - 69
4 Entry age 70 or more 70+
 
9  Nodal Status (pathological overrides clinical where both available) PN 
Stratum Abbreviation
1  N0 clearance, entry age less than 50  N0 clear < 50 
2  N+ clearance, entry age less than 50  N+ clear < 50 
3  N- sampling/clinical, entry age less than 50  N- sample/clin <50
4  N+ sampling/clinical, entry age less than 50  N+ sample/clin <50 
5  N unknown, entry age less than 50  N? < 50
6  N0 clearance, entry age 50 or more  N0 clear 50+ 
7  N+ clearance, entry age 50 or more  N+ clear 50+ 
8  N- sampling/clinical, entry age 50 or more  N- sample/clin 50+
9  N+ sampling/clinical, entry age 50 or more  N+ sample/clin 50+ 
10  N unknown, entry age 50 or more  N? 50+ 
 
Regrouping 10 of Nodal Status  -1
Stratum Abbreviation
1  N0 clearance  N0 clearance
2  N+ clearance  N+ clearance 
3  N- sampling/clinical N- sample/clin.
4  N+ sampling/clinical  N+ sample/clin. 
5  N unknown  N unknown 
 
10  Nodal Status  N2 
Stratum Abbreviation
1  N0 clearance  N0 clearance 
2  N+ clearance  N+ clearance 
3  N- sampling  N- sampling 
4  N+ sampling  N+ sampling 
5  N- clinical  N- clinical 
6  N+ clinical  N+ clinical 
7  N- unk. method  N- unk. method 
8  N+ unk. method N+ unk. method
9  N unknown  N unknown 
 
11  Entry Age and Menop. Status  M2 
Stratum Abbreviation
1  All menopausal status, entry age less than 40  All < 40 
2  Pre- and perimenopausal, entry age 40 - 49  Pre/Peri 40-49 
3  Postmenopausal, entry age 40 - 49  Post 40-49 
4 Pre- and perimenopausal, entry age 50 - 59  Pre/Peri 50-59 
5  Postmenopausal, entry age 50 - 59  Post 50-59 
6  All menopausal status, entry age 60 - 69  All 60-69 
7  All menopausal status, entry age 70 or more  All 70+ 
 
12  Nodal and E.R. Status  NE 
Stratum Abbreviation
1  N0/N-, ER-poor, entry age less than 50  N0/N- ERpoor < 50 
2  N0/N-, ER unknown, entry age less than 50  N0/N- ER? < 50 
3  N0/N-, ER+, entry age less than 50  N0/N- ER+ < 50 
4  N+/N?, ER-poor, entry age less than 50  N+/N? ERpoor < 50 
5  N+/N?, ER unknown, entry age less than 50  N+/N? ER? < 50 
6  N+/N?, ER+, entry age less than 50  N+/N? ER+ < 50 
7  N0/N-, ER-poor, entry age 50 or more  N0/N- ERpoor 50+ 
8  N0/N-, ER unknown, entry age 50 or more  N0/N- ER? 50+
9 N0/N-, ER+, entry age 50 or more  N0/N- ER+ 50+ 
10  N+/N?, ER-poor, entry age 50 or more  N+/N? ERpoor 50+ 
11  N+/N?, ER unknown, entry age 50 or more  N+/N? ER? 50+ 
12  N+/N?, ER+, entry age 50 or more  N+/N? ER+ 50+ 
 
Regrouping 24 of Nodal and E.R. Status  -1
Stratum Abbreviation
1  N0/N-, ER-poor  N0/N- ERpoor 
2  N0/N-, ER unknown  N0/N- ER? 
3  N0/N-, ER+  N0/N- ER+ 
4  N+/N?, ER-poor  N+/N? ERpoor 
5  N+/N?, ER unknown  N+/N? ER? 
6  N+/N?, ER+  N+/N? ER+ 
 
Regrouping 20 of Nodal and E.R. Status  -3 
Stratum Abbreviation
1  N0/N-, ER-poor, entry age less than 50  N0/N- ERpoor < 50 
2  N0/N-, ER+/unknown, entry age less than 50  N0/N- ER+/? < 50 
3  N+/N?, ER-poor, entry age less than 50  N+/N? ERpoor < 50 
4  N+/N?, ER+/unknown, entry age less than 50  N+/N? ER+/? < 50 
5  N0/N-, ER-poor, entry age 50 or more N0/N- ERpoor 50+
6  N0/N-, ER+/unknown, entry age 50 or more  N0/N- ER+/? 50+ 
7  N+/N?, ER-poor, entry age 50 or more  N+/N? ERpoor 50+ 
8  N+/N?, ER+/unknown, entry age 50 or more  N+/N? ER+/? 50+ 
 
Regrouping 22 of Nodal and E.R. Status  -5 
Stratum Abbreviation
1  N0/N-, ER-poor  N0/N- ERpoor 
2  N0/N-, ER+/unknown  N0/N- ER+/? 
3  N+/N?, ER-poor  N+/N? ERpoor 
4  N+/N?, ER+/unknown  N+/N? ER+/? 
 
Regrouping 56 of Nodal and E.R. Status -6
Stratum Abbreviation
1  ER-poor, entry age less than 50 ERpoor, < 50
2  ER+/unknown, entry age less than 50 ER+/?, < 50
3  ER-poor, entry age 50 or more ERpoor, 50+
4  ER+/unknown, entry age 50 or more ER+/?, 50+
 
Regrouping 63 of Nodal and E.R. Status -7
Stratum Abbreviation
1 ER-poor, entry age less than 50 ERpoor, < 50
2  ER unknown, entry age less than 50 ER?, < 50
3 ER+, entry age less than 50 ER+, < 50
4  ER-poor, entry age 50 or more ERpoor, 50+
5 ER unknown, entry age 50 or more ER?, 50+
6 ER+, entry age 50 or more ER+, 50+
 
13  Nodal and P.R. Status  NP 
Stratum Abbreviation
1 N0/N-, PR-poor, entry age less than 50  N0/N- PRpoor < 50 
2  N0/N-, PR unknown, entry age less than 50  N0/N- PR? < 50 
3  N0/N-, PR+, entry age less than 50  N0/N? PR+ < 50
4  N+/N?, PR-poor, entry age less than 50  N+/N? PRpoor < 50 
5  N+/N?, PR unknown, entry age less than 50  N+/N? PR? < 50 
6  N+/N?, PR+, entry age less than 50  N+/N? PR+ < 50 
7 N0/N-, PR-poor, entry age 50 or more  N0/N- PRpoor 50+ 
8  N0/N-, PR unknown, entry age 50 or more  N0/N- PR? 50+ 
9  N0/N-, PR+, entry age 50 or more  N0/N- PR+ 50+ 
10  N+/N?, PR-poor, entry age 50 or more  N+/N? PRpoor 50+ 
11  N+/N?, PR unknown, entry age 50 or more  N+/N? PR? 50+ 
12  N+/N?, PR+, entry age 50 or more  N+/N? PR+ 50+ 
 
Regrouping 25 of Nodal and P.R. Status  -1 
Stratum Abbreviation
1  N0/N-, PR-poor  N0/N- PRpoor 
2  N0/N-, PR unknown N0/N- PR? 
3  N0/N-, PR+  N0/N? PR+ 
4  N+/N?, PR-poor  N+/N? PRpoor 
5  N+/N?, PR unknown  N+/N? PR? 
6  N+/N?, PR+  N+/N? PR+ 
 
Regrouping 21 of Nodal and P.R. Status  -3 
Stratum Abbreviation
1  N0/N-, PR-poor, entry age less than 50  N0/N- PRpoor < 50 
2  N0/N-, PR+/unknown, entry age less than 50  N0/N- PR+/? < 50 
3  N+/N?, PR-poor, entry age less than 50  N+/N? PRpoor < 50 
4  N+/N?, PR+/unknown, entry age less than 50  N+/N? PR+/? < 50 
5  N0/N-, PR-poor, entry age 50 or more  N0/N- PRpoor 50+ 
6  N0/N-, PR+/unknown, entry age 50 or more  N0/N- PR+/? 50+
7  N+/N?, PR-poor, entry age 50 or more  N+/N? PRpoor 50+ 
8  N+/N?, PR+/unknown, entry age 50 or more  N+/N? PR+/? 50+ 
 
Regrouping 23 of Nodal and P.R. Status  -5
Stratum Abbreviation
1  N0/N-, PR-poor  N0/N- PRpoor 
2  N0/N-, PR+/unknown  N0/N- PR+/? 
3  N+/N?, PR-poor  N+/N? PRpoor 
4  N+/N?, PR+/unknown  N+/N? PR+/? 
 
14  Entry Age and E.R. Status  AE 
Stratum Abbreviation
1  Entry age less than 40, ER-poor  < 40, ERpoor 
2  Entry age 40 - 44, ER-poor  40 - 44, ERpoor 
3  Entry age 45 - 49, ER-poor  45 - 49, ERpoor 
4  Entry age 50 - 54, ER-poor  50 - 54, ERpoor 
5  Entry age 55 - 59, ER-poor  55 - 59, ERpoor 
6  Entry age 60 - 69, ER-poor  60 - 69, ERpoor 
7  Entry age 70 or more, ER-poor  70+, ERpoor 
8  Entry age less than 40, ER unknown  < 40, ER? 
9 Entry age 40 - 44, ER unknown  40 - 44, ER? 
10  Entry age 45 - 49, ER unknown  45 - 49, ER? 
11  Entry age 50 - 54, ER unknown  50 - 54, ER? 
12  Entry age 55 - 59, ER unknown  55 - 59, ER? 
13 Entry age 60 - 69, ER unknown  60 - 69, ER? 
14  Entry age 70 or more, ER unknown  70+, ER? 
15  Entry age less than 40, ER+  < 40, ER+ 
16  Entry age 40 - 44, ER+  40 - 44, ER+ 
17  Entry age 45 - 49, ER+  45 - 49, ER+ 
18  Entry age 50 - 54, ER+  50 - 54, ER+ 
19  Entry age 55 - 59, ER+  55 - 59, ER+ 
20  Entry age 60 - 69, ER+  60 - 69, ER+ 
21  Entry age 70 or more, ER+  70+, ER+ 
 
Regrouping 18 of Entry Age and E.R. Status  -2 
Stratum Abbreviation
1  Entry age less than 50, ER-poor  < 50, ERpoor 
2  Entry age 50 - 59, ER-poor  50 - 59, ERpoor 
3  Entry age 60 or more, ER-poor  60+, ERpoor
4  Entry age less than 50, ER unknown  < 50, ER? 
5  Entry age 50 - 59, ER unknown  50 - 59, ER? 
6  Entry age 60 or more, ER unknown  60+, ER? 
7 Entry age less than 50, ER+ < 50, ER+ 
8  Entry age 50 - 59, ER+  50 - 59, ER+ 
9  Entry age 60 or more, ER+  60+, ER+ 
 
Regrouping 19 of Entry Age and E.R. Status  -3 
Stratum Abbreviation
1  Entry age less than 40, ER-poor  < 40, ERpoor 
2  Entry age 40 - 44, ER-poor  40 - 44, ERpoor 
3  Entry age 45 - 49, ER-poor  45 - 49, ERpoor 
4  Entry age 50 - 54, ER-poor  50 - 54, ERpoor 
5  Entry age 55 - 59, ER-poor  55 - 59, ERpoor
6  Entry age 60 - 69, ER-poor  60 - 69, ERpoor 
7 Entry age 70 or more, ER-poor  70+, ERpoor 
8  Entry age less than 40, ER+/unknown  < 40, ER+/? 
9  Entry age 40 - 44, ER+/unknown  40 - 44, ER+/? 
10  Entry age 45 - 49, ER+/unknown  45 - 49, ER+/? 
11 Entry age 50 - 54, ER+/unknown  50 - 54, ER+/? 
12  Entry age 55 - 59, ER+/unknown  55 - 59, ER+/? 
13  Entry age 60 - 69, ER+/unknown  60 - 69, ER+/? 
14 Entry age 70 or more, ER+/unknown 70+, ER+/? 
 
