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Percent of total sleep duration in stage 1 sleep from type I polysomnography
pctdursp_s1_f1t1 under Sleep Monitoring/Polysomnography in ABC variables
Sleep duration is the interval between sleep onset time and lights on/out-bed time while asleep, conventionally called total sleep time.
Percent of total sleep duration in stage 2 sleep from type I polysomnography
pctdursp_s2_f1t1 under Sleep Monitoring/Polysomnography in ABC variables
Sleep duration is the interval between sleep onset time and lights on/out-bed time while asleep, conventionally called total sleep time.
Percent of total sleep duration in stage 3 - 4 sleep from type I polysomnography
pctdursp_s3_f1t1 under Sleep Monitoring/Polysomnography in ABC variables
Sleep duration is the interval between sleep onset time and lights on/out-bed time while asleep, conventionally called total sleep time.
Percent of total sleep duration with oxygen saturation < 75% from type I polysomnography
pctdursp_salt75_f1t1 under Sleep Monitoring/Polysomnography in ABC variables
Sleep duration is the interval between sleep onset time and lights on/out-bed time while asleep, conventionally called total sleep time.
Percent of total sleep duration with oxygen saturation < 80% from type I polysomnography
pctdursp_salt80_f1t1 under Sleep Monitoring/Polysomnography in ABC variables
Sleep duration is the interval between sleep onset time and lights on/out-bed time while asleep, conventionally called total sleep time.
Percent of total sleep duration with oxygen saturation < 85% from type I polysomnography
pctdursp_salt85_f1t1 under Sleep Monitoring/Polysomnography in ABC variables
Sleep duration is the interval between sleep onset time and lights on/out-bed time while asleep, conventionally called total sleep time.
Percent of total sleep duration with oxygen saturation < 90% from type I polysomnography
pctdursp_salt90_f1t1 under Sleep Monitoring/Polysomnography in ABC variables
Sleep duration is the interval between sleep onset time and lights on/out-bed time while asleep, conventionally called total sleep time.
Total sleep duration from type I polysomnography
ttldursp_f1t1 under Sleep Monitoring/Polysomnography in ABC variables
Sleep duration is the interval between sleep onset time and lights on/out-bed time while asleep, conventionally called total sleep time
Total Sleep Duration (REM): the interval between sleep onset time and lights on/out-bed time while the participant is in REM sleep from type I polysomnography
minremp under Sleep Monitoring/Polysomnography/Sleep Architecture in CFS variables
Total time spent in REM sleep
Total Sleep Duration (REM): the interval between sleep onset time and lights on/out-bed time while the participant is in REM sleep from type I polysomnography
timerem under Sleep Monitoring/Polysomnography/Sleep Architecture in CFS variables
Total time spent in REM sleep
Sleep onset time from type II polysomnography
postontp under Sleep Monitoring/Polysomnography/Sleep Architecture in MROS variables
Conventionally this variable would be called the start of total sleep time (TST)(i.e. total time spent in stage 1 or greater).
Total Sleep Duration: the interval between sleep onset and sleep offset while the participant is asleep from home sleep apnea test
nsrr_ttldursp_f1 under Harmonized/Polysomnography/Sleep Architecture in HEARTBEAT 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)Harmonized by the NSRR team. Source: :index_time: at Baseline
Total estimated sleep duration from type III home sleep apnea test
index_time under Sleep Monitoring/Polysomnography/Sleep Architecture in HEARTBEAT 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)
Total duration of estimated sleep in non-supine position from type III home sleep apnea test
time_nsupine under Sleep Monitoring/Polysomnography/Sleep Architecture in HEARTBEAT 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)
Total recording time
embqs_total_recording_time under Sleep Monitoring/Polysomnography/Administrative in BESTAIR variables
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)
Total In-bed Period: the interval between lights off/in-bed time and lights on/out-bed time from polysomnography
nsrr_ttlprdbd_f1 under Harmonized/Polysomnography/Sleep Architecture in HCHS variables
Harmonized by the NSRR team. Conventionally, this would be called time in bed (TIB) Source: :slpa30: at Visit 1
Average daily sleep efficiency on weekdays from actigraphy
sawa107 under Sleep Monitoring/Actigraphy in HCHS 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.
Standard deviation of the daily sleep efficiency on weekdays from actigraphy
sawa108 under Sleep Monitoring/Actigraphy in HCHS 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.
Total number of days with sleep data recorded over all days from actigraphy
sawa47 under Sleep Monitoring/Actigraphy in HCHS variables
This is the number of valid main rest intervals in the recording that meet quality criteria. Main rest intervals are the intervals of time between the epoch at which the participant went to bed and the epoch at which the participant got out of bed, as marked by the scorer. It refers to the participant's nightly time in bed, including time awake and asleep.
Weekday average of bedtime and wakeup time, in hours
mid_sleep_time_wkday_sueno under Sleep Questionnaires/Sleep Habits in HCHS variables
Weekend average of bedtime and wakeup time, in hours
mid_sleep_time_wkend_sueno under Sleep Questionnaires/Sleep Habits in HCHS variables
MSLT: Time Smoking Prior to Nap 1 (1)
nap1_smoke_time under Sleep Monitoring/Other Sleep Tests/Multiple Sleep Latency Test (MSLT) in WSC variables
Clinical MSLT only Variable from a Multiple Sleep Latency Test (MSLT), Roehrs & Roth 1992 (PubMed ID: 1552009).Search for all Multiple Sleep Latency Test variables within this dataset
MSLT: Time Smoking Prior to Nap 2 (1)
nap2_smoke_time under Sleep Monitoring/Other Sleep Tests/Multiple Sleep Latency Test (MSLT) in WSC variables
Clinical MSLT only Variable from a Multiple Sleep Latency Test (MSLT), Roehrs & Roth 1992 (PubMed ID: 1552009).Search for all Multiple Sleep Latency Test variables within this dataset
MSLT: Time Smoking Prior to Nap 3 (1)
nap3_smoke_time under Sleep Monitoring/Other Sleep Tests/Multiple Sleep Latency Test (MSLT) in WSC variables
Clinical MSLT only Variable from a Multiple Sleep Latency Test (MSLT), Roehrs & Roth 1992 (PubMed ID: 1552009).Search for all Multiple Sleep Latency Test variables within this dataset
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