Related Variables

canbp4 Total number of central apnea in NREM sleep in supine position: Central apneas with >= 4% oxygen desaturation threshold used and with or without arousal from type II polysomnography Sleep Monitoring/Polysomnography/Respiratory Event Counts
canop4 Total number of central apnea in NREM sleep in non-supine position: Central apneas with >= 4% oxygen desaturation threshold used and with or without arousal from type II polysomnography Sleep Monitoring/Polysomnography/Respiratory Event Counts
carbp4 Total number of central apnea in REM sleep in supine position: Central apneas with >= 4% oxygen desaturation threshold used and with or without arousal from type II polysomnography Sleep Monitoring/Polysomnography/Respiratory Event Counts
carop4 Total number of central apnea in REM sleep in non-supine position: Central apneas with >= 4% oxygen desaturation threshold used and with or without arousal from type II polysomnography Sleep Monitoring/Polysomnography/Respiratory Event Counts
hnrbp4 Total number of hypopnea in NREM sleep in supine position: Hypopneas with >= 4% oxygen desaturation threshold used and with or without arousal from type II polysomnography Sleep Monitoring/Polysomnography/Respiratory Event Counts
hnrop4 Total number of hypopnea in NREM sleep in non-supine position: Hypopneas with >= 4% oxygen desaturation threshold used and with or without arousal from type II polysomnography Sleep Monitoring/Polysomnography/Respiratory Event Counts
hrembp4 Total number of hypopnea in REM sleep in supine position: Hypopneas with >= 4% oxygen desaturation threshold used and with or without arousal from type II polysomnography Sleep Monitoring/Polysomnography/Respiratory Event Counts
hrop4 Total number of hypopnea in REM sleep in non-supine position: Hypopneas with >= 4% oxygen desaturation threshold used and with or without arousal from type II polysomnography Sleep Monitoring/Polysomnography/Respiratory Event Counts
oanbp4 Total number of obstructive apnea in NREM sleep in supine position: Obstructive apneas with >= 4% oxygen desaturation and with or without arousal from type II polysomnography Sleep Monitoring/Polysomnography/Respiratory Event Counts
oanop4 Total number of obstructive apnea in NREM sleep in non-supine position: Obstructive apneas with >= 4% oxygen desaturation and with or without arousal from type II polysomnography Sleep Monitoring/Polysomnography/Respiratory Event Counts
oarbp4 Total number of obstructive apnea in REM sleep in supine position: Obstructive apneas with >= 4% oxygen desaturation and with or without arousal from type II polysomnography Sleep Monitoring/Polysomnography/Respiratory Event Counts
oarop4 Total number of obstructive apnea in REM sleep in non-supine position: Obstructive apneas with >= 4% oxygen desaturation and with or without arousal from type II polysomnography Sleep Monitoring/Polysomnography/Respiratory Event Counts
slpprdp Total Sleep Duration: the interval between sleep onset and sleep offset while the participant is asleep from type II polysomnography

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

Sleep Monitoring/Polysomnography/Sleep Architecture