LS variable metadata
Variable: MAMOYRIM
Table: IDMI
Short description: Age of sample mother at marriage (years).
Full description:  
Coding notes: 11-55 = age at marriage
space= birth outside marriage
1971-85:
15+ = age at marriage
space= birth outside marriage
This is calculated using duration of marriage and age of mother at birth of child, both of which might have been imputed.
1986-1989:
11+ = age at marriage,
15+ if mother's birthplace is UK
Spaces = birth outside marriage
Calculated using date of birth of mother and date of marriage. If age of mother is stated, or imputed because date of mother is not stated, age at marriage is calculated by subtracting duration of marriage from age at maternity
1990 onwards:
11+ = age at marriage,
15+ if mother's birthplace is UK
Spaces = birth outside marriage
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) and draft entry for stillbirths (Form 308): derived from confidential particulars Questions 2 and 3
Former name of variable: MAMOYRBIM
Derived: N
Derivation: Not available
Subject:  
Date range:  
Keyword: 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), page 343 (death registration draft entry form), page 25 and page 96 (general details), pp. 99-104 (comparability), pp. 141-145 (data quality).