Histogram

Psg vs Average Duration of Apnea and Hypopnea Events: All apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with >= 3% oxygen desaturation or with arousal from type I polysomnography
N Mean StdDev Median Min Max Unknown Total
Overnight PSG 104 18.7 ± 4.2 18.6 10.3 31.1 2 106