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Sleep Heart Health Study

Name Label Folder
nsupinep
Percent Time non-supine
Percent Time non-supine

Percent of sleep time in non-supine body position

Sleep Monitoring/Polysomnography/Sleep Architecture
slpeffp
Sleep efficiency
Sleep efficiency Sleep Monitoring/Polysomnography/Sleep Architecture
slpprdp
Total Sleep Duration: the interval between sleep onset and sleep offset while the participant is asleep from type II polysomnography
Total Sleep Duration: the interval between sleep onset and sleep offset while the participant is asleep from type II polysomnography

Conventionally this variable would be called total sleep time (TST) (i.e. total time spent in stage 1 or greater).

Sleep Monitoring/Polysomnography/Sleep Architecture
supinep
Percent Time supine
Percent Time supine Sleep Monitoring/Polysomnography/Sleep Architecture
timeremp
Percent of sleep time in rapid eye movement sleep (REM)
Percent of sleep time in rapid eye movement sleep (REM)

The ratio of time in rapid eye movement sleep (REM) to total sleep time, expressed as a percentage.

Sleep Monitoring/Polysomnography/Sleep Architecture
times34p
Percent of sleep time in stage 3-4 sleep
Percent of sleep time in stage 3-4 sleep Sleep Monitoring/Polysomnography/Sleep Architecture
timest1p
Percent of sleep time in stage 1 sleep
Percent of sleep time in stage 1 sleep Sleep Monitoring/Polysomnography/Sleep Architecture
timest2p
Percent of sleep time in stage 2 sleep
Percent of sleep time in stage 2 sleep Sleep Monitoring/Polysomnography/Sleep Architecture
waso
Wake After Sleep Onset
Wake After Sleep Onset