Regrouping 32 of Entry Age and E.R. Status  -4 
Stratum Abbreviation
1  Entry age less than 50, ER-poor  < 50, ERpoor 
2  Entry age 50 - 59, ER-poor  50 - 59, ERpoor 
3  Entry age 60 - 69, ER-poor  60 - 69, ERpoor 
4  Entry age 70 or more, ER-poor  70+, ERpoor 
5  Entry age less than 50, ER+/unknown  < 50, ER+/? 
6  Entry age 50 - 59, ER+/unknown  50 - 59, ER+/? 
7  Entry age 60 - 69, ER+/unknown  60 - 69, ER+/? 
8  Entry age 70 or more, ER+/unknown  70+, ER+/? 
 
Regrouping 33 of Entry Age and E.R. Status  -5 
Stratum Abbreviation
1  Entry age less than 40, ER-poor  < 40, ERpoor 
2  Entry age 40 - 49, ER-poor  40 - 49, ERpoor 
3  Entry age 50 - 59, ER-poor  50 - 59, ERpoor 
4  Entry age 60 - 69, ER-poor  60 - 69, ERpoor 
5  Entry age 70 or more, ER-poor  70+, ERpoor 
6  Entry age less than 40, ER+/unknown  < 40, ER+/? 
7  Entry age 40 - 49, ER+/unknown  40 - 49, ER+/? 
8  Entry age 50 - 59, ER+/unknown  50 - 59, ER+/? 
9  Entry age 60 - 69, ER+/unknown  60 - 69, ER+/? 
10  Entry age 70 or more, ER+/unknown  70+, ER+/? 
 
Regrouping 34 of Entry Age and E.R. Status  -6 
Stratum Abbreviation
1  Entry age less than 50, ER-poor  < 50, ERpoor 
2  Entry age 50 - 59, ER-poor  50 - 59, ERpoor 
3  Entry age 60 - 69, ER-poor  60 - 69, ERpoor 
4  Entry age 70 or more, ER-poor  70+, ERpoor 
5 Entry age less than 50, ER unknown  < 50, ER? 
6  Entry age 50 - 59, ER unknown  50 - 59, ER? 
7  Entry age 60 - 69, ER unknown  60 - 69, ER? 
8  Entry age 70 or more, ER unknown  70+, ER? 
9  Entry age less than 50, ER+  < 50, ER+ 
10  Entry age 50 - 59, ER+  50 - 59, ER+
11  Entry age 60 - 69, ER+  60 - 69, ER+ 
12 Entry age 70 or more, ER+  70+, ER+ 
 
Regrouping 35 of Entry Age and E.R. Status  -7 
Stratum Abbreviation
1  Entry age less than 40, ER-poor  < 40, ERpoor 
2  Entry age 40 - 49, ER-poor  40 - 49, ERpoor 
3  Entry age 50 - 59, ER-poor  50 - 59, ERpoor 
4  Entry age 60 - 69, ER-poor  60 - 69, ERpoor 
5  Entry age 70 or more, ER-poor  70+, ERpoor 
6  Entry age less than 40, ER unknown  < 40, ER? 
7  Entry age 40 - 49, ER unknown  40 - 49, ER? 
8  Entry age 50 - 59, ER unknown  50 - 59, ER? 
9 Entry age 60 - 69, ER unknwon  60 - 69, ER? 
10  Entry age 70 or more, ER unknown  70+, ER? 
11  Entry age less than 40, ER+  < 40, ER+ 
12  Entry age 40 - 49, ER+  40 - 49, ER+ 
13  Entry age 50 - 59, ER+  50 - 59, ER+ 
14  Entry age 60 - 69, ER+  60 - 69, ER+ 
15  Entry age 70 or more, ER+  70+, ER+ 
 
15  E.R. and P.R. Status EP 
Stratum Abbreviation
1  ER-poor, PR-poor, entry age less than 50  ERpoor PRpoor < 50 
2  ER-poor, PR unknown, entry age less than 50  ERpoor PR? < 50 
3  ER-poor, PR+, entry age less than 50  ERpoor PR+ < 50 
4  ER unknown, PR-poor, entry age less than 50  ER? PRpoor < 50 
5  ER unknown, PR unknown, entry age less than 50  ER? PR? < 50 
6  ER unknown, PR+, entry age less than 50  ER? PR+ < 50 
7  ER+, PR-poor, entry age less than 50  ER+ PRpoor < 50 
8 ER+, PR unknown, entry age less than 50  ER+ PR? < 50 
9  ER+, PR+, entry age less than 50 ER+ PR+ < 50 
10  ER-poor, PR-poor, entry age 50 or more  ERpoor PRpoor 50+ 
11  ER-poor, PR unknown, entry age 50 or more  ERpoor PR? 50+ 
12  ER-poor, PR+, entry age 50 or more  ERpoor PR+ 50+ 
13  ER unknown, PR-poor, entry age 50 or more  ER? PRpoor 50+ 
14  ER unknown, PR unknown, entry age 50 or more  ER? PR? 50+ 
15  ER unknown, PR+, entry age 50 or more  ER? PR+ 50+ 
16  ER+, PR-poor, entry age 50 or more  ER+ PRpoor 50+ 
17  ER+, PR unknown, entry age 50 or more  ER+ PR? 50+ 
18  ER+, PR+, entry age 50 or more ER+ PR+ 50+ 
 
Regrouping 26 of E.R. and P.R. Status  -1 
Stratum Abbreviation
1  ER-poor, PR-poor  ERpoor PRpoor 
2  ER-poor, PR unknown  ERpoor PR? 
3  ER-poor, PR+  ERpoor PR+ 
4  ER unknown, PR-poor  ER? PRpoor 
5  ER unknown, PR unknown  ER? PR? 
6  ER unknown, PR+ ER? PR+ 
7  ER+, PR-poor ER+ PRpoor 
8  ER+, PR unknown  ER+ PR? 
9  ER+, PR+  ER+ PR+ 
 
Regrouping 27 of E.R. and P.R. Status  -5 
Stratum Abbreviation
1 ER-poor, PR-poor  ERpoor PRpoor 
2  ER-poor, PR+/unknown  ERpoor PR+/? 
3  ER+/unknown, PR-poor  ER+/? PRpoor 
4  ER+/unknown, PR+/unknown  ER+/? PR+/? 
 
16  E.R. and Menop. Status  EM 
Stratum Abbreviation
1  ER-poor, all menopausal status, entry age less than 40  ERpoor < 40 
2  ER-poor, pre- and perimenop., entry age 40 - 49  ERpoorPre/Peri 40-49 
3  ER-poor, postmenopausal, entry age 40 - 49  ERpoor Post 40-49 
4  ER-poor, pre- and perimenop., entry age 50 - 59  ERpoorPre/Peri 50-59 
5  ER-poor, postmenopausal, entry age 50 - 59  ERpoor Post 50-59 
6  ER-poor, all menopausal status, entry age 60 - 69  ERpoor 60-69 
7  ER-poor, all menop. status, entry age 70 or more  ERpoor 70+ 
8  ER+/unknown, all menop. status, entry less than 40  ER+/? < 40 
9  ER+/unkn., pre- and perimenop., entry age 40 - 49  ER+/? Pre/Peri 40-49 
10  ER+/unknown, postmenopausal, entry age 40 - 49  ER+/? Post 40-49 
11  ER+/unkn., pre- and perimenop., entry age 50 - 59  ER+/? Pre/Peri 50-59 
12  ER+/unknown, postmenopausal, entry age 50 - 59  ER+/? Post 50-59 
13  ER+/unknown, all menop. status, entry age 60 - 69 ER+/? 60-69 
14  ER+/unkn., all menop. status, entry age 70 or more  ER+/? 70+
 
17  Entry Age  A2 
Stratum Abbreviation
1  Entry age less than 40  Age < 40 
2  Entry age 40 - 44  Age 40 - 44 
3  Entry age 45 - 49 Age 45 - 49 
4  Entry age 50 - 54  Age 50 - 54 
5  Entry age 55 - 59  Age 55 - 59 
6  Entry age 60 - 69  Age 60 - 69 
7  Entry age 70 or more  Age 70+ 
8  Entry age unknown  Age unknown 
 
18  E.R. and Menop. Status  ME
Stratum Abbreviation
1 ER-poor, pre- and peri-, entry age less than 50  ERpoor Pre/Peri < 50 
2  ER-poor, postmenopausal, entry age less than 50  ERpoor Post < 50 
3  ER-poor, pre- and perimenop., entry age 50 - 59  ERpoorPre/Peri 50-59 
4 ER-poor, postmenopausal, entry age 50 - 59  ERpoor Post 50-59 
5  ER-poor, all menopausal status, entry age 60 - 69  ERpoor 60-69 
6 ER-poor, all menop. status, entry age 70 or more  ERpoor 70+ 
7  ER+/unkn., pre- and peri-, entry age less than 50  ER+/? Pre/Peri < 50 
8  ER+/unknown, postmenop., entry age less than 50  ER+/? Post < 50 
9  ER+/unkn., pre- and perimenop., entry age 50 - 59  ER+/? Pre/Peri 50-59 
10  ER+/unknown, postmenopausal, entry age 50 - 59  ER+/? Post 50-59 
11  ER+/unknown, all menop. status, entry age 60 - 69  ER+/? 60-69 
12  ER+/unkn., all menop. status, entry age 70 or more  ER+/? 70+ 
 
19  Nodal Status and Entry Age  NA 
Stratum Abbreviation
1  N0 clearance, entry age less than 40  N0 clear < 40 
2  N+ clearance, entry age less than 40  N+ clear < 40 
3  N- sampling/clinical, entry age less than 40  N- sam/clin < 40 
4  N+ sampling/clinical, entry age less than 40  N+ sam/clin < 40 
5  N unknown, entry age less than 40  N? < 40 
6  N0 clearance, entry age 40 - 49  N0 clear 40-49 
7  N+ clearance, entry age 40 - 49  N+ clear 40-49
8  N- sampling/clinical, entry age 40 - 49  N- sam/clin 40-49 
9  N+ sampling/clinical, entry age 40 - 49  N+ sam/clin 40-49 
10  N unknown, entry age 40 - 49  N? 40-49 
11  N0 clearance, entry age 50 - 59  N0 clear 50-59 
12  N+ clearance, entry age 50 - 59  N+ clear 50-59 
13  N- sampling/clinical, entry age 50 - 59  N- sam/clin 50-59 
14  N+ sampling/clinical, entry age 50 - 59  N+ sam/clin 50-59 
15  N unknown, entry age 50 - 59  N? 50-59 
16  N0 clearance, entry age 60 - 69  N0 clear 60-69 
17  N+ clearance, entry age 60 - 69 N+ clear 60-69 
18  N- sampling/clinical, entry age 60 - 69  N- sam/clin 60-69 
19  N+ sampling/clinical, entry age 60 - 69  N+ sam/clin 60-69 
20  N unknown, entry age 60 - 69  N? 60-69 
21  N0 clearance, entry age 70 or more  N0 clear 70+ 
22  N+ clearance, entry age 70 or more  N+ clear 70+
23  N- sampling/clinical, entry age 70 or more  N- sam/clin 70+ 
24 N+ sampling/clinical, entry age 70 or more  N+ sam/clin 70+
25  N unknown, entry age 70 or more  N? 70+
26  N0 clearance, entry age unknown  N0 clear Age ? 
27  N+ clearance, entry age unknown N+ clear Age ? 
28  N- sampling/clinical, entry age unknown  N- sam/clin Age ? 
29  N+ sampling/clinical, entry age unknown  N+ sam/clin Age ? 
30  N unknown, entry age unknown  N? Age ? 
 
