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Wisconsin Sleep Cohort

Name Label Folder
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
ps_eds
Excessive daytime sleepiness
Excessive daytime sleepiness

How often, if ever, do you have any of the following problems sleeping? (Circle one response for each item.) . Do you have feeling of excessive daytime sleepiness?

Sleep Questionnaires/Hypersomnia
sleepiness
Excessive daytime sleepiness
Excessive daytime sleepiness

Many people have periods of low energy or fatigue, but, during a typical day do you experience excessive sleepiness when it is difficult to fight an uncontrollable urge to fall asleep?

Sleep Questionnaires/Hypersomnia
ep1
Epworth Sleepiness Scale: Chance of dozing while sitting and reading
Epworth Sleepiness Scale: Chance of dozing while sitting and reading

Item from the Epworth Sleepiness Scale Johns MW 1991 (PubMed ID: 1798888)

Search for all ESS variables within this dataset

Sleep Questionnaires/Hypersomnia/Epworth Sleepiness Scale (ESS)
ep2
Epworth Sleepiness Scale: Chance of dozing while watching TV
Epworth Sleepiness Scale: Chance of dozing while watching TV

Item from the Epworth Sleepiness Scale Johns MW 1991 (PubMed ID: 1798888)

Search for all ESS variables within this dataset

Sleep Questionnaires/Hypersomnia/Epworth Sleepiness Scale (ESS)
ep3
Epworth Sleepiness Scale: Chance of dozing while sitting, inactive in a public place
Epworth Sleepiness Scale: Chance of dozing while sitting, inactive in a public place

Item from the Epworth Sleepiness Scale Johns MW 1991 (PubMed ID: 1798888)

Search for all ESS variables within this dataset

Sleep Questionnaires/Hypersomnia/Epworth Sleepiness Scale (ESS)
ep4
Epworth Sleepiness Scale: Chance of dozing as a passenger in a car for an hour without a break
Epworth Sleepiness Scale: Chance of dozing as a passenger in a car for an hour without a break

Item from the Epworth Sleepiness Scale Johns MW 1991 (PubMed ID: 1798888)

Search for all ESS variables within this dataset

Sleep Questionnaires/Hypersomnia/Epworth Sleepiness Scale (ESS)
ep5
Epworth Sleepiness Scale: Chance of dozing while lying down to rest in the afternoon when circumstances permit
Epworth Sleepiness Scale: Chance of dozing while lying down to rest in the afternoon when circumstances permit

Item from the Epworth Sleepiness Scale Johns MW 1991 (PubMed ID: 1798888)

Search for all ESS variables within this dataset

Sleep Questionnaires/Hypersomnia/Epworth Sleepiness Scale (ESS)
ep6
Epworth Sleepiness Scale: Chance of dozing while sitting and talking to someone
Epworth Sleepiness Scale: Chance of dozing while sitting and talking to someone

Item from the Epworth Sleepiness Scale Johns MW 1991 (PubMed ID: 1798888)

Search for all ESS variables within this dataset

Sleep Questionnaires/Hypersomnia/Epworth Sleepiness Scale (ESS)
ep7
Epworth Sleepiness Scale: Chance of dozing while sitting quietly after lunch without alcohol
Epworth Sleepiness Scale: Chance of dozing while sitting quietly after lunch without alcohol

Item from the Epworth Sleepiness Scale Johns MW 1991 (PubMed ID: 1798888)

Search for all ESS variables within this dataset

Sleep Questionnaires/Hypersomnia/Epworth Sleepiness Scale (ESS)
ep8
Epworth Sleepiness Scale: Chance of dozing while in a car, while stopped for a few minutes in the traffic
Epworth Sleepiness Scale: Chance of dozing while in a car, while stopped for a few minutes in the traffic

Item from the Epworth Sleepiness Scale Johns MW 1991 (PubMed ID: 1798888)

Search for all ESS variables within this dataset

Sleep Questionnaires/Hypersomnia/Epworth Sleepiness Scale (ESS)
apnea_year
Sleep Apnea: Self-reported year of diagnosis
Sleep Apnea: Self-reported year of diagnosis

If yes, when was this? ______ Year

Sleep Questionnaires/Sleep Disorder
apnea_freq
Sleep Apnea: Self-reported frequency
Sleep Apnea: Self-reported frequency

According to what others have told you, or to your own awareness, how often, if ever, do you have momentary periods during sleep when you stop breathing or you breathe abnormally?

