BC 1995 - breast cancer - analysis details: endpoints, steering files and strata

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Contents List


BC 1995 run-time diktats


List of BC 1995 endpoints

 
Endpoint Mnemonic Trial inclusion criteria
MORTALITY  DD 
RECURRENCE-FREE SURVIVAL  RL  recurrence 
BREAST CANCER MORTALITY (not used) DDBC 
DISTANT RECURRENCE  DIST  recurrence, site 
MORTALITY FROM SECOND PRIMARY CANCER  DDPP  death cause 
MORTALITY FROM UNKNOWN CAUSES WITHOUT RECORDED RECURRENCE  DDUKRL 
MORTALITY FROM OTHER AND UNSPECIFIED NON-BREAST-CANCER CAUSES  NONBCUS  death cause 
CARDIAC MORTALITY  HEART  death cause 
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 AS FIRST EVENT  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 AS FIRST EVENT 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 AS FIRST EVENT OMITTING NON-CONTRALATERAL = (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 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 FROM NON-BREAST-CANCER AND UNKNOWN CAUSES WITHOUT RECURRENCE  NONBCUK 
54  MORTALITY OMITTING DEATHS FROM NON-BREAST-CANCER AND UNKNOWN CAUSES WITHOUT RECURRENCE = (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

BC 1995 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.

DDBC: BREAST CANCER MORTALITY

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).

ENDO: 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).

PP: 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 1995 strata

Stratification Mnemonic Structure
Unstratified 
Entry Age  50 
Stratum Abbreviation
Entry age less than 50  Age < 50 
Entry age 50 or more  Age 50+ 
 
Entry Age 
Stratum Abbreviation
Entry age less than 40  Age < 40 
Entry age 40 - 49  Age 40 - 49 
Entry age 50 - 59  Age 50 - 59 
Entry age 60 - 69  Age 60 - 69 
Entry age 70 or more  Age 70+ 
Entry age unknown  Age unknown 
 
Regrouping 8 of Entry Age  -3 
Stratum Abbreviation
Entry age less than 40  Age < 40 
Entry age 40 - 49  Age 40 - 49 
Entry age 50 - 59  Age 50 - 59 
Entry age 60 or more  Age 60+ 
Entry age unknown  Age unknown 
 
Regrouping 29 of Entry Age  -4 
Stratum Abbreviation
Entry age less than 50  Age < 50 
Entry age 50 - 59  Age 50 - 59 
Entry age 60 or more  Age 60+ 
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
 
Nodal Status 
Stratum Abbreviation
N0, entry age less than 50  N0 < 50 
N-, entry age less than 50  N- < 50 
N1-3, entry age less than 50  N1-3 < 50 
N4+, entry age less than 50  N4+ < 50 
'Other' nodal status, entry age less than 50  N+/N? < 50 
N0, entry age 50 or more  N0 50+ 
N-, entry age 50 or more  N- 50+ 
N1-3, entry age 50 or more  N1-3 50+ 
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
N0  N0 
N-  N- 
N1-3  N1-3 
N4+  N4+ 
'Other' nodal status  N+/N? 
 
Regrouping 2 of Nodal Status  -2 
Stratum Abbreviation
N0/N-  N0/N- 
N1-3  N1-3 
N+/N?  N+/N? 
N4+  N4+ 
 
Regrouping 3 of Nodal Status  -5 
Stratum Abbreviation
N0/N-, entry age less than 50  N0/N- <50 
N+, entry age less than 50  N+/N? <50 
N0/N-, entry age 50 or more  N0/N- 50+ 
N+, entry age 50 or more  N+/N? 50+ 
 
E.R. Status 
Stratum Abbreviation
ER-poor, entry age less than 50  ERpoor < 50 
ER unknown, entry age less than 50  ER? < 50 
ER+, entry age less than 50  ER+ < 50 
ER++, entry age less than 50  ER++ < 50 
ER-poor, entry age 50 or more  ERpoor 50+ 
ER unknown, entry age 50 or more  ER? 50+ 
ER+, entry age 50 or more  ER+ 50+ 
ER++, entry age 50 or more  ER++ 50+ 
 
