Name | Label | Folder | |
---|---|---|---|
ahi
Apnea-Hypopnea Index: (Apneas with no oxygen desaturation threshold used and with or without arousal and hypopneas with discernible flow reduction and with >= 4% oxygen desaturation and with or without arousal) / hours of sleep from type I polysomnography
|
Apnea-Hypopnea Index: (Apneas with no oxygen desaturation threshold used and with or without arousal and hypopneas with discernible flow reduction and with >= 4% oxygen desaturation and with or without arousal) / hours of sleep from type I polysomnography
Calculated - Summary metric of sleep disordered breathing events |
Sleep Monitoring/Polysomnography | |
minsao2tst
Minimum level of oxygen saturation in total sleep duration from type I polysomnography
|
Minimum level of oxygen saturation in total sleep duration from type I polysomnography
Conventionally, total sleep duration would be called total sleep time (TST). |
Sleep Monitoring/Polysomnography | |
ptstl90
Percent of the total sleep duration with oxygen saturation below 90% from type I polysomnography
|
Percent of the total sleep duration with oxygen saturation below 90% from type I polysomnography
Conventionally, total sleep duration would be called total sleep time (TST). |
Sleep Monitoring/Polysomnography | |
se
Sleep Efficiency: the proportion of sleep duration in in-bed period from type I polysomnography
|
Sleep Efficiency: the proportion of sleep duration in in-bed period from type I polysomnography
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). |
Sleep Monitoring/Polysomnography | |
tst
Total Sleep Duration: the interval between sleep onset time and lights on/out-bed time while the participant is asleep from type I polysomnography
|
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 | |
waso
Wake After Sleep Onset: the total duration between sleep onset and lights-on/out-bed time while being awake from type I polysomnography
|
Wake After Sleep Onset: the total duration between sleep onset and lights-on/out-bed time while being awake from type I polysomnography | Sleep Monitoring/Polysomnography | |
avgo2sattst
Average oxygen saturation in total sleep duration from type I polysomnography
|
Average oxygen saturation in total sleep duration from type I polysomnography
Conventionally, total sleep duration would be called total sleep time (TST) (i.e. total time spent in stage 1 or greater). |
Sleep Monitoring/Polysomnography | |
mean_desat_dur
Average Duration of Apnea and Hypopnea Event: (Apneas with no oxygen desaturation threshold used and with or without arousal and hypopneas with discernible flow reduction and with >= 4% oxygen desaturation and with or without arousal) from type I polysomnography
|
Average Duration of Apnea and Hypopnea Event: (Apneas with no oxygen desaturation threshold used and with or without arousal and hypopneas with discernible flow reduction and with >= 4% oxygen desaturation and with or without arousal) from type I polysomnography | Sleep Monitoring/Polysomnography | |
mean_desat_perc
Average Level of Oxygen Desaturation of Apnea and Hypopnea Event: (Apneas with no oxygen desaturation threshold used and with or without arousal and hypopneas with discernible flow reduction and with >= 4% oxygen desaturation and with or without arousal) from type I polysomnography
|
Average Level of Oxygen Desaturation of Apnea and Hypopnea Event: (Apneas with no oxygen desaturation threshold used and with or without arousal and hypopneas with discernible flow reduction and with >= 4% oxygen desaturation and with or without arousal) from type I polysomnography | Sleep Monitoring/Polysomnography | |
nremahi
Apnea-Hypopnea Index (NREM): (Apneas with no oxygen desaturation threshold used and with or without arousal and hypopneas with discernible flow reduction and with >= 3% oxygen desaturation and with or without arousal)/ hours of NREM sleep from type I polysomnography
|
Apnea-Hypopnea Index (NREM): (Apneas with no oxygen desaturation threshold used and with or without arousal and hypopneas with discernible flow reduction and with >= 3% oxygen desaturation and with or without arousal)/ hours of NREM sleep from type I polysomnography
Calculated - Summary metric of sleep disordered breathing events during NREM sleep |
Sleep Monitoring/Polysomnography | |
pcttstrem
Percentage of REM sleep among total sleep duration from type I polysomnography
|
Percentage of REM sleep among total sleep duration from type I polysomnography
Conventionally, total sleep duration would be called total sleep time (TST). |
Sleep Monitoring/Polysomnography | |
pcttststage12
Percentage of stage 1 and 2 sleep among total sleep duration from type I polysomnography
|
Percentage of stage 1 and 2 sleep among total sleep duration from type I polysomnography
Conventionally, total sleep duration would be called total sleep time (TST). |