20  Entry Age, Nodal & E.R. Status  ANE 
Stratum Abbreviation
1  N0/N-, ER-poor, entry age less than 50  N0/N- ERpoor < 50 
2  N0/N-, ER unknown, entry age less than 50  N0/N- ER? < 50 
3  N0/N-, ER+, entry age less than 50  N0/N- ER+ < 50 
4  N+/N?, ER-poor, entry age less than 50  N+/N? ERpoor < 50 
5  N+/N?, ER unknown, entry age less than 50  N+/N? ER? < 50 
6  N+/N?, ER+, entry age less than 50  N+/N? ER+ < 50 
7 N0/N-, ER-poor, entry age 50 - 59  N0/N- ERpoor 50-59 
8  N0/N-, ER unknown, entry age 50 - 59  N0/N- ER? 50-59 
9  N0/N-, ER+, entry age 50 - 59  N0/N- ER+ 50-59
10 N+/N?, ER-poor, entry age 50 - 59  N+/N? ERpoor 50-59 
11  N+/N?, ER unknown, entry age 50 - 59  N+/N? ER? 50-59 
12  N+/N?, ER+, entry age 50 - 59  N+/N? ER+ 50-59 
13  N0/N-, ER-poor, entry age 60 - 69  N0/N- ERpoor 60-69 
14  N0/N-, ER unknown, entry age 60 - 69  N0/N- ER? 60-69 
15  N0/N-, ER+, entry age 60 - 69  N0/N- ER+ 60-69 
16  N+/N?, ER-poor, entry age 60 - 69  N+/N? ERpoor 60-69 
17  N+/N?, ER unknown, entry age 60 - 69  N+/N? ER? 60-69 
18  N+/N?, ER+, entry age 60 - 69  N+/N? ER+ 60-69 
19  N0/N-, ER-poor, entry age 70 or more  N0/N- ERpoor 70+ 
20  N0/N-, ER unknown, entry age 70 or more  N0/N- ER? 70+ 
21  N0/N-, ER+, entry age 70 or more  N0/N- ER+ 70+ 
22  N+/N?, ER-poor, entry age 70 or more  N+/N? ERpoor 70+ 
23  N+/N?, ER unknown, entry age 70 or more N+/N? ER? 70+ 
24  N+/N?, ER+, entry age 70 or more  N+/N? ER+ 70+ 
 
Regrouping 38 of Entry Age, Nodal & E.R. Status -3 
Stratum Abbreviation
1  N0/N-, ER-poor, entry age less than 50  N0/N- ERpoor < 50 
2  N0/N-, ER+/unknown, entry age less than 50  N0/N- ER+/? < 50 
3  N+/N?, ER-poor, entry age less than 50  N+/N? ERpoor < 50 
4  N+/N?, ER+/unknown, entry age less than 50  N+/N? ER+/? < 50 
5  N0/N-, ER-poor, entry age 50 - 59  N0/N- ERpoor 50-59 
6  N0/N-, ER+/unknown, entry age 50 - 59  N0/N- ER+/? 50-59 
7  N+/N?, ER-poor, entry age 50 - 59  N+/N? ERpoor 50-59 
8  N+/N?, ER+/unknown, entry age 50 - 59 N+/N? ER+/? 50-59 
9  N0/N-, ER-poor, entry age 60 - 69  N0/N- ERpoor 60-69
10  N0/N-, ER+/unknown, entry age 60 - 69  N0/N- ER+/? 60-69 
11  N+/N?, ER-poor, entry age 60 - 69  N+/N? ERpoor 60-69 
12  N+/N?, ER+/unknown, entry age 60 - 69  N+/N? ER+/? 60-69 
13  N0/N-, ER-poor, entry age 70 or more  N0/N- ERpoor 70+ 
14 N0/N-, ER+/unknown, entry age 70 or more  N0/N- ER+/? 70+ 
15  N+/N?, ER-poor, entry age 70 or more  N+/N? ERpoor 70+ 
16  N+/N?, ER+/unknown, entry age 70 or more N+/N? ER+/? 70+
 
Regrouping 45 of Entry Age, Nodal & E.R. Status -4
Stratum Abbreviation
1 N0/N-, ER-poor, entry age less than 50 N0/N- ERpoor < 50
2 N0/N-, ER+/unknown, entry age less than 50 N0/N- ER+/? < 50
3 N+/N?, ER-poor, entry age less than 50 N+/N? ERpoor < 50
4 N+/N?, ER+/unknown, entry age less than 50 N+/N? ER+/? < 50
5 N0/N-, ER-poor, entry age 50 - 69 N0/N- ERpoor 50-69
6 N0/N-, ER+/unknown, entry age 50 - 69 N0/N- ER+/? 50-69
7 N+/N?, ER-poor, entry age 50 - 69 N+/N? ERpoor 50-69
8 N+/N?, ER+/unknown, entry age 50 - 69 N+/N? ER+/? 50-69
9 N0/N-, ER-poor, entry age 70 or more N0/N- ERpoor 70+
10 N0/N-, ER+/unknown, entry age 70 or more N0/N- ER+/? 70+
11 N+/N?, ER-poor, entry age 70 or more N+/N? ERpoor 70+
12 N+/N?, ER+/unknown, entry age 70 or more N+/N? ER+/? 70+
 
Regrouping 46 of Entry Age, Nodal & E.R. Status -5
Stratum Abbreviation
1 N0/N-, ER-poor, entry age less than 50 N0/N- ERpoor < 50
2 N0/N-, ER unknown, entry age less than 50 N0/N- ER? < 50
3 N0/N-, ER+, entry age less than 50 N0/N- ER+ < 50
4 N+/N?, ER-poor, entry age less than 50 N+/N? ERpoor < 50
5 N+/N?, ER unknown, entry age less than 50 N+/N? ER? < 50
6 N+/N?, ER+, entry age less than 50 N+/N? ER+ < 50
7 N0/N-, ER-poor, entry age 50 - 69 N0/N- ERpoor 50-69
8 N0/N-, ER unknown, entry age 50 - 69 N0/N- ER? 50-69
9 N0/N-, ER+, entry age 50 - 69 N0/N- ER+ 50-69
10 N+/N?, ER-poor, entry age 50 - 69 N+/N? ERpoor 50-69
11 N+/N?, ER unknown, entry age 50 - 69 N+/N? ER? 50-69
12 N+/N?, ER+, entry age 50 - 69 N+/N? ER+ 50-69
13 N0/N-, ER-poor, entry age 70 or more N0/N- ERpoor 70+
14 N0/N-, ER unknown, entry age 70 or more N0/N- ER? 70+
15 N0/N-, ER+, entry age 70 or more N0/N- ER+ 70+
16 N+/N?, ER-poor, entry age 70 or more N+/N? ERpoor 70+
17 N+/N?, ER unknown, entry age 70 or more N+/N? ER? 70+
18 N+/N?, ER+, entry age 70 or more N+/N? ER+ 70+
 
Regrouping 57 of Entry Age, Nodal & E.R. Status -6
Stratum Abbreviation
1 ER-poor, entry age less than 50 ERpoor, < 50
2 ER-poor, entry age 50 - 59 ERpoor, 50-59
3 ER-poor, entry age 60 - 69 ERpoor, 60-69
4 ER-poor, entry age 70 or more ERpoor, 70+
5 ER+/unknown, entry age less than 50 ER+/?, < 50
6 ER+/unknown, entry age 50 - 59 ER+/?, 50-59
7 ER+/unknown, entry age 60 - 69 ER+/?, 60-69
8 ER+/unknown, entry age 70 or more ER+/?, 70+
 
Regrouping 58 of Entry Age, Nodal & E.R. Status -7
Stratum Abbreviation
1 ER-poor, entry age less than 50 ERpoor, < 50
2 ER unknown, entry age less than 50 ER?, < 50
3 ER+, entry age less than 50 ER+, < 50
4 ER-poor, entry age 50 - 59 ERpoor, 50-59
5 ER unknown, entry age 50 - 59 ER?, 50-59
6 ER+, entry age 50 - 59 ER+, 50-59
7 ER-poor, entry age 60 - 69 ERpoor, 60-69
8 ER unknown, entry age 60 - 69 ER?, 60-69
9 ER+, entry age 60 - 69 ER+, 60-69
10 ER-poor, entry age 70 or more ERpoor, 70+
11 ER unknown, entry age 70 or more ER?, 70+
12 ER+, entry age 70 or more ER+, 70+
 
Regrouping 62 of Entry Age, Nodal & E.R. Status -8
Stratum Abbreviation
1 ER-poor, entry age less than 50 ERpoor, < 50
2 ER unknown, entry age less than 50 ER?, < 50
3 ER+, entry age less than 50 ER+, < 50
4 ER-poor, entry age 50 - 69 ERpoor, 50-69
5 ER unknown, entry age 50 - 69 ER?, 50-69
6 ER+, entry age 50 - 69 ER+, 50-69
7 ER-poor, entry age 70 or more ERpoor, 70+
8 ER unknown, entry age 70 or more ER?, 70+
9 ER+, entry age 70 or more ER+, 70+
 
21 Entry Age and E.R. Status EA
Stratum Abbreviation
1 Entry age less than 50, ER-poor < 50, ERpoor
2 Entry age 50 - 69, ER-poor 50 - 69, ERpoor
3 Entry age 70 or more, ER-poor 70+, ERpoor
4 Entry age less than 50, ER unknown < 50, ER?
5 Entry age 50 - 69, ER unknown 50 - 69, ER?
6 Entry age 70 or more, ER unknown 70+, ER?
7 Entry age less than 50, ER+ < 50, ER+
8 Entry age 50 - 69, ER+ 50 - 69, ER+
9 Entry age 70 or more, ER+ 70+, ER+
10 Entry age less than 50, ER++ < 50, ER++
11 Entry age 50 - 69, ER++ 50 - 69, ER++
12 Entry age 70 or more, ER++ 70+, ER++
 
Regrouping 43 of Entry Age and E.R. Status -2
Stratum Abbreviation
1 Entry age less than 50, ER-poor < 50, ERpoor
2 Entry age 50 - 69, ER-poor 50 - 69, ERpoor
3 Entry age 70 or more, ER-poor 70+, ERpoor
4 Entry age less than 50, ER+/unknown < 50, ER+/?
5 Entry age 50 - 69, ER+/unknown 50 - 69, ER+/?
6 Entry age 70 or more, ER+/unknown 70+, ER+/?
 
Regrouping 44 of Entry Age and E.R. Status -3
Stratum Abbreviation
1 Entry age less than 50, ER-poor < 50, ERpoor
2 Entry age 50 - 69, ER-poor 50 - 69, ERpoor
3 Entry age 70 or more, ER-poor 70+, ERpoor
4 Entry age less than 50, ER unknown < 50, ER?
5 Entry age 50 - 69, ER unknown 50 - 69, ER?
6 Entry age 70 or more, ER unknown 70+, ER?
7 Entry age less than 50, ER+/ER++ < 50, ER+/++
8 Entry age 50 - 69, ER+/ER++ 50 - 69, ER+/++
9 Entry age 70 or more, ER+/ER++ 70+, ER+/++
 
22 Entry Age and Menop. Status M3
Stratum Abbreviation
1 Pre- and perimenopausal, entry age less than 50 Pre/Peri < 50
2 Postmenopausal, entry age less than 50 Post < 50
3 Pre- and perimenopausal, entry age 50 - 69 Pre/Peri 50-69
4 Postmenopausal, entry age 50 - 69 Post 50-69
5 All menopausal status, entry age 70 or more All 70+
 
23 Entry Age A3
Stratum Abbreviation
1 Entry age less than 30 Age < 30
2 Entry age 30 - 34 Age 30 - 34
3 Entry age 35 - 39 Age 35 - 39
4 Entry age 40 - 44 Age 40 - 44
5 Entry age 45 - 49 Age 45 - 49
6 Entry age 50 - 54 Age 50 - 54
7 Entry age 55 - 59 Age 55 - 59
8 Entry age 60 - 64 Age 60 - 64
9 Entry age 65 - 69 Age 65 - 69
10 Entry age 70 - 74 Age 70 - 74
11 Entry age 75 - 79 Age 75 - 79
12 Entry age 80 or more Age 80+
13 Entry age unknown Age unknown
 
