Name
ahi_a0h4a
Label
Apnea-Hypopnea Index: (All apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with >= 4% oxygen desaturation or with arousal) / hour of sleep from type I polysomnography
Description
Calculated - Summary metric of sleep disordered breathing events.
Calculation
Units
number of events per hour
Type
numeric
Tags