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Apnea-Hypopnea Index (Supine): (Apneas with >= 2% oxygen desaturation threshold used and with or without arousal+ hypopneas with > 50% flow reduction and with >= 2% oxygen desaturation used and with or without arousal) / hour of sleep in supine from type I polysomnography
rdim2ps
under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in
CHAT variables
[(total number of apneas and hypopneas in supine body position associated with >= 2% desaturation) / (hours of sleep)]
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