tst - Search - Sleep Data - National Sleep Research Resource

Percentage of stage 1 sleep among total sleep duration from type I polysomnography

pct_s1 under Sleep Monitoring/Polysomnography/Sleep Architecture in APOE variables

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

Percentage of stage 2 sleep among total sleep duration from type I polysomnography

pct_s2 under Sleep Monitoring/Polysomnography/Sleep Architecture in APOE variables

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

Percentage of stage 3 and 4 sleep among total sleep duration from type I polysomnography

pct_s3 under Sleep Monitoring/Polysomnography/Sleep Architecture in APOE variables

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

Total estimated sleep duration: the interval between sleep onset time and lights on/out-bed time while the participant is asleep from type III home sleep apnea test

ttldursp_f1t3 under Sleep Monitoring/Polysomnography/Sleep Architecture in NUMOM2B variables

Estimated sleep duration, providing an approximation of total sleep duration (i.e. total sleep time) inferred from analysis of non-EEG channels Zhao et al., 2017 (PMID:27707441)

Weekday Sleep Efficiency

wd_se under Sleep Questionnaires/Sleep Habits in ANSWERS variables

Item calculated based on combined review of Split week self-assessment of sleep survey (SASS-Y) and the Munich Chronotype Questionnaire (MCTQ). Search for all SASS-Y/MCTQ variables within this dataset

Weekend Sleep Efficiency

we_se under Sleep Questionnaires/Sleep Habits in ANSWERS variables

Oxygen Desaturation Index: Oxygen desaturation with >= 3% desat per hour of sleep from type I polysomnography

odi3evindex under Sleep Monitoring/Polysomnography/Oxygen Saturation in APOE variables

Derived using automated detection methods described in Koch et al. 2017.