BHPS Documentation and Questionnaires
Record Type kchildnt
| khid | household identification number |
| kpno | person number |
| klchbm | month of birth – natural child |
| klchby4 | year of birth – natural child |
| klchsx | sex of natural child |
| klchlv | natural child still lives in resp. hh |
| klchyd4 | year natural child died |
| klchal | age natural child left resp. hh |
| klncno | natural child number |
| pid | cross-wave person identifier |
| pidp | Cross-wave person identifier (UKHLS) |