Regrouping 4 of E.R. Status  -1 
Stratum Abbreviation
ER-poor  ERpoor 
ER unknown  ER? 
ER+  ER+ 
ER++  ER++ 
 
Regrouping 5 of E.R. Status  -4 
Stratum Abbreviation
ER-poor, entry age less than 50  ERpoor <50 
ER unknown, entry age less than 50  ER? <50 
ER+, entry age less than 50  ER+ <50 
ER-poor, entry age 50 or more  ERpoor 50+ 
ER unknown, entry age 50 or more  ER? 50+ 
ER+, entry age 50 or more  ER+ 50+ 
 
Regrouping 12 of E.R. Status  -2 
Stratum Abbreviation
ER-poor  ERpoor 
ER unknown  ER? 
ER+  ER+ 
 
Regrouping 14 of E.R. Status  -3 
Stratum Abbreviation
ER-poor, entry age less than 50  ERpoor <50 
ER+/unknown, entry age less than 50  ER+/? <50 
ER-poor, entry age 50 or more  ERpoor 50+ 
ER+/unknown, entry age 50 or more  ER+/? 50+ 
 
Regrouping 15 of E.R. Status  -3 
Stratum Abbreviation
ER-poor  ERpoor 
ER+/unknown  ER+/? 
 
P.R. Status 
Stratum Abbreviation
PR-poor, entry age less than 50  PRpoor < 50 
PR unknown, entry age less than 50 PR? < 50 
PR+, entry age less than 50  PR+ < 50 
PR++, entry age less than 50  PR++ < 50 
PR-poor, entry age 50 or more  PRpoor 50+ 
PR unknown, entry age 50 or more  PR? 50+ 
7 PR+, entry age 50 or more  PR+ 50+ 
PR++, entry age 50 or more  PR++ 50+ 
 
Regrouping 6 of P.R. Status  -1 
Stratum Abbreviation
PR-poor  PRpoor 
PR unknown  PR? 
PR+  PR+ 
PR++  PR++ 
 
Regrouping 7 of P.R. Status  -4 
Stratum Abbreviation
PR-poor, entry age less than 50  PRpoor <50 
PR unknown, entry age less than 50  PR? <50 
PR+, entry age less than 50  PR+ <50 
4 PR-poor, entry age 50 or more  PRpoor 50+ 
PR unknown, entry age 50 or more  PR? 50+ 
PR+, entry age 50 or more  PR+ 50+ 
 
Regrouping 13 of P.R. Status  -2 
Stratum Abbreviation
PR-poor  PRpoor 
PR unknown  PR? 
PR+  PR+ 
 
Regrouping 16 of P.R. Status  -3 
Stratum Abbreviation
PR-poor, entry age less than 50  PRpoor <50 
PR+/unknown, entry age less than 50  PR+/? <50 
PR-poor, entry age 50 or more  PRpoor 50+ 
PR+/unknown, entry age 50 or more  PR+/? 50+ 
 
Regrouping 17 of P.R. Status  -5 
Stratum Abbreviation
PR-poor  PRpoor 
PR+/unknown  PR+/? 
 