Sleep Monitoring/Polysomnography | |
pcttststage34
Percentage of stage 3 and 4 sleep among total sleep duration from type I polysomnography
|
Percentage of stage 3 and 4 sleep among total sleep duration from type I polysomnography
Conventionally, total sleep duration would be called total sleep time (TST). |
Sleep Monitoring/Polysomnography | |
pcttststagen1
Percentage of stage 1 sleep among total sleep duration from type I polysomnography
|
Percentage of stage 1 sleep among total sleep duration from type I polysomnography
Conventionally, total sleep duration would be called total sleep time (TST). |
Sleep Monitoring/Polysomnography | |
pcttststagen2
Percentage of stage 2 sleep among total sleep duration from type I polysomnography
|
Percentage of stage 2 sleep among total sleep duration from type I polysomnography
Conventionally, total sleep duration would be called total sleep time (TST). |
Sleep Monitoring/Polysomnography | |
remahi
Apnea-Hypopnea Index (REM): (Apneas with no oxygen desaturation threshold used and with or without arousal and hypopneas with discernible flow reduction and with >= 3% oxygen desaturation and with or without arousal)/ hours of REM sleep from type I polysomnography
|
Apnea-Hypopnea Index (REM): (Apneas with no oxygen desaturation threshold used and with or without arousal and hypopneas with discernible flow reduction and with >= 3% oxygen desaturation and with or without arousal)/ hours of REM sleep from type I polysomnography
Calculated - Summary metric of sleep disordered breathing events during REM sleep |
Sleep Monitoring/Polysomnography | |
rem_latency
Time from sleep onset to first epoch staged REM (includes wake time between sleep onset and first epoch of REM) from type I polysomnography
|
Time from sleep onset to first epoch staged REM (includes wake time between sleep onset and first epoch of REM) from type I polysomnography
Time to first epoch of REM sleep |
Sleep Monitoring/Polysomnography | |
sleep_latency
Sleep Latency: the interval between lights-out/in-bed time and sleep onset time from type I polysomnography
|
Sleep Latency: the interval between lights-out/in-bed time and sleep onset time from type I polysomnography | Sleep Monitoring/Polysomnography | |
tst_nrem
Total Sleep Duration (NREM): the interval between sleep onset time and lights on/out-bed time while the participant is in NREM sleep from type I polysomnography
|
Total Sleep Duration (NREM): the interval between sleep onset time and lights on/out-bed time while the participant is in NREM sleep from type I polysomnography
Total time spent in NREM sleep |
Sleep Monitoring/Polysomnography | |
tst_rem
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
|
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
Total time spent in REM sleep |
Sleep Monitoring/Polysomnography | |
psg_cpap
Reported use of CPAP at at time of nPSG
|
Reported use of CPAP at at time of nPSG | Sleep Monitoring/Polysomnography/Administrative | |
psg_oxygen
Reported use of Oxygen at time of nPSG
|
Reported use of Oxygen at time of nPSG | Sleep Monitoring/Polysomnography/Administrative | |
psg_source
Source of GRASS nPSG data
|
Source of GRASS nPSG data | Sleep Monitoring/Polysomnography/Administrative | |
a_eval_hour
Self report sleep duration the morning after type I polysomnography
|
Self report sleep duration the morning after type I polysomnography
About how many hours of restful sleep do you feel you got last night? |
Sleep Monitoring/Polysomnography/Evening and Morning Survey | |
a_eval_sleep
Stanford sleepiness scale the morning after type I polysomnography
|
Stanford sleepiness scale the morning after type I polysomnography
Finally, we would like you to rate how sleepy you feel right now, just as you did last night before sleep. The scale ranges from 1 to 7, with 7 being the most sleepy. Please read the entire scale below and then check the level that best describes your current state of sleepiness. |
Sleep Monitoring/Polysomnography/Evening and Morning Survey | |
a_eval_slept
Self-reported sleep quality the morning after type I polysomnography
|
Self-reported sleep quality the morning after type I polysomnography
How well did you sleep last night? (Please check one) |
Sleep Monitoring/Polysomnography/Evening and Morning Survey | |
p_eval_sleep
Stanford sleepiness scale before type I polysomnography
|
Stanford sleepiness scale before type I polysomnography
This question refers to how sleepy or alert you feel at a particular time. We would like you to read the scale below and then rate how sleepy you feel right now. The scale ranges from 1 to 7, with 7 being the most sleepy. Please read the entire scale, and then check the level that best describes your current state of sleepiness. |
Sleep Monitoring/Polysomnography/Evening and Morning Survey |