Related Variables

normalized1 Apnea-Hypopnea Index (AHI) normalized (improved) between baseline and follow-up

Indicates an OMAHI3 <= 2 and OAI0P <= 1 at follow-up, whereas one or both of these thresholds were exceeded at baseline.

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
hnrba3 Total number of hypopnea in NREM sleep in supine position : hypopneas with > 50% flow reduction and with >= 3% oxygen desaturation or with arousal from type I polysomnography Sleep Monitoring/Polysomnography/Respiratory Event Counts
hnroa3 Total number of hypopnea in NREM sleep in non-supine position : hypopneas with > 50% flow reduction and with >= 3% oxygen desaturation or with arousal from type I polysomnography Sleep Monitoring/Polysomnography/Respiratory Event Counts
hremba3 Total number of hypopnea in REM sleep in supine position : hypopneas with > 50% flow reduction and with >= 3% oxygen desaturation or with arousal from type I polysomnography Sleep Monitoring/Polysomnography/Respiratory Event Counts
hroa3 Total number of hypopnea in REM sleep in non-supine position : hypopneas with > 50% flow reduction and with >= 3% oxygen desaturation or with arousal from type I polysomnography Sleep Monitoring/Polysomnography/Respiratory Event Counts
manrbp Total number of mixed apnea in NREM sleep in supine position: Mixed apneas with no oxygen desaturation threshold used and with or without arousal from type I polysomnography Sleep Monitoring/Polysomnography/Respiratory Event Counts
manrop Total number of mixed apnea in NREM sleep in non-supine position: Mixed apneas with no oxygen desaturation threshold used and with or without arousal from type I polysomnography Sleep Monitoring/Polysomnography/Respiratory Event Counts
marbp Total number of mixed apnea in REM sleep in supine position: Mixed apneas with no oxygen desaturation threshold used and with or without arousal from type I polysomnography Sleep Monitoring/Polysomnography/Respiratory Event Counts
marop Total number of mixed apnea in REM sleep in non-supine position: Mixed apneas with no oxygen desaturation threshold used and with or without arousal from type I polysomnography Sleep Monitoring/Polysomnography/Respiratory Event Counts
oanbp Total number of obstructive apnea in NREM sleep in supine position: Obstructive apneas with no oxygen desaturation threshold used and with or without arousal from type I polysomnography Sleep Monitoring/Polysomnography/Respiratory Event Counts
oanop Total number of obstructive apnea in NREM sleep in non-supine position: Obstructive apneas with no oxygen desaturation threshold used and with or without arousal from type I polysomnography Sleep Monitoring/Polysomnography/Respiratory Event Counts
oarbp Total number of obstructive apnea in REM sleep in supine position: Obstructive apneas with no oxygen desaturation threshold used and with or without arousal from type I polysomnography Sleep Monitoring/Polysomnography/Respiratory Event Counts
oarop Total number of obstructive apnea in REM sleep in non-supine position: Obstructive apneas with no oxygen desaturation threshold used and with or without arousal from type I polysomnography Sleep Monitoring/Polysomnography/Respiratory Event Counts
eliginelig Eligibility status by Polysomnography (PSG)

Ineligible if omahi3 <2 and omai0p<1 or meets any of urgent criteria variables ahiov30=1, saO2lt90=1, unuhrou=1,unuhroth=1

Sleep Monitoring/Polysomnography/Signal Quality
slpprdp Total Sleep Duration: the interval between sleep onset time and lights on/out-bed time while the participant is asleep from type I polysomnography

Conventionally, this would be called total sleep time (TST) (i.e. total time spent in stage 1 or greater).

Sleep Monitoring/Polysomnography/Sleep Architecture