Entry Age and Menop. Status 
Stratum Abbreviation
Pre- and perimenopausal, entry age less than 50  Pre/Peri < 50 
Postmenopausal, entry age less than 50  Post < 50 
Pre- and perimenopausal, entry age 50 - 59  Pre/Peri 50-59 
Postmenopausal, entry age 50 - 59  Post 50-59 
All menopausal status, entry age 60 - 69  All 60-69 
All menopausal status, entry age 70 or more  All 70+ 
 
Regrouping 31 of Entry Age and Menop. Status  -4 
Stratum Abbreviation
Pre- and perimenopausal, entry age less than 50  Pre/Peri < 50 
Postmenopausal, entry age less than 50  Post < 50 
Pre- and perimenopausal, entry age 50 - 59  Pre/Peri 50-59 
Postmenopausal, entry age 50 - 59  Post 50-59 
All menopausal status, entry age 60 or more  All 60+ 
 
Nodal Status  NN 
Stratum Abbreviation
N0 clearance, entry age less than 50  N0 clear < 50 
N+ clearance, entry age less than 50  N+ clear < 50 
N- sampling/clinical, entry age less than 50  N- sam/clin <50 
N+ sampling/clinical, entry age less than 50  N+ sam/clin <50 
N unknown, entry age less than 50  N? < 50 
N0 clearance, entry age 50 or more  N0 clear 50+ 
N+ clearance, entry age 50 or more  N+ clear 50+ 
N- sampling/clinical, entry age 50 or more  N- sam/clin 50+ 
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
N0 clearance  N0 clearance 
N+ clearance  N+ clearance 
N- sampling/clinical  N- sample/clin. 
N+ sampling/clinical  N+ sample/clin. 
N unknown  N unknown 
 
Entry Age and Nodal Status  AN 
Stratum Abbreviation
Entry age less than 40, N0/N-  < 40, N0/N- 
Entry age 40 - 49, N0/N-  40 - 49, N0/N- 
Entry age 50 - 59, N0/N-  50 - 59, N0/N- 
Entry age 60 - 69, N0/N-  60 - 69, N0/N- 
Entry age 70+, N0/N-  70+, N0/N- 
Entry age less than 40, N+/N?  < 40, N+/N? 
Entry age 40 - 49, N+/N?  40 - 49, N+/N? 
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
Entry age less than 40, N0/N-  < 40, N0/N- 
Entry age 40 - 49, N0/N-  40 - 49, N0/N- 
Entry age 50 - 59, N0/N-  50 - 59, N0/N- 
Entry age 60+, N0/N-  60+, N0/N- 
Entry age less than 40, N+/N?  < 40, N+/N? 
Entry age 40 - 49, N+/N?  40 - 49, N+/N? 
Entry age 50 - 59, N+/N?  50 - 59, N+/N? 
Entry age 60+, N+/N?  60+, N+/N? 
 
Regrouping 36 of Entry Age and Nodal Status  -3 
Stratum Abbreviation
Entry age less than 50, N0/N-  < 50, N0/N- 
Entry age 50 - 59, N0/N-  50 - 59, N0/N- 
Entry age 60 - 69, N0/N-  60 - 69, N0/N- 
Entry age 70+, N0/N-  70+, N0/N- 
Entry age less than 50, N+/N?  < 50, N+/N? 
Entry age 50 - 59, N+/N?  50 - 59, N+/N? 
Entry age 60 - 69, N+/N?  60 - 69, N+/N? 
Entry age 70+, N+/N?  70+, N+/N? 
 
Regrouping 30 of Entry Age and Nodal Status  -4 
Stratum Abbreviation
Entry age less than 50, N0/N-  < 50, N0/N- 
Entry age 50 - 59, N0/N-  50 - 59, N0/N- 
Entry age 60+, N0/N-  60+, N0/N- 
Entry age less than 50, N+/N?  < 50, N+/N? 
Entry age 50 - 59, N+/N?  50 - 59, N+/N? 
Entry age 60+, N+/N?  60+, N+/N? 
 
Regrouping 11 of Entry Age and Nodal Status  -5 
Stratum Abbreviation
N0/N-  N0/N- 
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?
 
