LS variable metadata
Variable: MOAGMTBF
Table: LBSF
Short description: Age (months since last birthday) of mother at birth of child to sample father
Full description:  
Coding notes: 1971-1985:
00-11 = Completed months since last birthday
space= Age imputed, or Age (rather than date of birth) stated on the draft form in answer to confidential particulars Question 2
1986 onwards:
If age rather than date of birth is given on the original entry 'month' is assumed to be June.
Notes: Only births to sample fathers in 1971-78 and 1981 were linked to the LS
Units of measurement:  
Source: Draft entry for Births (Form 309) or draft entry for Stillbirths (Form 308): derived from Question 1 and Confidential particulars Question 2
Former name of variable: MOAGMTCBF
Derived: N
Derivation: Not available
Date range:  
Keyword: Age Fertility
Comparable variables for other individuals:  
Comparable variables for other times:  
Restricted: N
Data type: Numeric
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,p108 (general details), pp99-101 (comparability of data), p108 & p136 (data quality).