LS variable metadata
Variable: MAOMYRBM
Table: LBSM
Short description: Age of sample mother at marriage (years).
Full description:  
Coding notes: 1971-1985:
15-55 = Age at marriage
space= Birth outside marriage
1986 onwards:
11-55 = Age at marriage (15-55 if mother's birthplace is UK)
space= Birth outside marriage
Note: 1971-1985:
Calculated using duration of marriage and age of mother at birth of child, both of which might have been imputed If nothing is imputed, age is calculated using date of marriage and date of birth of mother 1986-1989: Calculated using date of birth of mother and date of marriage. If age of mother is stated or imputed, instead of date of birth, age at marriage is calculated by subtracting duration of marriage from age at maternity 1990: Calculated using date of birth of mother and date of marriage. If age of mother is stated or imputed because year of birth of mother is not stated, age at marriage is calculated by subtracting duration of marriage from age at maternity.
Notes:  
Units of measurement:  
Source: Draft entry for Births (Form 309) Derived from confidential particulars Questions 2 and 3
Former name of variable: MAOMYRBBM
Derived: Y
Derivation: Not available
Subject:  
Date range:  
Keyword: Age Marital
Classification:  
Comparable variables for other individuals:  
Comparable variables for other times:  
Restricted: N
Data type: Text
Length of field: 2
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).