Nodal Status (pathological overrides clinical where both available) PN 
Stratum Abbreviation
N0 clearance, entry age less than 50  N0 clear < 50 
N+ clearance, entry age less than 50  N+ clear < 50 
N- sampling/clinical, entry age less than 50  N- sample/clin <50 
N+ sampling/clinical, entry age less than 50  N+ sample/clin <50 
N unknown, entry age less than 50  N? < 50 
N0 clearance, entry age 50 or more  N0 clear 50+ 
N+ clearance, entry age 50 or more  N+ clear 50+ 
N- sampling/clinical, entry age 50 or more  N- sample/clin 50+ 
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
N0 clearance  N0 clearance 
N+ clearance  N+ clearance 
N- sampling/clinical  N- sample/clin. 
N+ sampling/clinical  N+ sample/clin. 
N unknown  N unknown 
 
10  Nodal Status  N2 
Stratum Abbreviation
N0 clearance  N0 clearance 
N+ clearance  N+ clearance 
N- sampling  N- sampling 
N+ sampling  N+ sampling 
N- clinical  N- clinical 
N+ clinical  N+ clinical 
N- unk. method  N- unk. method 
N+ unk. method  N+ unk. method 
N unknown  N unknown 
 
11  Entry Age and Menop. Status  M2
Stratum Abbreviation
All menopausal status, entry age less than 40  All < 40 
Pre- and perimenopausal, entry age 40 - 49  Pre/Peri 40-49 
Postmenopausal, entry age 40 - 49  Post 40-49 
Pre- and perimenopausal, entry age 50 - 59  Pre/Peri 50-59 
Postmenopausal, entry age 50 - 59  Post 50-59 
All menopausal status, entry age 60 - 69  All 60-69 
All menopausal status, entry age 70 or more  All 70+ 
 
12  Nodal and E.R. Status  NE 
Stratum Abbreviation
N0/N-, ER-poor, entry age less than 50  N0/N- ERpoor < 50 
N0/N-, ER unknown, entry age less than 50  N0/N- ER? < 50 
N0/N-, ER+, entry age less than 50  N0/N- ER+ < 50 
N+/N?, ER-poor, entry age less than 50  N+/N? ERpoor < 50 
N+/N?, ER unknown, entry age less than 50  N+/N? ER? < 50 
N+/N?, ER+, entry age less than 50  N+/N? ER+ < 50 
N0/N-, ER-poor, entry age 50 or more  N0/N- ERpoor 50+ 
N0/N-, ER unknown, entry age 50 or more  N0/N- ER? 50+ 
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
N0/N-, ER-poor  N0/N- ERpoor 
N0/N-, ER unknown  N0/N- ER? 
N0/N-, ER+  N0/N- ER+ 
N+/N?, ER-poor  N+/N? ERpoor 
N+/N?, ER unknown  N+/N? ER? 
N+/N?, ER+  N+/N? ER+ 
 
Regrouping 20 of Nodal and E.R. Status  -3 
Stratum Abbreviation
N0/N-, ER-poor, entry age less than 50  N0/N- ERpoor < 50 
N0/N-, ER+/unknown, entry age less than 50  N0/N- ER+/? < 50 
N+/N?, ER-poor, entry age less than 50  N+/N? ERpoor < 50 
N+/N?, ER+/unknown, entry age less than 50  N+/N? ER+/? < 50 
N0/N-, ER-poor, entry age 50 or more  N0/N- ERpoor 50+ 
N0/N-, ER+/unknown, entry age 50 or more  N0/N- ER+/? 50+ 
N+/N?, ER-poor, entry age 50 or more  N+/N? ERpoor 50+ 
N+/N?, ER+/unknown, entry age 50 or more  N+/N? ER+/? 50+ 
 
Regrouping 22 of Nodal and E.R. Status  -5 
Stratum Abbreviation
N0/N-, ER-poor  N0/N- ERpoor 
N0/N-, ER+/unknown  N0/N- ER+/? 
N+/N?, ER-poor  N+/N? ERpoor 
N+/N?, ER+/unknown  N+/N? ER+/? 
 