24 Primary Tumour Laterality L
Stratum Abbreviation
1 Left-sided primary, entry age less than 50 Left, < 50
2 Right-sided primary, entry age less than 50 Right, < 50
3 Bilateral primaries, entry age less than 50 Bilateral, < 50
4 Primary laterality unknown, entry age less than 50 Side ?, < 50
5 Left-sided primary, entry age 50 or more Left, 50+
6 Right-sided primary, entry age 50 or more Right, 50+
7 Bilateral primaries, entry age 50 or more Bilateral, 50+
8 Primary laterality unknown, entry age 50 or more Side ?, 50+
Regrouping 49 of Primary Tumour Laterality -1
Stratum Abbreviation
1 Left-sided primary Left
2 Right-sided primary Right
3 Bilateral primaries Bilateral
4 Primary laterality unknown Side unknown
25 Primary Tumour Grade G
Stratum Abbreviation
1 Well-differentiated, entry age less than 50 Well, < 50
2 Moderately-differentiated, entry age less than 50 Moderate, < 50
3 Poorly-differentiated, entry age less than 50 Poor, < 50
4 Primary grade unknown, entry age less than 50 Grade ?, < 50
5 Well-differentiated, entry age 50 or more Well, 50+
6 Moderately-differentiated, entry age 50 or more Moderate, 50+
7 Poorly-differentiated, entry age 50 or more Poor, 50+
8 Primary grade unknown, entry age 50 or more Grade ?, 50+
Regrouping 50 of Primary Tumour Grade -1
Stratum Abbreviation
1 Well-differentiated primary Well-differentiated
2 Moderately-differentiated primary Moderately-diff.
3 Poorly-differentiated primary Poorly-diff.
4 Primary grade unknown Grade unknown
26 Entry Age and Nodal Status AN3
Stratum Abbreviation
1 Entry age less than 50, N0/N- < 50, N0/N-
2 Entry age 50 or more, N0/N- 50+, N0/N-
3 Entry age less than 50, N+/N? < 50, N+/N?
4 Entry age 50 or more, N+/N? 50+, N+/N?
27 Entry Age, Nodal & E.R. Status ANE2
Stratum Abbreviation
1 N0/N-, ER-poor, entry age less than 50 N0/N- ERpoor < 50
2 N0/N-, ER unknown, entry age less than 50 N0/N- ER? < 50
3 N0/N-, ER+, entry age less than 50 N0/N- ER+ < 50
4 N0/N-, ER++, entry age less than 50 N0/N- ER++ < 50
5 N+/N?, ER-poor, entry age less than 50 N+/N? ERpoor < 50
6 N+/N?, ER unknown, entry age less than 50 N+/N? ER? < 50
7 N+/N?, ER+, entry age less than 50 N+/N? ER+ < 50
8 N+/N?, ER++, entry age less than 50 N+/N? ER++ < 50
9 N0/N-, ER-poor, entry age 50 or more N0/N- ERpoor 50+
10 N0/N-, ER unknown, entry age 50 or more N0/N- ER? 50+
11 N0/N-, ER+, entry age 50 or more N0/N- ER+ 50+
12 N0/N-, ER++, entry age 50 or more N0/N- ER++ 50+
13 N+/N?, ER-poor, entry age 50 or more N+/N? ERpoor 50+
14 N+/N?, ER unknown, entry age 50 or more N+/N? ER? 50+
15 N+/N?, ER+, entry age 50 or more N+/N? ER+ 50+
16 N+/N?, ER++, entry age 50 or more N+/N? ER++ 50+
Regrouping 51 of Entry Age, Nodal & E.R. Status -5
Stratum Abbreviation
1 ER-poor ERpoor
2 ER+/unknown ER+/?
Regrouping 65 of Entry Age, Nodal & E.R. Status -6
Stratum Abbreviation
1  ER-poor  ERpoor
2  ER unknown  ER? 
3 ER+  ER+ 
4  ER++  ER++ 
 
Regrouping 66 of Entry Age, Nodal & E.R. Status -7
Stratum Abbreviation
1  ER-poor  ERpoor 
2  ER unknown  ER? 
3  ER+  ER+ 
 
28 Age, Nodal Status & Laterality ANL
Stratum Abbreviation
1 Left-sided primary, entry age less than 50, N0/N- Left, < 50, N0/N-
2 Left-sided primary, entry age less than 50, N+/N? Left, < 50, N+/N?
3 Right-sided primary, entry age less than 50, N0/N- Right, < 50, N0/N-
4 Right-sided primary, entry age less than 50, N+/N? Right, < 50, N+/N?
5 Bilateral primaries, age less than 50, N0/N- Both, < 50, N0/N-
6 Bilateral primaries, age less than 50, N+/N? Both, < 50, N+/N?
7 Primary laterality unkn., entry age less than 50, N0/N- Side ?, < 50, N0/N-
8 Primary laterality unkn., entry age less than 50, N+/N? Side ?, < 50, N+/N?
9 Left-sided primary, entry age 50 or more, N0/N- Left, 50+, N0/N-
10 Left-sided primary, entry age 50 or more, N+/N? Left, 50+, N+/N?
11 Right-sided primary, entry age 50 or more, N0/N- Right, 50+, N0/N-
12 Right-sided primary, entry age 50 or more, N+/N? Right, 50+, N+/N?
13 Bilateral primaries, entry age 50 or more, N0/N- Both, 50+, N0/N-
14 Bilateral primaries, entry age 50 or more, N+/N? Both, 50+, N+/N?
15 Primary laterality unkn., entry age 50 or more, N0/N- Side ?, 50+, N0/N-
16 Primary laterality unkn., entry age 50 or more, N+/N? Side ?, 50+, N+/N?
Regrouping 52 of Age, Nodal Status & Laterality -5
Stratum Abbreviation
1 Left-sided primary Left
2 Right-sided primary Right
3 Bilateral primaries Bilateral
4 Primary laterality unknown Side unknown
29 Entry Age, Menop./Nodal Status ANM
Stratum Abbreviation
1  Pre- and perimenop., entry age less than 50, N0/N-  Pre/Peri < 50 N0/N-
2  Postmenopausal, entry age less than 50, N0/N-  Post < 50 N0/N-
3  Pre- and perimenopausal, entry age 50 - 69, N0/N-  Pre/Peri 50-69 N0/N-
4  Postmenopausal, entry age 50 - 69, N0/N-  Post 50-69 N0/N-
5  All menopausal status, entry age 70 or more, N0/N- All 70+ N0/N-
6  Pre- and perimenop., entry age less than 50, N+/N? Pre/Peri < 50 N+/N?
7 Postmenopausal, entry age less than 50, N+/N? Post < 50 N+/N?
8 Pre- and perimenopausal, entry age 50 - 69, N+/N? Pre/Peri 50-69 N+/N?
9 Postmenopausal, entry age 50 - 69, N+/N? Post 50-69 N+/N?
10 All menopausal status, entry age 70 or more, N+/N? All 70+ N+/N?
 
Regrouping 59 of Entry Age, Menop./Nodal Status -2
Stratum Abbreviation
1  Pre- and perimenopausal, entry age less than 50  Pre/Peri < 50 
2  Postmenopausal, entry age less than 50  Post < 50 
3  Pre- and perimenopausal, entry age 50 - 69  Pre/Peri 50-69 
4  Postmenopausal, entry age 50 - 69 Post 50-69 
5  All menopausal status, entry age 70 or more  All 70+ 
 
30 Tumour Size, Age & Nodal Stat. ATN
Stratum Abbreviation
1  T1, entry age less than 50, N0/N-  T1, < 50, N0/N- 
2  T1, entry age 50 or more, N0/N-  T1, 50+, N0/N-
3  T1, entry age less than 50, N+/N?  T1, < 50, N+/N? 
4  T1, entry age 50 or more, N+/N?  T1, 50+, N+/N?
5  T2, entry age less than 50, N0/N-  T2, < 50, N0/N-
6  T2, entry age 50 or more, N0/N-  T2, 50+, N0/N-
7  T2, entry age less than 50, N+/N?  T2, < 50, N+/N?
8  T2, entry age 50 or more, N+/N?  T2, 50+, N+/N?
9  T3, entry age less than 50, N0/N-  T3, < 50, N0/N-
10  T3, entry age 50 or more, N0/N-  T3, 50+, N0/N-
11  T3, entry age less than 50, N+/N?  T3, < 50, N+/N?
12 T3, entry age 50 or more, N+/N?  T3, 50+, N+/N? 
13  T3+ / T4, entry age less than 50, N0/N- T3+/T4, < 50, N0/N-
14  T3+ / T4, entry age 50 or more, N0/N-  T3+/T4, 50+, N0/N- 
15  T3+ / T4, entry age less than 50, N+/N? T3+/T4, < 50, N+/N?
16  T3+ / T4, entry age 50 or more, N+/N?  T3+/T4, 50+, N+/N? 
17  Other / unknown size, entry less than 50, N0/N-  Other/?, < 50, N0/N- 
18  Other / unknown size, entry age 50 or more, N0/N- Other/?, 50+, N0/N- 
19  Other / unknown size, entry less than 50, N+/N?  Other/?, < 50, N+/N?
20  Other / unknown size, entry age 50 or more, N+/N?  Other/?, 50+, N+/N? 
 
Regrouping 79 of Tumour Size, Age & Nodal Stat. -1
Stratum Abbreviation
1  N0/N-, 1 - 20 mm (T1)  N0/N- 1-20mm (T1) 
2  N0/N-, 21 - 50 mm (T2)  N0/N- 21-50mm (T2)
3  N0/N-, 51 - 100 mm (T3)  N0/N- 51-100mm (T3) 
4 N0/N-, > 100 mm (T3+/T4) N0/N- >100mm, T3+/T4 
5  N0/N-, other / unknown size N0/N- other/size ?
6 N+/N?, 1 - 20 mm (T1) N+/N? 1-20mm (T1)
7 N+/N?, 21 - 50 mm (T2) N+/N? 21-50mm (T2)
8 N+/N?, 51 - 100 mm (T3) N+/N? 51-100mm (T3)
9 N+/N?, > 100 mm (T3+/T4) N+/N? >100mm, T3+/T4
10 N+/N?, other / unknown size N+/N? other/size ?
Regrouping 82 of Tumour Size, Age & Nodal Stat. -3
Stratum Abbreviation
1  1 - 20 mm (T1), entry age less than 50  1-20mm (T1) , < 50
2  21 - 50 mm (T2) , entry age less than 50 21-50mm (T2), < 50
3  51 - 100 mm (T3) , entry age less than 50 51-100mm (T3) , < 50
4  > 100 mm (T3+/T4), entry age less than 50 >100mm, T3+/T4 , < 50
5  Other / unknown size, entry age less than 50 Other / size ?, < 50
6 1 - 20 mm (T1), entry age 50 or more 1-20mm (T1), 50+
7 21 - 50 mm (T2), entry age 50 or more 21-50mm (T2), 50+
8 51 - 100 mm (T3), entry age 50 or more 51-100mm (T3), 50+
9 > 100 mm (T3+/T4), entry age 50 or more >100mm, T3+/T4, 50+
10 Other / unknown size, entry age 50 or more Other / size ?, 50+
Regrouping 61 of Tumour Size, Age & Nodal Stat. -5
Stratum Abbreviation
1  1 - 20 mm (T1)  1 - 20 mm (T1) 
2  21 - 50 mm (T2)  21 - 50 mm (T2)
3  51 - 100 mm (T3)  51 - 100 mm (T3) 
4  > 100 mm (T3+/T4) > 100 mm (T3+/T4) 
5  Other / unknown size Other / unknown size
 
