| pid |
cross-wave person identifier |
| pidp |
Cross-wave person identifier (UKHLS) |
| lewave |
last enumerated wave |
| lehid |
hid at last final enumeration |
| lepno |
pno at last final enumeration |
| lrio |
last recorded interview outcome |
| mstat |
sample membership status |
| yosm |
reason for osm status |
| ypsm |
reason for psm status |
| lcmstat |
wave mstat last changed |
| astat |
sample activity status |
| lcastat |
wave astat last changed |
| lksex |
last known sex |
| lkdobm |
last known date of birth – month |
| lkdoby |
last known date of birth – year |
| eint |
ever fully interviewed flag |
| lceint |
wave eint last changed |
| memorig |
sample origin: original bhps or echp |