Sleep Questionnaires/Sleep Disordered Breathing
awake_freq
Frequency of awake with gasping or choking
Frequency of awake with gasping or choking

How often, if ever, have you awakened suddenly with the feeling of gasping or choking?

Sleep Questionnaires/Sleep Disordered Breathing
choke_freq
Frequency of gasping, choking or making snorting sound during sleep
Frequency of gasping, choking or making snorting sound during sleep

According to what others have told you, or to your own awareness, how often, if ever, do you gasp, choke, or make snorting sounds during sleep?

Sleep Questionnaires/Sleep Disordered Breathing
snore_freq
Snoring frequency
Snoring frequency

According to what others have told you or to your own awareness, how often do you snore?

Sleep Questionnaires/Sleep Disordered Breathing
snore_vol
Snoring volume
Snoring volume

How loud do you think, or have others said, your snoring is?

Sleep Questionnaires/Sleep Disordered Breathing
anyinsomnia
Indicator for insomnia symptoms
Indicator for insomnia symptoms

Calculated - If any of the four insomnia symptoms (i.e. difficulty falling asleep, difficulty falling back to sleep, waking up frequently, waking up too early) have a frequency of more than 5-15 time a month, then it is a 1: yes.

Sleep Questionnaires/Sleep Disturbance
eval_general
Self-reported satisfaction with sleep
Self-reported satisfaction with sleep

Are you satisfied with your usual night's sleep (check one)?

Sleep Questionnaires/Sleep Disturbance
ninsomnia
Count of frequent insomnia symptoms
Count of frequent insomnia symptoms

Calculated: Count the number of insomnia symptoms (i.e. difficulty falling asleep, difficulty falling back to sleep, waking up frequently, waking up too early) with a frequency of more than 5-15 time a month.

Sleep Questionnaires/Sleep Disturbance
ninsomniadays
Total days per month having any insomnia symptoms
Total days per month having any insomnia symptoms

Calculated: Sum of responses to insomnia symptoms (i.e. difficulty falling asleep, difficulty falling back to sleep, waking up frequently, waking up too early) where 0=0, 1=1, 2=3, 3=10, 4=25

Sleep Questionnaires/Sleep Disturbance
ps_backsleep
Difficulty falling back to sleep after waking up during the night
Difficulty falling back to sleep after waking up during the night

How often, if ever, do you have any of the following problems sleeping? (Circle one response for each item.) Do you wake up during the night and have a hard time getting back to sleep?

Sleep Questionnaires/Sleep Disturbance
ps_diff
Difficulty falling asleep
Difficulty falling asleep

How often, if ever, do you have any of the following problems sleeping? (Circle one response for each item.) Do you have difficulty getting to sleep?

Sleep Questionnaires/Sleep Disturbance
ps_nightmare
Frequency of having nightmares or disturbing dreams
Frequency of having nightmares or disturbing dreams

How often, if ever, do you have any of the following problems sleeping? (Circle one response for each item.) Do you have nightmares or disturbing dreams?

Sleep Questionnaires/Sleep Disturbance
ps_notrested
Not rested regardless of sleep amount
Not rested regardless of sleep amount

How often, if ever, do you have any of the following problems sleeping? (Circle one response for each item.) Do you not feel rested during the day no matter how many hours of sleep you had?

Sleep Questionnaires/Sleep Disturbance
ps_tooearly
Wake up too early
Wake up too early

How often, if ever, do you have any of the following problems sleeping? (Circle one response for each item.) Do you wake up too early in the morning and can't get back to sleep?

