BHPS Documentation and Questionnaires
Record Type kchildad
| khid | household identification number |
| kpno | person number |
| klacbm | month of birth – adopted child |
| klacby4 | year of birth – adopted child |
| klacsx | sex of adopted child |
| klacst | status of adopted child |
| klacyb4 | year adopted child joined resp. hh |
| klaclv | adopted child still lives in resp. hh |
| klacyd4 | year adopted child died |
| klacal | age adopted child left resp. hh |
| klacno | adopted child number |
| pid | cross-wave person identifier |
| pidp | Cross-wave person identifier (UKHLS) |