A13b. Do you have any older brothers or sisters who are still living?
If not the eldest child (A13a = code T)
[Question A13b was asked of persons who are not the eldest of siblings, per question A13a.]
[] Y Yes
[] T No
Column (2) through (5) Mother's status
The intention here is to ask about the birth mother of the relevant people.
Column (5) "Do you have an older brother or sister who is still living?"
Fill in the code according to the respondent's answer.