LS variable metadata
Variable: MADUMTNB
Table: NBIR
Short description: Duration of parents' marriage (months since anniversary) at new birth on LS date.
Full description:  
Coding notes: 00-11 = Completed months since last anniversary of marriage
space= Birth outside marriage
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
Notes:  
Units of measurement:  
Source: Draft entry for Births (F orm 309): derived from Question 1 and confidential particulars Question 3
Former name of variable: MADUMTBNB
Derived: N
Derivation: Not available
Subject:  
Date range: From: 19870101 To: 19921231 
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, pp94-95 (general details), pp99-101 (comparability of data), pp109-115 (data quality).