13  Nodal and P.R. Status  NP 
Stratum Abbreviation
N0/N-, PR-poor, entry age less than 50  N0/N- PRpoor < 50 
N0/N-, PR unknown, entry age less than 50  N0/N- PR? < 50 
N0/N-, PR+, entry age less than 50  N0/N? PR+ < 50
N+/N?, PR-poor, entry age less than 50  N+/N? PRpoor < 50 
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 
N0/N-, PR-poor, entry age 50 or more  N0/N- PRpoor 50+ 
N0/N-, PR unknown, entry age 50 or more  N0/N- PR? 50+ 
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
N0/N-, PR-poor  N0/N- PRpoor 
N0/N-, PR unknown  N0/N- PR? 
N0/N-, PR+  N0/N? PR+ 
N+/N?, PR-poor  N+/N? PRpoor 
N+/N?, PR unknown  N+/N? PR? 
N+/N?, PR+  N+/N? PR+ 
 
Regrouping 21 of Nodal and P.R. Status  -3 
Stratum Abbreviation
N0/N-, PR-poor, entry age less than 50  N0/N- PRpoor < 50 
N0/N-, PR+/unknown, entry age less than 50  N0/N- PR+/? < 50 
N+/N?, PR-poor, entry age less than 50  N+/N? PRpoor < 50 
N+/N?, PR+/unknown, entry age less than 50  N+/N? PR+/? < 50 
N0/N-, PR-poor, entry age 50 or more  N0/N- PRpoor 50+ 
N0/N-, PR+/unknown, entry age 50 or more  N0/N- PR+/? 50+ 
N+/N?, PR-poor, entry age 50 or more  N+/N? PRpoor 50+ 
N+/N?, PR+/unknown, entry age 50 or more  N+/N? PR+/? 50+ 
 
Regrouping 23 of Nodal and P.R. Status  -5 
Stratum Abbreviation
N0/N-, PR-poor  N0/N- PRpoor 
N0/N-, PR+/unknown  N0/N- PR+/? 
N+/N?, PR-poor  N+/N? PRpoor 
N+/N?, PR+/unknown  N+/N? PR+/? 
 
14  Entry Age and E.R. Status  AE 
Stratum Abbreviation
Entry age less than 40, ER-poor  < 40, ERpoor 
Entry age 40 - 44, ER-poor  40 - 44, ERpoor 
Entry age 45 - 49, ER-poor  45 - 49, ERpoor 
Entry age 50 - 54, ER-poor  50 - 54, ERpoor 
Entry age 55 - 59, ER-poor  55 - 59, ERpoor 
Entry age 60 - 69, ER-poor  60 - 69, ERpoor 
Entry age 70 or more, ER-poor  70+, ERpoor 
Entry age less than 40, ER unknown  < 40, ER? 
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
Entry age less than 50, ER-poor  < 50, ERpoor 
Entry age 50 - 59, ER-poor  50 - 59, ERpoor 
Entry age 60 or more, ER-poor  60+, ERpoor 
Entry age less than 50, ER unknown  < 50, ER? 
Entry age 50 - 59, ER unknown  50 - 59, ER? 
Entry age 60 or more, ER unknown  60+, ER? 
Entry age less than 50, ER+  < 50, ER+ 
Entry age 50 - 59, ER+  50 - 59, ER+ 
Entry age 60 or more, ER+  60+, ER+ 
 
