BHPS Documentation and Questionnaires
Record Type megoalt
| mhid | household identification number |
| mpno | ego’s person number |
| mopno | alter’s person number |
| mrel | relationship of mopno to mpno |
| msex | sex |
| mosex | alter’s sex |
| mlwstat | alter’s residence at last wave |
| mnwstat | alter’s residence at next wave |
| pid | cross-wave person identifier |
| pidp | Cross-wave person identifier (UKHLS) |
| mopid | alter’s cross-wave person identifier |