LS variable metadata
Variable: NHSRYRIM
Table: IDFIx
Short description: National Health Service number (1971 - 1987): Year of registration of birth.
Full description: Applies to Infant Deaths of Births to Sample Mothers and Fathers, records 58 & 67
Coding notes: 1971-1975:
Blank
1976-1987:
M=1976
N=1977
O=1978
P=1979
Q=1980
R=1981
S=1982
T=1983
U=1984
V=1985
X=1986
Y=1987
1988 onwards:
See NHSREYIM.
Notes:  
Units of measurement:  
Source: Birth registration form 309
Former name of variable:  
Derived: N
Derivation: Not available
Subject:  
Date range:  
Keyword: Fertility
Classification:  
Comparable variables for other individuals:  
Comparable variables for other times:  
Restricted: N
Data type: Text
Length of field: 2