LS variable metadata
Variable: MOBIMTNB
Table: NBIR
Short description: Month of birth of mother of new birth on sample date.
Full description:  
Coding notes: 01-12 = January - December
From 1993 onwards, extra code
-7 = incomplete or missing data
Units of measurement:  
Source: Draft entry for Births (Form 309): confidential particulars Question 2
Former name of variable: MOBIMTFNB
Derived: N
Derivation: Not available
Date range:  
Keyword: Age
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).