31 Grade, Age and Nodal Status ANG
Stratum Abbreviation
1 Well-differentiated, entry age less than 50, N0/N- Well, < 50, N0/N-
2 Moderately-differentiated, entry age less than 50, N0/N- Moderate, < 50, N0/N-
3 Poorly-differentiated, entry age less than 50, N0/N- Poor, < 50, N0/N-
4 Primary grade unknown, entry age less than 50, N0/N- Grade ?, < 50, N0/N-
5 Well-differentiated, entry age less than 50, N+/N? Well, < 50, N+/N?
6 Moderately-differentiated, entry age less than 50, N+/N? Moderate, < 50, N+/N?
7 Poorly-differentiated, entry age less than 50, N+/N? Poor, < 50, N+/N?
8 Primary grade unknown, entry age less than 50, N+/N? Grade ?, < 50, N+/N?
9 Well-differentiated, entry age 50 or more, N0/N- Well, 50+, N0/N-
10 Moderately-differentiated, entry age 50 or more, N0/N- Moderate, 50+, N0/N-
11 Poorly-differentiated, entry age 50 or more, N0/N- Poor, 50+, N0/N-
12 Primary grade unknown, entry age 50 or more, N0/N- Grade ?, 50+, N0/N-
13 Well-differentiated, entry age 50 or more, N+/N? Well, 50+, N+/N?
14 Moderately-differentiated, entry age 50 or more, N+/N? Moderate, 50+, N+/N?
15 Poorly-differentiated, entry age 50 or more, N+/N? Poor, 50+, N+/N?
16 Primary grade unknown, entry age 50 or more, N+/N? Grade ?, 50+, N+/N?
Regrouping 83 of Grade, Age and Nodal Status -3
Stratum Abbreviation
1 Well-differentiated, entry age less than 50 Well-diff., < 50
2 Moderately-differentiated, entry age less than 50 Moderately-diff <50.
3 Poorly-differentiated, entry age less than 50 Poorly-diff., < 50
4 Primary grade unknown, entry age less than 50 Grade ?, < 50
5 Well-differentiated, entry age 50 or more Well-diff., 50+
6 Moderately-differentiated, entry age 50 or more Moderately-diff. 50+
7 Poorly-differentiated, entry age 50 or more Poorly-diff., 50+
8 Primary grade unknown, entry age 50 or more Grade ?, 50+
Regrouping 64 of Grade, Age and Nodal Status -5
Stratum Abbreviation
1 Well-differentiated primary Well-differentiated
2 Moderately-differentiated primary Moderately-diff.
3 Poorly-differentiated primary Poorly-diff.
4 Primary grade unknown Grade unknown
32 Tumour Size, Age & Nodal Stat. ATN2
Stratum Abbreviation
1  T1, entry age less than 50, N0/N-  T1, < 50, N0/N- 
2  T1, entry age 50 or more, N0/N-  T1, 50+, N0/N-
3  T1, entry age less than 50, N+/N?  T1, < 50, N+/N? 
4  T1, entry age 50 or more, N+/N? T1, 50+, N+/N?
5  T2, entry age less than 50, N0/N-  T2, < 50, N0/N-
6  T2, entry age 50 or more, N0/N-  T2, 50+, N0/N-
7  T2, entry age less than 50, N+/N?  T2, < 50, N+/N?
8  T2, entry age 50 or more, N+/N?  T2, 50+, N+/N?
9  Other, entry age less than 50, N0/N-  Other, < 50, N0/N-
10  Other, entry age 50 or more, N0/N-  Other, 50+, N0/N-
11  Other, entry age less than 50, N+/N?  Other, < 50, N+/N?
12  Other, entry age 50 or more, N+/N?  Other, 50+, N+/N? 
13  Unknown size, entry age less than 50, N0/N- Size ?, < 50, N0/N-
14  Unknown size, entry age 50 or more, N0/N-  Size ?, 50+, N0/N- 
15  Unknown size, entry age less than 50, N+/N? Size ?, < 50, N+/N?
16  Unknown size, entry age 50 or more, N+/N?  Size ?, 50+, N+/N? 
 
Regrouping 67 of Tumour Size, Age and Nodal Stat. -5
Stratum Abbreviation
1  1 - 20 mm (T1)  1 - 20 mm (T1) 
2  21 - 50 mm (T2)  21 - 50 mm (T2)
3  Other Other
4  Unknown size Unknown size
 
