LS variable metadata
Variable: MADUMTBM
Table: LBSM
Short description: Duration of current marriage (months since anniversary) at birth to sample mother.
Full description:  
Coding notes: 00-11 = Completed months since last anniversary of marriage
Blank if birth outside marriage
Notes: Calculated from date of birth of child and date of marriage of parents If the date of marriage of parents is imputed then day of marriage is taken as 16th
Units of measurement:  
Source: Draft entry for Births ( Form 309) derived from Question 1 and confidential particulars Question 3
Former name of variable: MADUNTBBM
Derived: N
Derivation: Not available
Subject:  
Date range:  
Keyword: Marital Fertility
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).