Related Variables

canbp Total number of central apnea in NREM sleep in supine position: Central apneas with no oxygen desaturation threshold used and with or without arousal from type I polysomnography Sleep Monitoring/Polysomnography/Respiratory Event Counts
canop Total number of central apnea in NREM sleep in non-supine position: Central apneas with no oxygen desaturation threshold used and with or without arousal from type I polysomnography Sleep Monitoring/Polysomnography/Respiratory Event Counts
carbp Total number of central apnea in REM sleep in supine position: Central apneas with no oxygen desaturation threshold used and with or without arousal from type I polysomnography Sleep Monitoring/Polysomnography/Respiratory Event Counts
carop Total number of central apnea in REM sleep in non-supine position: Central apneas with no oxygen desaturation threshold used and with or without arousal from type I polysomnography Sleep Monitoring/Polysomnography/Respiratory Event Counts
hnrba4 Total number of hypopnea in NREM sleep in supine position : hypopneas with > 50% flow reduction and with >= 4% oxygen desaturation or with arousal from type I polysomnography Sleep Monitoring/Polysomnography/Respiratory Event Counts
hnroa4 Total number of hypopnea in NREM sleep in non-supine position : hypopneas with > 50% flow reduction and with >= 4% oxygen desaturation or with arousal from type I polysomnography Sleep Monitoring/Polysomnography/Respiratory Event Counts
hremba4 Total number of hypopnea in REM sleep in supine position : hypopneas with > 50% flow reduction and with >= 4% oxygen desaturation or with arousal from type I polysomnography Sleep Monitoring/Polysomnography/Respiratory Event Counts
hroa4 Total number of hypopnea in REM sleep in non-supine position : hypopneas with > 50% flow reduction and with >= 4% oxygen desaturation or with 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