Regrouping 19 of Entry Age and E.R. Status  -3 
Stratum Abbreviation
Entry age less than 40, ER-poor  < 40, ERpoor 
Entry age 40 - 44, ER-poor  40 - 44, ERpoor 
Entry age 45 - 49, ER-poor  45 - 49, ERpoor 
Entry age 50 - 54, ER-poor  50 - 54, ERpoor 
Entry age 55 - 59, ER-poor  55 - 59, ERpoor 
Entry age 60 - 69, ER-poor  60 - 69, ERpoor 
Entry age 70 or more, ER-poor  70+, ERpoor 
Entry age less than 40, ER+/unknown  < 40, ER+/? 
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
Entry age less than 50, ER-poor  < 50, ERpoor 
Entry age 50 - 59, ER-poor  50 - 59, ERpoor 
Entry age 60 - 69, ER-poor  60 - 69, ERpoor 
Entry age 70 or more, ER-poor  70+, ERpoor 
Entry age less than 50, ER+/unknown  < 50, ER+/? 
Entry age 50 - 59, ER+/unknown  50 - 59, ER+/? 
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
Entry age less than 40, ER-poor  < 40, ERpoor 
Entry age 40 - 49, ER-poor  40 - 49, ERpoor 
Entry age 50 - 59, ER-poor  50 - 59, ERpoor 
Entry age 60 - 69, ER-poor  60 - 69, ERpoor 
Entry age 70 or more, ER-poor  70+, ERpoor 
Entry age less than 40, ER+/unknown  < 40, ER+/? 
Entry age 40 - 49, ER+/unknown  40 - 49, ER+/? 
Entry age 50 - 59, ER+/unknown  50 - 59, ER+/? 
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
Entry age less than 50, ER-poor  < 50, ERpoor 
Entry age 50 - 59, ER-poor  50 - 59, ERpoor 
Entry age 60 - 69, ER-poor  60 - 69, ERpoor 
Entry age 70 or more, ER-poor  70+, ERpoor 
5 Entry age less than 50, ER unknown  < 50, ER? 
Entry age 50 - 59, ER unknown  50 - 59, ER? 
Entry age 60 - 69, ER unknown  60 - 69, ER? 
Entry age 70 or more, ER unknown  70+, ER? 
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
Entry age less than 40, ER-poor  < 40, ERpoor 
Entry age 40 - 49, ER-poor  40 - 49, ERpoor 
Entry age 50 - 59, ER-poor  50 - 59, ERpoor 
Entry age 60 - 69, ER-poor  60 - 69, ERpoor 
Entry age 70 or more, ER-poor  70+, ERpoor 
Entry age less than 40, ER unknown  < 40, ER? 
Entry age 40 - 49, ER unknown  40 - 49, ER? 
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
ER-poor, PR-poor, entry age less than 50  ERpoor PRpoor < 50 
ER-poor, PR unknown, entry age less than 50  ERpoor PR? < 50 
ER-poor, PR+, entry age less than 50  ERpoor PR+ < 50 
ER unknown, PR-poor, entry age less than 50  ER? PRpoor < 50 
ER unknown, PR unknown, entry age less than 50  ER? PR? < 50 
ER unknown, PR+, entry age less than 50  ER? PR+ < 50 
ER+, PR-poor, entry age less than 50  ER+ PRpoor < 50 
ER+, PR unknown, entry age less than 50  ER+ PR? < 50 
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
ER-poor, PR-poor  ERpoor PRpoor 
ER-poor, PR unknown  ERpoor PR? 
ER-poor, PR+  ERpoor PR+ 
ER unknown, PR-poor  ER? PRpoor 
ER unknown, PR unknown  ER? PR? 
ER unknown, PR+ ER? PR+ 
ER+, PR-poor ER+ PRpoor 
ER+, PR unknown  ER+ PR? 
ER+, PR+  ER+ PR+ 
 
Regrouping 27 of E.R. and P.R. Status  -5 
Stratum Abbreviation
ER-poor, PR-poor  ERpoor PRpoor 
ER-poor, PR+/unknown  ERpoor PR+/? 
ER+/unknown, PR-poor  ER+/? PRpoor 
ER+/unknown, PR+/unknown  ER+/? PR+/? 
 