Sleep Questionnaires/Sleep Disturbance
ps_wakerepeat
Wake up frequently during the night
Wake up frequently during the night

How often, if ever, do you have any of the following problems sleeping? (Circle one response for each item.) Do you wake up repeatedly during the night?

Sleep Questionnaires/Sleep Disturbance
ps_wakeup
Difficulty waking up in the morning
Difficulty waking up in the morning

How often, if ever, do you have any of the following problems sleeping? (Circle one response for each item.) Do you find it very difficult to wake up in the morning?

Sleep Questionnaires/Sleep Disturbance
naps
Self-reported total sleep duration in naps per week
Self-reported total sleep duration in naps per week

How many hours of sleep do you usually get during: a typical week from daytime or evening naps?

Sleep Questionnaires/Sleep Habits
totsleep
Self-reported daily sleep duration in main sleep
Self-reported daily sleep duration in main sleep

Calculated - Weighted average of weekday and weekend self-reported sleep duration in main sleeps

Sleep Questionnaires/Sleep Habits
totsleepnap
Self-reported daily sleep duration in main sleep and naps combined
Self-reported daily sleep duration in main sleep and naps combined

Calculated - Weighted average of weekday and weekend self-reported sleep duration in main sleeps and naps combined

Sleep Questionnaires/Sleep Habits
weekend
Self-reported weekend sleep duration in main sleep
Self-reported weekend sleep duration in main sleep

How many hours of sleep do you usually get during: a weekend or non worknight

Sleep Questionnaires/Sleep Habits
workday
Self-reported weekday sleep duration in main sleep
Self-reported weekday sleep duration in main sleep

How many hours of sleep do you usually get during: workday night

Sleep Questionnaires/Sleep Habits
apnea_need
Sleep Apnea: Self-reported treatment need
Sleep Apnea: Self-reported treatment need

Were you told you needed treatment? __Yes __No (reported Y told by a doctor that they had sleep apnea)

Sleep Treatment
apnea_treated
Sleep Apnea: Self-reported treatment received
Sleep Apnea: Self-reported treatment received

Did you have the treatment? (when told "Y" needed treatment for sleep apnea)

Sleep Treatment
apnea_treatment1
Sleep Apnea: Self-reported treatment recommendation 1
Sleep Apnea: Self-reported treatment recommendation 1

If yes, what treatment was recommended? (When told "Y" need treatment for sleep apnea)

Sleep Treatment
apnea_treatment2
Sleep Apnea: self-reported treatment recommendation 2
Sleep Apnea: self-reported treatment recommendation 2

If yes, what treatment was recommended? (When told "Y" need treatment for sleep apnea)

Sleep Treatment
apnea_treatment3
Sleep Apnea: Self-reported treatment recommendation 3
Sleep Apnea: Self-reported treatment recommendation 3

If yes, what treatment was recommended? (When told "Y" need treatment for sleep apnea)

Sleep Treatment
apnea_treatment_help
Sleep Apnea: Self-reported treatment effect
Sleep Apnea: Self-reported treatment effect

Did the treatment help (check one)?

Sleep Treatment
comp_hrnight
Apnea Treatment Compliance: Hours per night using CPAP or BiPAP
Apnea Treatment Compliance: Hours per night using CPAP or BiPAP

If the treatment was CPAP or BiPAP please answer the following questions: If you are using the recommended CPAP/BiPAP, please indicate: b. How many hours per night do you use it?

Sleep Treatment
comp_nights_wk
Apnea Treatment Compliance: Number of nights per week using CPAP or BiPAP
Apnea Treatment Compliance: Number of nights per week using CPAP or BiPAP

If the treatment was CPAP or BiPAP please answer the following questions: If you are using the recommended CPAP/BiPAP, please indicate: b. How many nights per week do you use it?

Sleep Treatment