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tstrem under Sleep Monitoring/Polysomnography/Sleep Architecture in MSP variables
The ratio of time in rapid eye movement sleep (REM) to total sleep time, expressed as a percentage.
nsrr_pctdursp_s1 under Harmonized/Polysomnography/Sleep Architecture in CCSHS variables
Harmonized by the NSRR team. Source: :timest1p:
nsrr_pctdursp_s2 under Harmonized/Polysomnography/Sleep Architecture in CCSHS variables
Harmonized by the NSRR team. Source: :timest2p:
nsrr_pctdursp_s3 under Harmonized/Polysomnography/Sleep Architecture in CCSHS variables
Harmonized by the NSRR team. Source: :times34p:
nsrr_pctdursp_sr under Harmonized/Polysomnography/Sleep Architecture in CCSHS variables
Harmonized by the NSRR team. Source: :timeremp:
mseff under Sleep Monitoring/Actigraphy in CCSHS variables
Sleep efficiency is the proportion of sleep duration (i.e. total sleep time, tst) in total rest period (i.e. rest interval) in main sleep. Sleep duration is the interval between sleep onset time and sleep offset time while asleep. In this study, rest interval is the same as in-bed period.
mseffend under Sleep Monitoring/Actigraphy in CCSHS variables
Sleep efficiency is the proportion of sleep duration (i.e. total sleep time, tst) in total rest period (i.e. rest interval) in main sleep. Sleep duration is the interval between sleep onset time and sleep offset time while asleep. In this study, rest interval is the same as in-bed period.
mseffwk under Sleep Monitoring/Actigraphy in CCSHS variables
Sleep efficiency is the proportion of sleep duration (i.e. total sleep time, tst) in total rest period (i.e. rest interval) in main sleep. Sleep duration is the interval between sleep onset time and sleep offset time while asleep. In this study, rest interval is the same as in-bed period.
mslp under Sleep Monitoring/Actigraphy in CCSHS variables
Conventionally this variable would be called total sleep time (TST).
mslpend under Sleep Monitoring/Actigraphy in CCSHS variables
Conventionally this variable would be called total sleep time (TST).
mslpwk under Sleep Monitoring/Actigraphy in CCSHS variables
Conventionally this variable would be called total sleep time (TST).
slp_eff under Sleep Monitoring/Polysomnography/Sleep Architecture in CCSHS variables
Sleep duration is the interval between sleep onset time and lights on/out-bed time while asleep (i.e. total sleep time, TST), while in-bed period is the interval between lights off/in-bed time and lights on/out-bed time (i.e. time in bed, TIB). [100*(total sleep time) / (total time in bed)]
slp_maint_eff under Sleep Monitoring/Polysomnography/Sleep Architecture in CCSHS variables
Sleep duration (i.e., total sleep time, TST) is the interval between sleep onset and sleep offset time while asleep. Sleep period is the interval between sleep onset and sleep offset time.
slpprdp under Sleep Monitoring/Polysomnography/Sleep Architecture in CCSHS variables
Conventionally, this would be called total sleep time (TST) (i.e. total time spent in stage 1 or greater). Total time from lights out to lights on that is scored as sleep (rounded to nearest minute)
timeremp under Sleep Monitoring/Polysomnography/Sleep Architecture in CCSHS variables
Conventionally, total sleep duration would be called total sleep time (TST).[100*(number of minutes scored as REM) / (total sleep time)] * 100
times34p under Sleep Monitoring/Polysomnography/Sleep Architecture in CCSHS variables
Conventionally, total sleep duration would be called total sleep time (TST).[100*(number of minutes scored as stage 3-4 sleep)/(total sleep time)]
timest1p under Sleep Monitoring/Polysomnography/Sleep Architecture in CCSHS variables
Conventionally, total sleep duration would be called total sleep time (TST).[100*(number of minutes scored as stage 1 sleep)/(total sleep time)]
timest2p under Sleep Monitoring/Polysomnography/Sleep Architecture in CCSHS variables
Conventionally, total sleep duration would be called total sleep time (TST).[100*(number of minutes scored as stage 2 sleep)/(total sleep time)]
nsrr_pctdursp_s1 under Harmonized/Polysomnography/Sleep Architecture in CHAT variables
Harmonized by the NSRR team. Source: :timest1p:
nsrr_pctdursp_s2 under Harmonized/Polysomnography/Sleep Architecture in CHAT variables
Harmonized by the NSRR team. Source: :timest2p:
nsrr_pctdursp_s3 under Harmonized/Polysomnography/Sleep Architecture in CHAT variables
Harmonized by the NSRR team. Source: :times34p:
nsrr_pctdursp_sr under Harmonized/Polysomnography/Sleep Architecture in CHAT variables
Harmonized by the NSRR team. Source: :timeremp:
cai0p under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in CHAT variables
[(Total number of central apneas associated with all desaturations) / (hours of sleep)]. Will be missing if Total Sleep Time (TST) is 0.
oai0p under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in CHAT variables
Calculated - Summary metric of sleep disordered breathing events. will be missing if Total Sleep Time (TST) is 0.