Related Variables

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
omahi3b Supine CHAT AHI (obstructive apneas all desaturations, mixed apneas all desaturations, plus hypopneas with 3% or arousal)

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
omahi3nr Non-REM CHAT AHI (obstructive apneas all desaturations, mixed apneas all desaturations, plus hypopneas with 3% or arousal)

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
omahi3o Non-supine CHAT AHI (obstructive apneas all desaturations, mixed apneas all desaturations, plus hypopneas with 3% or arousal)

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
omahi3r REM CHAT AHI (obstructive apneas all desaturations, mixed apneas all desaturations, plus hypopneas with 3% or arousal)

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
omai0p CHAT OAI (obstructive/mixed apnea index all desaturations) no centrals Sleep/Polysomnography/Respiratory Events/Indexes
rdim0p Overall RDI at 0% desaturation

RDI at all desaturations [(total number of apneas and hypopneas) / (hours of sleep)]

Sleep/Polysomnography/Respiratory Events/Indexes
rdim0pns Overall non-supine RDI at 0% desaturation

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

Sleep/Polysomnography/Respiratory Events/Indexes
rdimnr0p Overall non-rem RDI at 0% desaturation

Non-REM RDI at all desaturations [(total number of apneas and hypopneas in non-REM sleep) / (hours of NREM sleep)]

Sleep/Polysomnography/Respiratory Events/Indexes