Total amount of time spent awake after going to sleep

Sleep Monitoring/Polysomnography/Sleep Architecture
hremt1p
Number of rapid eye movement sleep (REM) to stage 1 shifts per hour of sleep
Number of rapid eye movement sleep (REM) to stage 1 shifts per hour of sleep Sleep Monitoring/Polysomnography/Sleep Architecture
hremt2p
Number of rapid eye movement sleep (REM) to stage 2 shifts per hour of sleep
Number of rapid eye movement sleep (REM) to stage 2 shifts per hour of sleep Sleep Monitoring/Polysomnography/Sleep Architecture
hremt34p
Number of rapid eye movement sleep (REM) to stage 3/4 shifts per hour of sleep
Number of rapid eye movement sleep (REM) to stage 3/4 shifts per hour of sleep Sleep Monitoring/Polysomnography/Sleep Architecture
hslptawp
Number of sleep to awake shifts per hour
Number of sleep to awake shifts per hour Sleep Monitoring/Polysomnography/Sleep Architecture
hstg2t1p
Number of stage 2 to stage 1 shifts per hour of sleep
Number of stage 2 to stage 1 shifts per hour of sleep Sleep Monitoring/Polysomnography/Sleep Architecture
hstg342p
Number of stage 3/4 to stage 1/2 shifts per hour of sleep
Number of stage 3/4 to stage 1/2 shifts per hour of sleep Sleep Monitoring/Polysomnography/Sleep Architecture
nremepbp
Sleep Time (Non-rapid eye movement sleep (NREM), Supine)
Sleep Time (Non-rapid eye movement sleep (NREM), Supine) Sleep Monitoring/Polysomnography/Sleep Architecture
nremepop
Sleep Time (Non-rapid eye movement sleep (NREM), Non-supine)
Sleep Time (Non-rapid eye movement sleep (NREM), Non-supine) Sleep Monitoring/Polysomnography/Sleep Architecture
pcstah3d
Percent of sleep time in Apnea+Hypopnea with greater than >=3% oxygen desaturation
Percent of sleep time in Apnea+Hypopnea with greater than >=3% oxygen desaturation Sleep Monitoring/Polysomnography/Sleep Architecture
pcstahar
Percent of sleep time in Apnea or Hypopnea with arousal
Percent of sleep time in Apnea or Hypopnea with arousal Sleep Monitoring/Polysomnography/Sleep Architecture
pcstahda
Percent of sleep time in Apnea+Hypopnea with greater than >=3% oxygen desaturation or arousal
Percent of sleep time in Apnea+Hypopnea with greater than >=3% oxygen desaturation or arousal Sleep Monitoring/Polysomnography/Sleep Architecture
pctsa70h
Percent of sleep time oxygen saturation (SaO2) is below 70%
Percent of sleep time oxygen saturation (SaO2) is below 70% Sleep Monitoring/Polysomnography/Sleep Architecture
pctsa75h
Percent of sleep time oxygen saturation (SaO2) is below 75%
Percent of sleep time oxygen saturation (SaO2) is below 75% Sleep Monitoring/Polysomnography/Sleep Architecture
pctsa80h
Percent of sleep time oxygen saturation (SaO2) is below 80%
Percent of sleep time oxygen saturation (SaO2) is below 80% Sleep Monitoring/Polysomnography/Sleep Architecture
pctsa85h
Percent of sleep time oxygen saturation (SaO2) is below 85%
Percent of sleep time oxygen saturation (SaO2) is below 85% Sleep Monitoring/Polysomnography/Sleep Architecture
pctsa90h
Percent of sleep time oxygen saturation (SaO2) is below 90%
Percent of sleep time oxygen saturation (SaO2) is below 90% Sleep Monitoring/Polysomnography/Sleep Architecture
pctsa95h
Percent of sleep time oxygen saturation (SaO2) is below 95%
Percent of sleep time oxygen saturation (SaO2) is below 95% Sleep Monitoring/Polysomnography/Sleep Architecture
pctstapn
Percent of sleep time in Apnea
Percent of sleep time in Apnea Sleep Monitoring/Polysomnography/Sleep Architecture
pctsthyp
Percent of sleep time in Hypopnea
Percent of sleep time in Hypopnea Sleep Monitoring/Polysomnography/Sleep Architecture
remepbp
Sleep Time (Rapid eye movement sleep (REM), Supine)
Sleep Time (Rapid eye movement sleep (REM), Supine) Sleep Monitoring/Polysomnography/Sleep Architecture
remepop
Sleep Time (Rapid eye movement sleep (REM), Non-supine)
Sleep Time (Rapid eye movement sleep (REM), Non-supine) Sleep Monitoring/Polysomnography/Sleep Architecture
remlaiip
Rapid eye movement sleep (REM) Latency II - excluding wake
Rapid eye movement sleep (REM) Latency II - excluding wake Sleep Monitoring/Polysomnography/Sleep Architecture
remlaip
Rapid eye movement sleep (REM) Latency I - including wake time
Rapid eye movement sleep (REM) Latency I - including wake time Sleep Monitoring/Polysomnography/Sleep Architecture
remt1p
Number of rapid eye movement sleep (REM) to stage 1 shifts during sleep
Number of rapid eye movement sleep (REM) to stage 1 shifts during sleep Sleep Monitoring/Polysomnography/Sleep Architecture
remt2p
Number of rapid eye movement sleep (REM) to stage 2 shifts during sleep
Number of rapid eye movement sleep (REM) to stage 2 shifts during sleep Sleep Monitoring/Polysomnography/Sleep Architecture
remt34p
Number of rapid eye movement sleep (REM) to stage 3/4 shifts during sleep
Number of rapid eye movement sleep (REM) to stage 3/4 shifts during sleep Sleep Monitoring/Polysomnography/Sleep Architecture
slplatp
Sleep latency
Sleep latency Sleep Monitoring/Polysomnography/Sleep Architecture
slptawp
Number of sleep to awake shifts
Number of sleep to awake shifts Sleep Monitoring/Polysomnography/Sleep Architecture
stg2t1p
Number of stage 2 to stage 1 shifts during sleep
Number of stage 2 to stage 1 shifts during sleep Sleep Monitoring/Polysomnography/Sleep Architecture
stg34t2p
Number of stage 3/4 to stage 1/2 shifts during sleep
Number of stage 3/4 to stage 1/2 shifts during sleep Sleep Monitoring/Polysomnography/Sleep Architecture
stloutp
Lights out time
Lights out time

In Sleep Hearth Health Study Visit 1 (SHHS1), values are in number of epochs from start of recording. In Sleep Heart Health Study Visit 2(SHHS2), values are clock times.

Sleep Monitoring/Polysomnography/Sleep Architecture
stonsetp
Sleep onset time
Sleep onset time Sleep Monitoring/Polysomnography/Sleep Architecture
timebedp
Time in bed
Time in bed

Time from lights out to lights on, rounded to nearest minute

Sleep Monitoring/Polysomnography/Sleep Architecture
timerem
Minutes spent in rapid eye movement sleep (REM)
Minutes spent in rapid eye movement sleep (REM)

Total time scored as rapid eye movement sleep (REM) rounded to nearest minute

Sleep Monitoring/Polysomnography/Sleep Architecture
timest1
Time in Stage 1 (Sleep Heart Health Study Visit Two (SHHS2))
Time in Stage 1 (Sleep Heart Health Study Visit Two (SHHS2))

Total time scored as stage 1 rounded to nearest minute

Sleep Monitoring/Polysomnography/Sleep Architecture
timest2
Time in Stage 2 (Sleep Heart Health Study Visit Two (SHHS2))
Time in Stage 2 (Sleep Heart Health Study Visit Two (SHHS2))

Total time scored as stage 2 rounded to nearest minute

Sleep Monitoring/Polysomnography/Sleep Architecture
timest34
Time in Stage 3/4 (Sleep Heart Health Study Visit Two (SHHS2))
Time in Stage 3/4 (Sleep Heart Health Study Visit Two (SHHS2))

Total time scored as stage 3/4 rounded to nearest minute

Sleep Monitoring/Polysomnography/Sleep Architecture