Related Variables

rdim0pa Apnea-Hypopnea Index: (Apneas with no oxygen desaturation threshold used only with arousal + hypopneas with > 50% flow reduction and with no oxygen desaturation used only with arousal) / hour of sleep from type I polysomnography

[(total number of apneas and hypopneas with arousal) / (hours of sleep)]

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cent_obs_ratioa Ratio of the number of central apneas with no oxygen desaturation threshold used or with arousal to the number of obstructive apneas with no oxygen desaturation threshold used or with arousal from type I polysomnography Sleep Monitoring/Polysomnography/Respiratory Event Counts