Stratification Mnemonic Structure
33 Entry Age, Nodal & E.R. Status ANE3
Stratum Abbreviation
1 N0/N-, ER-poor, entry age less than 30 N0/N- ERpoor < 30
2 N0/N-, ER unknown, entry age less than 30 N0/N- ER? < 30
3 N0/N-, ER+, entry age less than 30 N0/N- ER+ < 30
4 N+/N?, ER-poor, entry age less than 30 N+/N? ERpoor < 30
5 N+/N?, ER unknown, entry age less than 30 N+/N? ER? < 30
6 N+/N?, ER+, entry age less than 30 N+/N? ER+ < 30
7 N0/N-, ER-poor, entry age 30 - 34 N0/N- ERpoor 30-34
8 N0/N-, ER unknown, entry age 30 - 34 N0/N- ER? 30-34
9 N0/N-, ER+, entry age 30 - 34 N0/N- ER+ 30-34
10 N+/N?, ER-poor, entry age 30 - 34 N+/N? ERpoor 30-34
11 N+/N?, ER unknown, entry age 30 - 34 N+/N? ER? 30-34
12 N+/N?, ER+, entry age 30 - 34 N+/N? ER+ 30-34
13 N0/N-, ER-poor, entry age 35 - 39 N0/N- ERpoor 35-39
14 N0/N-, ER unknown, entry age 35 - 39 N0/N- ER? 35-39
15 N0/N-, ER+, entry age 35 - 39 N0/N- ER+ 35-39
16 N+/N?, ER-poor, entry age 35 - 39 N+/N? ERpoor 35-39
17 N+/N?, ER unknown, entry age 35 - 39 N+/N? ER? 35-39
18 N+/N?, ER+, entry age 35 - 39 N+/N? ER+ 35-39
19 N0/N-, ER-poor, entry age 40 - 44 N0/N- ERpoor 40-44
20 N0/N-, ER unknown, entry age 40 - 44 N0/N- ER? 40-44
21 N0/N-, ER+, entry age 40 - 44 N0/N- ER+ 40-44
22 N+/N?, ER-poor, entry age 40 - 44 N+/N? ERpoor 40-44
23 N+/N?, ER unknown, entry age 40 - 44 N+/N? ER? 40-44
24 N+/N?, ER+, entry age 40 - 44 N+/N? ER+ 40-44
25 N0/N-, ER-poor, entry age 45 - 49 N0/N- ERpoor 45-49
26 N0/N-, ER unknown, entry age 45 - 49 N0/N- ER? 45-49
27 N0/N-, ER+, entry age 45 - 49 N0/N- ER+ 45-49
28 N+/N?, ER-poor, entry age 45 - 49 N+/N? ERpoor 45-49
29 N+/N?, ER unknown, entry age 45 - 49 N+/N? ER? 45-49
30 N+/N?, ER+, entry age 45 - 49 N+/N? ER+ 45-49
31 N0/N-, ER-poor, entry age 50 - 54 N0/N- ERpoor 50-54
32 N0/N-, ER unknown, entry age 50 - 54 N0/N- ER? 50-54
33 N0/N-, ER+, entry age 50 - 54 N0/N- ER+ 50-54
34 N+/N?, ER-poor, entry age 50 - 54 N+/N? ERpoor 50-54
35 N+/N?, ER unknown, entry age 50 - 54 N+/N? ER? 50-54
36 N+/N?, ER+, entry age 50 - 54 N+/N? ER+ 50-54
37 N0/N-, ER-poor, entry age 55 - 59 N0/N- ERpoor 55-59
38 N0/N-, ER unknown, entry age 55 - 59 N0/N- ER? 55-59
39 N0/N-, ER+, entry age 55 - 59 N0/N- ER+ 55-59
40 N+/N?, ER-poor, entry age 55 - 59 N+/N? ERpoor 55-59
41 N+/N?, ER unknown, entry age 55 - 59 N+/N? ER? 55-59
42 N+/N?, ER+, entry age 55 - 59 N+/N? ER+ 55-59
43 N0/N-, ER-poor, entry age 60 - 64 N0/N- ERpoor 60-64
44 N0/N-, ER unknown, entry age 60 - 64 N0/N- ER? 60-64
45 N0/N-, ER+, entry age 60 - 64 N0/N- ER+ 60-64
46 N+/N?, ER-poor, entry age 60 - 64 N+/N? ERpoor 60-64
47 N+/N?, ER unknown, entry age 60 - 64 N+/N? ER? 60-64
48 N+/N?, ER+, entry age 60 - 64 N+/N? ER+ 60-64
49 N0/N-, ER-poor, entry age 65 - 69 N0/N- ERpoor 65-69
50 N0/N-, ER unknown, entry age 65 - 69 N0/N- ER? 65-69
51 N0/N-, ER+, entry age 65 - 69 N0/N- ER+ 65-69
52 N+/N?, ER-poor, entry age 65 - 69 N+/N? ERpoor 65-69
53 N+/N?, ER unknown, entry age 65 - 69 N+/N? ER? 65-69
54 N+/N?, ER+, entry age 65 - 69 N+/N? ER+ 65-69
55 N0/N-, ER-poor, entry age 70 - 74 N0/N- ERpoor 70-74
56 N0/N-, ER unknown, entry age 70 - 74 N0/N- ER? 70-74
57 N0/N-, ER+, entry age 70 - 74 N0/N- ER+ 70-74
58 N+/N?, ER-poor, entry age 70 - 74 N+/N? ERpoor 70-74
59 N+/N?, ER unknown, entry age 70 - 74 N+/N? ER? 70-74
60 N+/N?, ER+, entry age 70 - 74 N+/N? ER+ 70-74
61 N0/N-, ER-poor, entry age 75-79 N0/N- ERpoor 75-79
62 N0/N-, ER unknown, entry age 75 - 79 N0/N- ER? 75-79
63 N0/N-, ER+, entry age 75 - 79 N0/N- ER+ 75-79
64 N+/N?, ER-poor, entry age 75-79 N+/N? ERpoor 75-79
65 N+/N?, ER unknown, entry age 75 - 79 N+/N? ER? 75-79
66 N+/N?, ER+, entry age 75 - 79 N+/N? ER+ 75-79
67 N0/N-, ER-poor, entry age 80 or more N0/N- ERpoor 80+
68 N0/N-, ER unknown, entry age 80 or more N0/N- ER? 80+
69 N0/N-, ER+, entry age 80 or more N0/N- ER+ 80+
70 N+/N?, ER-poor, entry age 80 or more N+/N? ERpoor 80+
71 N+/N?, ER unknown, entry age 80 or more N+/N? ER? 80+
72 N+/N?, ER+, entry age 80 or more N+/N? ER+ 80+
73 N0/N-, ER-poor, entry age unknown N0/N- ERpoor Age?
74 N0/N-, ER unknown, entry age unknown N0/N- ER? Age?
75 N0/N-, ER+, entry age unknown N0/N- ER+ Age?
76 N+/N?, ER-poor, entry age unknown N+/N? ERpoor Age?
77 N+/N?, ER unknown, entry age unknown N+/N? ER? Age?
78 N+/N?, ER+, entry age unknown N+/N? ER+ Age?
Regrouping 71 of Entry Age, Nodal & E.R. Status -3
Stratum Abbreviation
1 ER-poor, entry age less than 35 ER-poor, Age < 35
2 ER unknown, entry age less than 35 ER?, Age < 35
3 ER+, entry age less than 35 ER+, Age < 35
4 ER-poor, entry age 35 - 39 ER-poor, Age 35-39
5 ER unknown, entry age 35 - 39 ER?, Age 35-39
6 ER+, entry age 35 - 39 ER+, Age 35-39
7 ER-poor, entry age 40 - 44 ER-poor, Age 40-44
8 ER unknown, entry age 40 - 44 ER?, Age 40-44
9 ER+, entry age 40 - 44 ER+, Age 40-44
10 ER-poor, entry age 45 - 49 ER-poor, Age 45-49
11 ER unknown, entry age 45 - 49 ER?, Age 45-49
12 ER+, entry age 45 - 49 ER+, Age 45-49
13 ER-poor, entry age 50 - 54 ER-poor, Age 50-54
14 ER unknown, entry age 50 - 54 ER?, Age 50-54
15 ER+, entry age 50 - 54 ER+, Age 50-54
16 ER-poor, entry age 55 - 59 ER-poor, Age 55-59
17 ER unknown, entry age 55 - 59 ER?, Age 55-59
18 ER+, entry age 55 - 59 ER+, Age 55-59
19 ER-poor, entry age 60 - 64 ER-poor, Age 60-64
20 ER unknown, entry age 60 - 64 ER?, Age 60-64
21 ER+, entry age 60 - 64 ER+, Age 60-64
22 ER-poor, entry age 65 - 69 ER-poor, Age 65-69
23 ER unknown, entry age 65 - 69 ER?, Age 65-69
24 ER+, entry age 65 - 69 ER+, Age 65-69
25 ER-poor, entry age 70 or more ER-poor, Age 70+
26 ER unknown, entry age 70 or more ER?, Age 70+
27 ER+, entry age 70 or more ER+, Age 70+
28 ER-poor, entry age unknown ER-poor, Age ?
29 ER unknown, entry age unknown ER?, Age ?
30 ER+, entry age unknown ER+, Age ?
Regrouping 72 of Entry Age, Nodal & E.R. Status -4
Stratum Abbreviation
1 Entry age less than 35 Age < 35
2 Entry age 35 - 39 Age 35 - 39
3 Entry age 40 - 44 Age 40 - 44
4 Entry age 45 - 49 Age 45 - 49
5 Entry age 50 - 54 Age 50 - 54
6 Entry age 55 - 59 Age 55 - 59
7 Entry age 60 - 64 Age 60 - 64
8 Entry age 65 - 69 Age 65 - 69
9 Entry age 70 or more Age 70+
10 Entry age unknown Age ?
Regrouping 73 of Entry Age, Nodal & E.R. Status -5
Stratum Abbreviation
1 ER-poor, entry age less than 35 ER-poor, Age < 35
2 ER unknown, entry age less than 35 ER?, Age < 35
3 ER+, entry age less than 35 ER+, Age < 35
4 ER-poor, entry age 35 - 39 ER-poor, Age 35-39
5 ER unknown, entry age 35 - 39 ER?, Age 35-39
6 ER+, entry age 35 - 39 ER+, Age 35-39
7 ER-poor, entry age 40 - 49 ER-poor, Age 40-49
8 ER unknown, entry age 40 - 49 ER?, Age 40-49
9 ER+, entry age 40 - 49 ER+, Age 40-49
10 ER-poor, entry age 50 - 59 ER-poor, Age 50-59
11 ER unknown, entry age 50 - 59 ER?, Age 50-59
12 ER+, entry age 50 - 59 ER+, Age 50-59
13 ER-poor, entry age 60 - 69 ER-poor, Age 60-69
14 ER unknown, entry age 60 - 69 ER?, Age 60-69
15 ER+, entry age 60 - 69 ER+, Age 60-69
16 ER-poor, entry age 70 or more ER-poor, Age 70+
17 ER unknown, entry age 70 or more ER?, Age 70+
18 ER+, entry age 70 or more ER+, Age 70+
19 ER-poor, entry age unknown ER-poor, Age ?
20 ER unknown, entry age unknown ER?, Age ?
21 ER+, entry age unknown ER+, Age ?
Regrouping 68 of Entry Age, Nodal & E.R. Status -7
Stratum Abbreviation
1 ER-poor, entry age less than 30 ER-poor, Age < 30
2 ER unknown, entry age less than 30 ER?, Age < 30
3 ER+, entry age less than 30 ER+, Age < 30
4 ER-poor, entry age 30 - 34 ER-poor, Age 30-34
5 ER unknown, entry age 30 - 34 ER?, Age 30-34
6 ER+, entry age 30 - 34 ER+, Age 30-34
7 ER-poor, entry age 35 - 39 ER-poor, Age 35-39
8 ER unknown, entry age 35 - 39 ER?, Age 35-39
9 ER+, entry age 35 - 39 ER+, Age 35-39
10 ER-poor, entry age 40 - 44 ER-poor, Age 40-44
11 ER unknown, entry age 40 - 44 ER?, Age 40-44
12 ER+, entry age 40 - 44 ER+, Age 40-44
13 ER-poor, entry age 45 - 49 ER-poor, Age 45-49
14 ER unknown, entry age 45 - 49 ER?, Age 45-49
15 ER+, entry age 45 - 49 ER+, Age 45-49
16 ER-poor, entry age 50 - 54 ER-poor, Age 50-54
17 ER unknown, entry age 50 - 54 ER?, Age 50-54
18 ER+, entry age 50 - 54 ER+, Age 50-54
19 ER-poor, entry age 55 - 59 ER-poor, Age 55-59
20 ER unknown, entry age 55 - 59 ER?, Age 55-59
21 ER+, entry age 55 - 59 ER+, Age 55-59
22 ER-poor, entry age 60 - 64 ER-poor, Age 60-64
23 ER unknown, entry age 60 - 64 ER?, Age 60-64
24 ER+, entry age 60 - 64 ER+, Age 60-64
25 ER-poor, entry age 65 - 69 ER-poor, Age 65-69
26 ER unknown, entry age 65 - 69 ER?, Age 65-69
27 ER+, entry age 65 - 69 ER+, Age 65-69
28 ER-poor, entry age 70 - 74 ER-poor, Age 70-74
29 ER unknown, entry age 70 - 74 ER?, Age 70-74
30 ER+, entry age 70 - 74 ER+, Age 70-74
31 ER-poor, entry age 75-79 ER-poor, Age 75-79
32 ER unknown, entry age 75 - 79 ER?, Age 75-79
33 ER+, entry age 75 - 79 ER+, Age 75-79
34 ER-poor, entry age 80 or more ER-poor, Age 80+
35 ER unknown, entry age 80 or more ER?, Age 80+
36 ER+, entry age 80 or more ER+, Age 80+
37 ER-poor, entry age unknown ER-poor, Age ?
38 ER unknown, entry age unknown ER?, Age ?
39 ER+, entry age unknown ER+, Age ?
34 Entry Age, Nodal Status & BED ANB
Stratum Abbreviation
1 N0/N-, entry age less than 50, zero BED N0/N- < 50 Zero BED
2 N+/N?, entry age less than 50, zero BED N+/N? < 50 Zero BED
3 N0/N-, entry age less than 50, low BED N0/N- < 50 Low BED
4 N+/N?, entry age less than 50, low BED N+/N? < 50 Low BED
5 N0/N-, entry age less than 50, medium BED N0/N- < 50 Med. BED
6 N+/N?, entry age less than 50, medium BED N+/N? < 50 Med. BED
7 N0/N-, entry age less than 50, high BED N0/N- < 50 High BED
8 N+/N?, entry age less than 50, high BED N+/N? < 50 High BED
9 N0/N-, entry age less than 50, BED unknown N0/N- < 50 BED ?
10 N+/N?, entry age less than 50, BED unknown N+/N? < 50 BED ?
11 N0/N-, entry age 50 or more, zero BED N0/N- 50+ Zero BED
12 N+/N?, entry age 50 or more, zero BED N+/N? 50+ Zero BED
13 N0/N-, entry age 50 or more, low BED N0/N- 50+ Low BED
14 N+/N?, entry age 50 or more, low BED N+/N? 50+ Low BED
15 N0/N-, entry age 50 or more, medium BED N0/N- 50+ Med. BED
16 N+/N?, entry age 50 or more, medium BED N+/N? 50+ Med. BED
17 N0/N-, entry age 50 or more, high BED N0/N- 50+ High BED
18 N+/N?, entry age 50 or more, high BED N+/N? 50+ High BED
19 N0/N-, entry age 50 or more, BED unknown N0/N- 50+ BED ?
20 N+/N?, entry age 50 or more, BED unknown N+/N? 50+ BED ?
Regrouping 69 of Entry Age, Nodal Status & BED -1
