ahi_po_ap0uhp5x0u_f1t1 - Search - Sleep Data - National Sleep Research Resource

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Apnea-Hypopnea Index (Non-Supine): (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 in non-supine position from type I polysomnography

rdim0pns under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in CHAT variables

Non-supine Respiratory Disturbance Index (RDI) at all desaturations [(total number of apneas and hypopneas in non-supine body position) / (hours of sleep)]