Related Variables
| visit |
Visit number
The Study of Osteoporotic Fractures (SOF) Visit where the data were collected/derived. |
Administrative | |
| slpprdp |
Total Sleep Duration: the interval between sleep onset and sleep offset while the participant is asleep from type II polysomnography
Conventionally this variable would be called total sleep time (TST)(i.e. total time spent in stage 1 or greater). |
Sleep Monitoring/Polysomnography/Sleep Architecture |