Name
ahi_c0h3
Label
Central Apnea-Hypopnea Index: (Central apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 3% oxygen desaturation and with or without arousal) / hour of sleep from type II polysomnography
Description
Calculated - Summary metric of sleep disordered breathing events.
Calculation
ahi_c0h3 = 60 * (hrembp3 + hrop3 + hnrbp3 + hnrop3 + urbp3 + urop3 + unrbp3 + unrop3 + carbp + carop + canbp + canop) / slpprdp
Units
number of events per hour
Type
numeric
Tags