16  E.R. and Menop. Status  EM 
Stratum Abbreviation
ER-poor, all menopausal status, entry age less than 40  ERpoor < 40 
ER-poor, pre- and perimenop., entry age 40 - 49  ERpoorPre/Peri 40-49 
ER-poor, postmenopausal, entry age 40 - 49  ERpoor Post 40-49 
ER-poor, pre- and perimenop., entry age 50 - 59  ERpoorPre/Peri 50-59 
ER-poor, postmenopausal, entry age 50 - 59  ERpoor Post 50-59 
ER-poor, all menopausal status, entry age 60 - 69  ERpoor 60-69 
ER-poor, all menop. status, entry age 70 or more  ERpoor 70+ 
ER+/unknown, all menop. status, entry less than 40  ER+/? < 40 
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
Entry age less than 40  Age < 40 
Entry age 40 - 44  Age 40 - 44 
Entry age 45 - 49  Age 45 - 49 
Entry age 50 - 54  Age 50 - 54 
Entry age 55 - 59  Age 55 - 59 
Entry age 60 - 69  Age 60 - 69 
Entry age 70 or more  Age 70+ 
Entry age unknown  Age unknown 
 
18  E.R. and Menop. Status  ME
Stratum Abbreviation
ER-poor, pre- and peri-, entry age less than 50  ERpoor Pre/Peri < 50 
ER-poor, postmenopausal, entry age less than 50  ERpoor Post < 50 
ER-poor, pre- and perimenop., entry age 50 - 59  ERpoorPre/Peri 50-59 
ER-poor, postmenopausal, entry age 50 - 59  ERpoor Post 50-59 
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+ 
ER+/unkn., pre- and peri-, entry age less than 50  ER+/? Pre/Peri < 50 
ER+/unknown, postmenop., entry age less than 50  ER+/? Post < 50 
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
N0 clearance, entry age less than 40  N0 clear < 40 
N+ clearance, entry age less than 40  N+ clear < 40 
N- sampling/clinical, entry age less than 40  N- sam/clin < 40 
N+ sampling/clinical, entry age less than 40  N+ sam/clin < 40 
N unknown, entry age less than 40  N? < 40 
N0 clearance, entry age 40 - 49  N0 clear 40-49 
N+ clearance, entry age 40 - 49  N+ clear 40-49 
N- sampling/clinical, entry age 40 - 49  N- sam/clin 40-49 
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 and E.R. Status  ANE 
Stratum Abbreviation
N0/N-, ER-poor, entry age less than 50  N0/N- ERpoor < 50 
N0/N-, ER unknown, entry age less than 50  N0/N- ER? < 50 
N0/N-, ER+, entry age less than 50  N0/N- ER+ < 50 
N+/N?, ER-poor, entry age less than 50  N+/N? ERpoor < 50 
N+/N?, ER unknown, entry age less than 50  N+/N? ER? < 50 
N+/N?, ER+, entry age less than 50  N+/N? ER+ < 50 
N0/N-, ER-poor, entry age 50 - 59  N0/N- ERpoor 50-59 
N0/N-, ER unknown, entry age 50 - 59  N0/N- ER? 50-59 
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 and E.R. Status -3 
Stratum Abbreviation
N0/N-, ER-poor, entry age less than 50  N0/N- ERpoor < 50 
N0/N-, ER+/unknown, entry age less than 50  N0/N- ER+/? < 50 
N+/N?, ER-poor, entry age less than 50  N+/N? ERpoor < 50 
N+/N?, ER+/unknown, entry age less than 50  N+/N? ER+/? < 50 
N0/N-, ER-poor, entry age 50 - 59  N0/N- ERpoor 50-59 
N0/N-, ER+/unknown, entry age 50 - 59  N0/N- ER+/? 50-59 
N+/N?, ER-poor, entry age 50 - 59  N+/N? ERpoor 50-59 
N+/N?, ER+/unknown, entry age 50 - 59  N+/N? ER+/? 50-59 
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 and 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 and 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+
 
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
 

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[End of document, updated to 2 August 2002]