Related Variables

nsrr_avglvlsa Average oxygen saturation in sleep

Harmonized by the NSRR team. Source: :avgsat:

Harmonized/Polysomnography/Oxygen Satuartion
timeremp Percentage of REM sleep among total sleep duration from type I polysomnography

Conventionally, total sleep duration would be called total sleep time (TST).

[100*(number of minutes scored as REM) / (total sleep time)] * 100

Sleep Monitoring/Polysomnography/Sleep Architecture
times34p Percentage duration of sleep in stage 3/4 sleep from type I polysomnography

Conventionally, total sleep duration would be called total sleep time (TST).

[100*(number of minutes scored as stage 3-4 sleep)/(total sleep time)]

Sleep Monitoring/Polysomnography/Sleep Architecture
timest1p Percentage of stage 1 sleep among total sleep duration from type I polysomnography

Conventionally, total sleep duration would be called total sleep time (TST).

[100*(number of minutes scored as stage 1 sleep)/(total sleep time)]

Sleep Monitoring/Polysomnography/Sleep Architecture
timest2p Percentage of stage 2 sleep among total sleep duration from type I polysomnography

Conventionally, total sleep duration would be called total sleep time (TST).

[100*(number of minutes scored as stage 2 sleep)/(total sleep time)]

Sleep Monitoring/Polysomnography/Sleep Architecture