Related Variables

oai0p Obstructive apnea index (all obstructives with all desaturations)

Obstructive apnea index [(total number of obstructive apneas associated with all desaturations) / (hours of sleep)]. will be missing if total sleep time is 0.

Sleep/Polysomnography/Respiratory Events/Indexes
omahi3 CHAT AHI (obstructive apneas all desaturations, mixed apneas all desaturations, plus hypopneas with 3% or arousal) no centrals

CHAT apnea hypopnea index {[(total number of obstructive apneas) + (total number of mixed apneas) + (total number of hypopneas associated with >= 3% desaturation or arousal)] / (hours of sleep)}. will be missing if total sleep time is 0.

Sleep/Polysomnography/Respiratory Events/Indexes