Stratum Abbreviation
1 N0/N-, zero BED N0/N-, Zero BED
2 N+/N?, zero BED N+/N?, Zero BED
3 N0/N-, low BED N0/N-, Low BED
4 N+/N?, low BED N+/N?, Low BED
5 N0/N-, medium BED N0/N-, Medium BED
6 N+/N?, medium BED N+/N?, Medium BED
7 N0/N-, high BED N0/N-, High BED
8 N+/N?, high BED N+/N?, High BED
9 N0/N-, BED unknown N0/N-, BED ?
10 N+/N?, BED unknown N+/N?, BED ?
Regrouping 70 of Entry Age, Nodal Status & BED -5
Stratum Abbreviation
1 Zero BED Zero BED
2 Low BED Low BED
3 Medium BED Medium BED
4 High BED High BED
5 BED unknown BED ?
35 Nodal and E.R. Status NE4
Stratum Abbreviation
1 N0/N-, ER-poor, entry age less than 50 N0/N- ERpoor < 50
2 N0/N-, ER unknown, entry age less than 50 N0/N- ER? < 50
3 N0/N-, ER+, entry age less than 50 N0/N- ER+ < 50
4 N?, ER-poor, entry age less than 50 N? ERpoor < 50
5 N?, ER unknown, entry age less than 50 N? ER? < 50
6 N?, ER+, entry age less than 50 N? ER+ < 50
7 N+, ER-poor, entry age less than 50 N+ ERpoor < 50
8 N+, ER unknown, entry age less than 50 N+ ER? < 50
9 N+, ER+, entry age less than 50 N+ ER+ < 50
10 N0/N-, ER-poor, entry age 50 or more N0/N- ERpoor 50+
11 N0/N-, ER unknown, entry age 50 or more N0/N- ER? 50+
12 N0/N-, ER+, entry age 50 or more N0/N- ER+ 50+
13 N?, ER-poor, entry age 50 or more N? ERpoor 50+
14 N?, ER unknown, entry age 50 or more N? ER? 50+
15 N?, ER+, entry age 50 or more N? ER+ 50+
16 N+, ER-poor, entry age 50 or more N+ ERpoor 50+
17 N+, ER unknown, entry age 50 or more N+ ER? 50+
18 N+, ER+, entry age 50 or more N+ ER+ 50+
Regrouping 75 of Nodal and E.R. Status -1
Stratum Abbreviation
1 N0/N-, ER-poor N0/N- ER-poor
2 N0/N-, ER unknown N0/N- ER?
3 N0/N-, ER+ N0/N- ER+
4 N?, ER-poor N? ER-poor
5 N?, ER unknown N? ER?
6 N?, ER+ N? ER+
7 N+, ER-poor N+ ER-poor
8 N+, ER unknown N+ ER?
9 N+, ER+ N+ ER+
Regrouping 76 of Nodal and E.R. Status -2
Stratum Abbreviation
1 N0/N-, entry age less than 50 N0/N-, < 50
2 N?, entry age less than 50 N?,- < 50
3 N+, entry age less than 50 N+, < 50
4 N0/N-, entry age 50 or more N0/N-, 50+
5 N?, entry age 50 or more N?, 50+
6 N+, entry age 50 or more N+, 50+
Regrouping 74 of Nodal and E.R. Status -3
Stratum Abbreviation
1 N0/N- N0/N-
2 N? N?
3 N+ N+
Regrouping 77 of Nodal and E.R. Status -4
Stratum Abbreviation
1 ER-poor, entry age less than 50 ER-poor, < 50
2 ER?, entry age less than 50 ER?,- < 50
3 ER+, entry age less than 50 ER+, < 50
4 ER-poor, entry age 50 or more ER-poor, 50+
5 ER?, entry age 50 or more ER?, 50+
6 ER+, entry age 50 or more ER+, 50+
36 Tumour, Age, E.R., Nodal Stat. ATNE
Stratum Abbreviation
1 T1, entry age less than 50, N0/N-, ER-poor T1 < 50 N0/N- ERpoor
2 T1, entry age 50 or more, N0/N-, ER-poor T1 50+ N0/N- ERpoor
3 T1, entry age less than 50, N+/N?, ER-poor T1 < 50 N+/N? ERpoor
4 T1, entry age 50 or more, N+/N?, ER-poor T1 50+ N+/N? ERpoor
5 T2, entry age less than 50, N0/N-, ER-poor T2 < 50 N0/N- ERpoor
6 T2, entry age 50 or more, N0/N-, ER-poor T2 50+ N0/N- ERpoor
7 T2, entry age less than 50, N+/N?, ER-poor T2 < 50 N+/N? ERpoor
8 T2, entry age 50 or more, N+/N?, ER-poor T2 50+ N+/N? ERpoor
9 T3, entry age less than 50, N0/N-, ER-poor T3 < 50 N0/N- ERpoor
10 T3, entry age 50 or more, N0/N-, ER-poor T3 50+ N0/N- ERpoor
11 T3, entry age less than 50, N+/N?, ER-poor T3 < 50 N+/N? ERpoor
12 T3, entry age 50 or more, N+/N?, ER-poor T3 50+ N+/N? ERpoor
13 T3+ / T4, entry age less than 50, N0/N-, ER-poor T3+/T4 <50 N0/N- ERp
14 T3+ / T4, entry age 50 or more, N0/N-, ER-poor T3+/T4 50+ N0/N- ERp
15 T3+ / T4, entry age less than 50, N+/N?, ER-poor T3+/T4 <50 N+/N? ERp
16 T3+ / T4, entry age 50 or more, N+/N?, ER-poor T3+/T4 50+ N+/N? ERp
17 Other / unknown size, entry < 50, N0/N-, ER-poor Othr/? <50 N0/N- ERp
18 Other / unknown size, entry age 50+, N0/N-, ER-poor Othr/? 50+ N0/N- ERp
19 Other / unknown size, entry < 50, N+/N?, ER-poor Othr/? <50 N+/N? ERp
20 Other / unknown size, entry age 50+, N+/N?, ER-poor Othr/? 50+ N+/N? ERp
21 T1, entry age less than 50, N0/N-, ER unknown T1 < 50 N0/N- ER?
22 T1, entry age 50 or more, N0/N-, ER unknown T1 50+ N0/N- ER?
23 T1, entry age less than 50, N+/N?, ER unknown T1 < 50 N+/N? ER?
24 T1, entry age 50 or more, N+/N?, ER unknown T1 50+ N+/N? ER?
25 T2, entry age less than 50, N0/N-, ER unknown T2 < 50 N0/N- ER?
26 T2, entry age 50 or more, N0/N-, ER unknown T2 50+ N0/N- ER?
27 T2, entry age less than 50, N+/N?, ER unknown T2 < 50 N+/N? ER?
28 T2, entry age 50 or more, N+/N?, ER unknown T2 50+ N+/N? ER?
29 T3, entry age less than 50, N0/N-, ER unknown T3 < 50 N0/N- ER?
30 T3, entry age 50 or more, N0/N-, ER unknown T3 50+ N0/N- ER?
31 T3, entry age less than 50, N+/N?, ER unknown T3 < 50 N+/N? ER?
32 T3, entry age 50 or more, N+/N?, ER unknown T3 50+ N+/N? ER?
33 T3+ / T4, entry age less than 50, N0/N-, ER unkn. T3+/T4 <50 N0/N- ER?
34 T3+ / T4, entry age 50 or more, N0/N-, ER unknown T3+/T4 50+ N0/N- ER?
35 T3+ / T4, entry age less than 50, N+/N?, ER unkn. T3+/T4 <50 N+/N? ER?
36 T3+ / T4, entry age 50 or more, N+/N?, ER unknown T3+/T4 50+ N+/N? ER?
37 Other / unknown size, entry < 50, N0/N-, ER unkn. Othr/? <50 N0/N- ER?
38 Other / unknown size, entry 50+, N0/N-, ER unkn. Othr/? 50+ N0/N- ER?
39 Other / unknown size, entry < 50, N+/N?, ER unkn. Othr/? <50 N+/N? ER?
40 Other / unknown size, entry 50+, N+/N?, ER unkn. Othr/? 50+ N+/N? ER?
41 T1, entry age less than 50, N0/N-, ER+ T1 < 50 N0/N- ER+
42 T1, entry age 50 or more, N0/N-, ER+ T1 50+ N0/N- ER+
43 T1, entry age less than 50, N+/N?, ER+ T1 < 50 N+/N? ER+
44 T1, entry age 50 or more, N+/N?, ER+ T1 50+ N+/N? ER+
45 T2, entry age less than 50, N0/N-, ER+ T2 < 50 N0/N- ER+
46 T2, entry age 50 or more, N0/N-, ER+ T2 50+ N0/N- ER+
47 T2, entry age less than 50, N+/N?, ER+ T2 < 50 N+/N? ER+
48 T2, entry age 50 or more, N+/N?, ER+ T2 50+ N+/N? ER+
49 T3, entry age less than 50, N0/N-, ER+ T3 < 50 N0/N- ER+
50 T3, entry age 50 or more, N0/N-, ER+ T3 50+ N0/N- ER+
51 T3, entry age less than 50, N+/N?, ER+ T3 < 50 N+/N? ER+
52 T3, entry age 50 or more, N+/N?, ER+ T3 50+ N+/N? ER+
53 T3+ / T4, entry age less than 50, N0/N-, ER+ T3+/T4 <50 N0/N- ER+
54 T3+ / T4, entry age 50 or more, N0/N-, ER+ T3+/T4 50+ N0/N- ER+
55 T3+ / T4, entry age less than 50, N+/N?, ER+ T3+/T4 <50 N+/N? ER+
56 T3+ / T4, entry age 50 or more, N+/N?, ER+ T3+/T4 50+ N+/N? ER+
57 Other / unknown size, entry age < 50, N0/N-, ER+ Othr/? <50 N0/N- ER+
58 Other / unknown size, entry age 50+, N0/N-, ER+ Othr/? 50+ N0/N- ER+
59 Other / unknown size, entry age < 50, N+/N?, ER+ Othr/? <50 N+/N? ER+
60 Other / unknown size, entry age 50+, N+/N?, ER+ Othr/? 50+ N+/N? ER+
Regrouping 80 of Tumour, Age, E.R., Nodal Stat. -1
Stratum Abbreviation
1 N0/N-, 1 - 20 mm (T1), ER-poor N0/N- 1-20mm(T1) ERp
2 N0/N-, 21 - 50 mm (T2), ER-poor N0/N- 21-50mm(T2)ERp
3 N0/N-, 51 - 100 mm (T3), ER-poor N0/N-51-100mm(T3)ERp
4 N0/N-, > 100 mm (T3+/T4), ER-poor N0N->100mm(T3+T4)ERp
5 N0/N-, other / unknown size, ER-poor N0/N- othr/size? ERp
6 N0/N-, 1 - 20 mm (T1), ER unknown N0/N- 1-20mm(T1) ER?
7 N0/N-, 21 - 50 mm (T2), ER unknown N0/N- 21-50mm(T2)ER?
8 N0/N-, 51 - 100 mm (T3), ER unknown N0/N-51-100mm(T3)ER?
9 N0/N-, > 100 mm (T3+/T4), ER unknown N0N->100mm(T3+T4)ER?
10 N0/N-, other / unknown size, ER unknown N0/N- othr/size? ER?
11 N0/N-, 1 - 20 mm (T1), ER+ N0/N- 1-20mm(T1) ER+
12 N0/N-, 21 - 50 mm (T2), ER+ N0/N- 21-50mm(T2)ER+
13 N0/N-, 51 - 100 mm (T3), ER+ N0/N-51-100mm(T3)ER+
14 N0/N-, > 100 mm (T3+/T4), ER+ N0N->100mm(T3+T4)ER+
15 N0/N-, other / unknown size, ER+ N0/N- othr/size? ER+
16 N+/N?-, 1 - 20 mm (T1), ER-poor N+/N? 1-20mm(T1) ERp
17 N+/N?, 21 - 50 mm (T2), ER-poor N+/N? 21-50mm(T2)ERp
18 N+/N?, 51 - 100 mm (T3), ER-poor N+/N?51-100mm(T3)ERp
19 N+/N?, > 100 mm (T3+/T4), ER-poor N+N?>100mm(T3+T4)ERp
20 N+/N?, other / unknown size, ER-poor N+/N? othr/size? ERp
21 N+/N?, 1 - 20 mm (T1), ER unknown N+/N? 1-20mm(T1) ER?
22 N+/N?, 21 - 50 mm (T2), ER unknown N+/N? 21-50mm(T2)ER?
23 N+/N?, 51 - 100 mm (T3), ER unknown N+/N?51-100mm(T3)ER?
24 N+/N?, > 100 mm (T3+/T4), ER unknown N+N?>100mm(T3+T4)ER?
25 N+/N?, other / unknown size, ER unknown N+/N? othr/size? ER?
26 N+/N?, 1 - 20 mm (T1), ER+ N+/N? 1-20mm(T1) ER+
27 N+/N?, 21 - 50 mm (T2), ER+ N+/N? 21-50mm(T2)ER+
28 N+/N?, 51 - 100 mm (T3), ER+ N+/N?51-100mm(T3)ER+
29 N+/N?, > 100 mm (T3+/T4), ER+ N+N?>100mm(T3+T4)ER+
30 N+/N?, other / unknown size, ER+ N+/N? othr/size? ER+
37 Entry Age and Nodal Status AN4
Stratum Abbreviation
1 Entry age less than 50, N0/N- Age < 50, N0/N-
2 Entry age less than 50, N unknown Age < 50, N?
3 Entry age less than 50, N+ Age < 50, N+
4 Entry age 50 - 69, N0/N- Age 50 - 69, N0/N-
5 Entry age 50 - 69, N unknown Age 50 - 69, N?
6 Entry age 50 - 69, N+ Age 50 - 69, N+
7 Entry age 70 or more, N0/N- Age 70+, N0/N-
8 Entry age 70 or more, N unknown Age 70+, N?
9 Entry age 70 or more, N+ Age 70+, N+
10 Entry age unknown, N0/N- Age ?, N0/N-
11 Entry age unknown, N unknown Age ?, N?
12 Entry age unknown, N+ Age ?, N+
Regrouping 86 of Entry Age and Nodal Status -2
Stratum Abbreviation
1 Entry age less than 50 Age < 50
2 Entry age 50 - 69 Age 50 - 69
3 Entry age 70 or more Age 70+
4 Entry age unknown Age ?
38 Grade, Age and Nodal Status ANG2
Stratum Abbreviation
1 Well-differentiated, entry age less than 50, N0/N- Well, < 50, N0/N-
2 Moderately-diff., entry age less than 50, N0/N- Moderate, <50, N0/N-
3 Poorly-differentiated, entry less than 50, N0/N- Poor, < 50, N0/N-
4 Primary grade unknown, entry less than 50, N0/N- Grade ?, < 50, N0/N-
5 Well-differentiated, entry age less than 50, N? Well, < 50, N?
6 Moderately-diff., entry age less than 50, N? Moderate, <50, N?
7 Poorly-differentiated, entry less than 50, N? Poor, < 50, N?
8 Primary grade unknown, entry less than 50, N? Grade ?, < 50, N?
9 Well-differentiated, entry age less than 50, N+ Well, < 50, N+
10 Moderately-diff., entry age less than 50, N+ Moderate, <50, N+
11 Poorly-differentiated, entry less than 50, N+ Poor, < 50, N+
12 Primary grade unknown, entry less than 50, N+ Grade ?, < 50, N+
13 Well-differentiated, entry age 50 - 69, N0/N- Well, 50-69, N0/N-
14 Moderately-diff., entry age 50 - 69, N0/N- Moderate,50-69,N0/N-
15 Poorly-differentiated, entry age 50 - 69, N0/N- Poor, 50-69, N0/N-
16 Primary grade unknown, entry age 50 - 69, N0/N- Grade ?,50-69, N0/N-
17 Well-differentiated, entry age 50 - 69, N? Well, 50-69, N?
