|Short description:||Place of birth of mother of child of sample father.|
A/ Within England and Wales - County (1st & 2nd digits) and County District of birth (3rd & 4th digits) (see 1971 Census Appendix 12), fifth digit='9'
B/ In Scotland - County and City (see Events Appendix 10), fifth digit='9'
C/ In Northern Ireland - County and County borough (see Events Appendix 10), fifth digit='9'
D/ Places outside UK - first two digits '99', third and fourth characters coded to country of birth 1W-9W (see 1981 Census Appendix 4 ),fifth digit blank
Last two characters coded to country of birth 1W-9W as above. First three characters set to Spaces (see 1981 Census Appendix 4)
|Notes:||Only births to sample fathers in 1971-78 and 1981 were linked to the LS.|
|Units of measurement:|
|Source:||Draft entry for live births (Form 309) or Draft entry for stillbirths (Form 308): Question 8|
|Former name of variable:||MOPLBIABF|
|Comparable variables for other individuals:|
|Comparable variables for other times:|
|Length of field:||5|
|Reference 1:||1971 Census Appendix 12a|
|Reference 2:||Events Appendix 10|
|Reference 3:||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).|