Related Variables
| ai_all |
Arousal Index: number of arousals per hour of sleep from type I polysomnography
Total number of arousals per hour of sleep. Ratio of count of arousals to total sleep time in hours. |
Sleep Monitoring/Polysomnography/Arousal | |
| ai_rem | Arousal Index (REM): number of arousals per hour of REM sleep from type I polysomnography | Sleep Monitoring/Polysomnography/Arousal | |
| position | Sleep Diary: position slept in most during study | Sleep Monitoring/Polysomnography/Evening and Morning Survey |