LS variable metadata
Variable: MADUYRNB
Table: NBIR
Short description: Duration of parents' marriage (years) at new birth on sample date.
Full description:  
Coding notes: 00-99 = Duration of marriage in completed years
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
Units of measurement:  
Source: Draft entry for Births (Form 309): derived from Question 1 and confidential particulars Question 3
Former name of variable: MADUYRBNB
Derived: N
Derivation: Not available
Date range:  
Keyword: Marital Fertility
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).