LS variable metadata
Variable: BIYRABM
Table: LBSM
Short description: Year of birth - birth to female LS member.
Full description:  
Coding notes: Year, in full 4-digit numeric form. This has been calculated by: (a) Subtracting one from year of registration if month of occurrence is greater than month of registration (b) Making year of registration the year of occurrence if month of occurrence is not greater than month of registration.
Units of measurement:  
Source: Derived from births to sample mothers source file (ie births from 1971 Census onwards to female LS members) Draft entry for births (Form 309) Question 1
Former name of variable:  
Derived: Y
Derivation: Not available
Date range:  
Keyword: Age Fertility
Comparable variables for other individuals:  
Comparable variables for other times:  
Restricted: N
Data type: Text
Length of field: 4
Reference 1: See LS Technical Volume (Hattersley and Creeser, 1995) p342 (live birth registration draft entry form), p345(record of live birth form), pp24-25, pp95-96 and p108 (general details), pp99-101 (comparability of data), p108 and pp125-136 (data quality).