Related Variables

ai_all Arousal Index: Number of arousals per hour of sleep from type I polysomnography

All arousals were scored but only arousals that started in epoch of sleep are included in the arousal index calculations.

[(Total number of arousals) / (hours of sleep)]

Sleep Monitoring/Polysomnography/Arousals
ai_nrem Arousal Index (NREM): number of arousals per hour of NREM sleep from type I polysomnography Sleep Monitoring/Polysomnography/Arousals