18 Moderately-diff., entry age 50 - 69, N? Moderate, 50-69, N?
19 Poorly-differentiated, entry age 50 - 69, N? Poor, 50-69, N?
20 Primary grade unknown, entry age 50 - 69, N? Grade ?, 50-69, N?
21 Well-differentiated, entry age 50 - 69, N+ Well, 50-69, N+
22 Moderately-diff., entry age 50 - 69, N+ Moderate, 50-69, N+
23 Poorly-differentiated, entry age 50 - 69, N+ Poor, 50-69, N+
24 Primary grade unknown, entry age 50 - 69, N+ Grade ?, 50-69, N+
25 Well-differentiated, entry age 70 or more, N0/N- Well, 70+, N0/N-
26 Moderately-diff., entry age 70 or more, N0/N- Moderate, 70+, N0/N-
27 Poorly-differentiated, entry age 70 or more, N0/N- Poor, 70+, N0/N-
28 Primary grade unknown, entry age 70 or more, N0/N- Grade ?, 70+, N0/N-
29 Well-differentiated, entry age 70 or more, N? Well, 70+, N?
30 Moderately-diff., entry age 70 or more, N? Moderate, 70+, N?
31 Poorly-differentiated, entry age 70 or more, N? Poor, 70+, N?
32 Primary grade unknown, entry age 70 or more, N? Grade ?, 70+, N?
33 Well-differentiated, entry age 70 or more, N+ Well, 70+, N+
34 Moderately-diff., entry age 70 or more, N+ Moderate, 70+, N+
35 Poorly-differentiated, entry age 70 or more, N+ Poor, 70+, N+
36 Primary grade unknown, entry age 70 or more, N+ Grade ?, 70+, N+
37 Well-differentiated, entry age unknown, N0/N- Well, Age ?, N0/N-
38 Moderately-diff., entry age unknown, N0/N- Moderate,Age ?,N0/N-
39 Poorly-differentiated, entry age unknown, N0/N- Poor, Age ?, N0/N-
40 Primary grade unknown, entry age unknown, N0/N- Grade ?, Age ?,N0/N-
41 Well-differentiated, entry age unknown, N? Well, Age ?, N?
42 Moderately-diff., entry age unknown, N? Moderate, Age ?, N?
43 Poorly-differentiated, entry age unknown, N? Poor, Age ?, N?
44 Primary grade unknown, entry age unknown, N? Grade ?, Age ?, N?
45 Well-differentiated, entry age unknown, N+ Well, Age ?, N+
46 Moderately-diff., entry age unknown, N+ Moderate, Age ?, N+
47 Poorly-differentiated, entry age unknown, N+ Poor, Age ?, N+
48 Primary grade unknown, entry age unknown, N+ Grade ?, Age ?, N+
Regrouping 84 of Grade, Age and Nodal Status -2
Stratum Abbreviation
1 Well-differentiated, entry age less than 50 Well, Age < 50
2 Moderately-diff., entry age less than 50 Moderate, Age < 50
3 Poorly-differentiated, entry age less than 50 Poor, Age < 50
4 Primary grade unknown, entry age less than 50 Grade ?, Age < 50
5 Well-differentiated, entry age 50 - 69 Well, Age 50-69
6 Moderately-diff., entry age 50 - 69 Moderate, Age 50-69
7 Poorly-differentiated, entry age 50 - 69 Poor, Age 50-69
8 Primary grade unknown, entry age 50 - 69 Grade ?, Age 50-69
9 Well-differentiated, entry age 70 or more Well, Age 70+
10 Moderately-diff., entry age 70 or more Moderate, Age 70+
11 Poorly-differentiated, entry age 70 or more Poor, Age 70+
12 Primary grade unknown, entry age 70 or more Grade ?, Age 70+
13 Well-differentiated, entry age unknown Well, Age ?
14 Moderately-diff., entry age unknown Moderate, Age ?
15 Poorly-differentiated, entry age unknown Poor, Age ?
16 Primary grade unknown, entry age unknown Grade ?, Age ?
39 Tumour Size, Age & Nodal Stat. ATN3
Stratum Abbreviation
1 T1 (1 - 20mm), entry age less than 50, N0/N- 1-20mm, < 50, N0/N-
2 T1 (1 - 20mm), entry age less than 50, N unknown 1-20mm, < 50, N?
3 T1 (1 - 20mm), entry age less than 50, N+ 1-20mm, < 50, N+
4 T2 (21 - 50mm), entry age less than 50, N0/N- 21-50mm, < 50, N0/N-
5 T2 (21 - 50mm), entry age less than 50, N unknown 21-50mm, < 50, N?
6 T2 (21 - 50mm), entry age less than 50, N+ 21-50mm, < 50, N+
7 T3-T4 (> 50mm), entry age less than 50, N0/N- > 50mm, < 50, N0/N-
8 T3-T4 (> 50mm), entry age less than 50, N unknown > 50mm, < 50, N?
9 T3-T4 (> 50mm), entry age less than 50, N+ > 50mm, < 50, N+
10 Other / unknown size, entry age less than 50, N0/N- Othr/size?,<50,N0/N-
11 Other / unknown size, entry age less than 50, N unknown Other/size ?,< 50,N?
12 Other / unknown size, entry age less than 50, N+ Other/size ?,< 50,N+
13 T1 (1 - 20mm), entry age 50 - 69, N0/N- 1-20mm, 50-69, N0/N-
14 T1 (1 - 20mm), entry age 50 - 69, N unknown 1-20mm, 50-69, N?
15 T1 (1 - 20mm), entry age 50 - 69, N+ 1-20mm, 50-69, N+
16 T2 (21 - 50mm), entry age 50 - 69, N0/N- 21-50mm, 50-69,N0/N-
17 T2 (21 - 50mm), entry age 50 - 69, N unknown 21-50mm, 50-69, N?
18 T2 (21 - 50mm), entry age 50 - 69, N+ 21-50mm, 50-69, N+
19 T3-T4 (> 50mm), entry age 50 - 69, N0/N- > 50mm, 50-69, N0/N-
20 T3-T4 (> 50mm), entry age 50 - 69, N unknown > 50mm, 50-69, N?
21 T3-T4 (> 50mm), entry age 50 - 69, N+ > 50mm, 50-69, N+
22 Other / unknown size, entry age 50 - 69, N0/N- Oth/siz?,50-69,N0/N-
23 Other / unknown size, entry age 50 - 69, N unknown Other/size?,50-69,N?
24 Other / unknown size, entry age 50 - 69, N+ Other/size?,50-69,N+
25 T1 (1 - 20mm), entry age 70 or more, N0/N- 1-20mm, 70+, N0/N-
26 T1 (1 - 20mm), entry age 70 or more, N unknown 1-20mm, 70+, N?
27 T1 (1 - 20mm), entry age 70 or more, N+ 1-20mm, 70+, N+
28 T2 (21 - 50mm), entry age 70 or more, N0/N- 21-50mm, 70+, N0/N-
29 T2 (21 - 50mm), entry age 70 or more, N unknown 21-50mm, 70+, N?
30 T2 (21 - 50mm), entry age 70 or more, N+ 21-50mm, 70+, N+
31 T3-T4 (> 50mm), entry age 70 or more, N0/N- > 50mm, 70+, N0/N-
32 T3-T4 (> 50mm), entry age 70 or more, N unknown > 50mm, 70+, N?
33 T3-T4 (> 50mm), entry age 70 or more, N+ > 50mm, 70+, N+
34 Other / unknown size, entry age 70 or more, N0/N- Othr/size?,70+,,N0/N-
35 Other / unknown size, entry age 70 or more, N unknown Other/size ?,70+,N?
36 Other / unknown size, entry age 70 or more, N+ Other/size ?,70+,N+
37 T1 (1 - 20mm), entry age unknown, N0/N- 1-20mm, Age ?, N0/N-
38 T1 (1 - 20mm), entry age unknown, N unknown 1-20mm, Age ?, N?
39 T1 (1 - 20mm), entry age unknown, N+ 1-20mm, Age ?, N+
40 T2 (21 - 50mm), entry age unknown, N0/N- 21-50mm, Age ?,N0/N-
41 T2 (21 - 50mm), entry age unknown, N unknown 21-50mm, Age ?, N?
42 T2 (21 - 50mm), entry age unknown, N+ 21-50mm, Age ?, N+
43 T3-T4 (> 50mm), entry age unknown, N0/N- > 50mm, Age ?, N0/N-
44 T3-T4 (> 50mm), entry age unknown, N unknown > 50mm, Age ?, N?
45 T3-T4 (> 50mm), entry age unknown, N+ > 50mm, Age ?, N+
46 Other / unknown size, entry age unknown, N0/N- Othr/siz?,Age?,N0/N-
47 Other / unknown size, entry age unknown, N unknown Other/size?,Age ?,N?
48 Other / unknown size, entry age unknown, N+ Other/size?,Age ?,N+
Regrouping 85 of Tumour Size, Age & Nodal Stat -2
Stratum Abbreviation
1 T1 (1 - 20mm), entry age less than 50 1-20mm, Age < 50
2 T2 (21 - 50mm), entry age less than 50 21-50mm, Age < 50
3 T3-T4 (> 50mm), entry age less than 50 > 50mm, Age < 50
4 Other / unknown size, entry age less than 50 Other / size ?,  < 50
5 T1 (1 - 20mm), entry age 50 - 69 1-20mm, Age 50-69
6 T2 (21 - 50mm), entry age 50 - 69 21-50mm, Age 50-69
7 T3-T4 (> 50mm), entry age 50 - 69 > 50mm, Age 50-69
8 Other / unknown size, entry age 50 - 69 Other / size?,  50-69
9 T1 (1 - 20mm), entry age 70 or more 1-20mm, Age 70+
10 T2 (21 - 50mm), entry age 70 or more 21-50mm, Age 70+
11 T3-T4 (> 50mm), entry age 70 or more > 50mm, Age 70+
12 Other / unknown size, entry age 70 or more Other / size ?,  70+
13 T1 (1 - 20mm), entry age unknown 1-20mm, Age ?
14 T2 (21 - 50mm), entry age unknown 21-50mm, Age ?
15 T3-T4 (> 50mm), entry age unknown > 50mm, Age ?
16 Other / unknown size, entry age unknown Other / size ?, Age ?
40 Grade, Age, Nodal & E.R. Stat. ANGE
Stratum Abbreviation
1 Well-diff., entry age less than 50, N0/N-, ER-poor Well, < 50,N0/N-,ERp
2 Moderately-diff., age less than 50, N0/N-, ER-poor Mod., < 50,N0/N-,ERp
3 Poorly-diff., entry less than 50, N0/N-, ER-poor Poor, < 50,N0/N-,ERp
4 Primary grade ?, age less than 50, N0/N-, ER-poor Grde?, < 50,N0/N-,ERp
5 Well-diff., entry age less than 50, N+/N?, ER-poor Well, < 50,N+/?, ERp
6 Moderately-diff., age less than 50, N+/N?, ER-poor Mod., < 50,N+/?, ERp
7 Poorly-diff., entry less than 50, N+/N?, ER-poor Poor, < 50,N+/?, ERp
8 Primary grade ?, entry less than 50, N+/N?, ER-poor Grde?,< 50,N+/?, ERp
9 Well-diff., entry age 50 or more, N0/N-, ER-poor Well, 50+,N0/N-, ERp
10 Moderately-diff., entry 50 or more, N0/N-, ER-poor Mod., 50+,N0/N-, ERp
11 Poorly-diff., entry age 50 or more, N0/N-, ER-poor Poor, 50+,N0/N-, ERp
12 Primary grade ?, entry 50 or more, N0/N-, ER-poor Grde?,50+,N0/N-, ERp
13 Well-diff., entry age 50 or more, N+/N?, ER-poor Well, 50+, N+/?, ERp
14 Moderately-diff., entry 50 or more, N+/N?, ER-poor Mod., 50+, N+/?, ERp
15 Poorly-diff., entry age 50 or more, N+/N?, ER-poor Poor, 50+, N+/?, ERp
16 Primary grade ?, entry 50 or more, N+/N?, ER-poor Grde?,50+, N+/?, ERp
17 Well-diff., entry age less than 50, N0/N-, ER+/? Well,< 50,N0/N-,ER+/?
18 Moderately-diff., entry less than 50, N0/N-, ER+/? Mod.,< 50,N0/N-,ER+/?
19 Poorly-diff., entry age less than 50, N0/N-, ER+/? Poor,< 50,N0/N-,ER+/?
20 Primary grade ?, entry less than 50, N0/N-, ER+/? Grde?,< 50,N0/N-,ER+/?
21 Well-diff., entry age less than 50, N+/N?, ER+/? Well,< 50,N+/?, ER+/?
22 Moderately-diff., entry less than 50, N+/N?, ER+/? Mod.,< 50,N+/?, ER+/?
23 Poorly-diff., entry less than 50, N+/N?, ER+/? Poor,< 50,N+/?, ER+/?
24 Primary grade ?, entry less than 50, N+/N?, ER+/? Grde?,< 50,N+/?, ER+/?
25 Well-diff., entry age 50 or more, N0/N-, ER+/? Well,50+,N0/N-,ER+/?
26 Moderately-diff., entry 50 or more, N0/N-, ER+/? Mod.,50+,N0/N-,ER+/?
27 Poorly-diff., entry age 50 or more, N0/N-, ER+/? Poor,50+,N0/N-,ER+/?
28 Primary grade ?, entry 50 or more, N0/N-, ER+/? Grde?,50+,N0/N-,ER+/?
29 Well-diff., entry age 50 or more, N+/N?, ER+/? Well,50+,N+/?, ER+/?
30 Moderately-diff., entry 50 or more, N+/N?, ER+/? Mod.,50+,N+/?, ER+/?
31 Poorly-diff., entry age 50 or more, N+/N?, ER+/? Poor,50+,N+/?, ER+/?
32 Primary grade ?, entry age 50 or more, N+/N?, ER+/? Grde?,50+,N+/?, ER+/?
Regrouping 88 of Grade, Age, Nodal & E.R. Stat. -4
Stratum Abbreviation
1 Well-differentiated, ER-poor Well-diff., ER-poor
2 Moderately-differentiated, ER-poor Moderate, ER-poor
3 Poorly-differentiated, ER-poor Poor, ER-poor
4 Primary grade unknown, ER-poor Grade ?, ER-poor
5 Well-differentiated, ER+/unknown Well-diff., ER+/?
6 Moderately-differentiated, ER+/unknown Moderate, ER+/?
7 Poorly-differentiated, ER+/unknown Poor, ER+/?
8 Primary grade unknown, ER+/unknown Grade ?, ER+/?

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[End of document, updated to 13 May 2005]