Related Variables

ahi Sleep Study: apnea hypopnea index

A subset of participants had home sleep test (Edentec) as well as in-lab polysomnography at visit 5.

Sleep Monitoring/Home Sleep Test
hnrbp4 Total number of hypopnea in NREM sleep in supine position : hypopneas with > 30% flow reduction and with >= 4% oxygen desaturation and with or without arousal from type I polysomnography Sleep Monitoring/Polysomnography/Respiratory Event Counts
hnrop4 Total number of hypopnea in NREM sleep in non-supine position : hypopneas with > 30% flow reduction and with >= 4% oxygen desaturation and with or without arousal from type I polysomnography Sleep Monitoring/Polysomnography/Respiratory Event Counts
hrembp4 Total number of hypopnea in REM sleep in supine position : hypopneas with > 30% flow reduction and with >= 4% oxygen desaturation and with or without arousal from type I polysomnography Sleep Monitoring/Polysomnography/Respiratory Event Counts
hrop4 Total number of hypopnea in REM sleep in non-supine position : hypopneas with > 30% flow reduction and with >= 4% oxygen desaturation 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
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