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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

Measurements/Polysomnography/Sleep Architecture
pctlt75
Percent of sleep time with less than 75% oxygen saturation (SaO2)
Percent of sleep time with less than 75% oxygen saturation (SaO2) Measurements/Polysomnography/Sleep Architecture
pctlt80
Percent of sleep time with less than 80% oxygen saturation (SaO2)
Percent of sleep time with less than 80% oxygen saturation (SaO2) Measurements/Polysomnography/Sleep Architecture
pctlt85
Percent of sleep time with less than 85% oxygen saturation (SaO2)
Percent of sleep time with less than 85% oxygen saturation (SaO2) Measurements/Polysomnography/Sleep Architecture
pctlt90
Percent of sleep time with less than 90% oxygen saturation (SaO2)
Percent of sleep time with less than 90% oxygen saturation (SaO2)

Ratio of the number of minutes with oxygen saturation (SaO2) under 90% to the total sleep time expressed in hours.

Measurements/Polysomnography/Sleep Architecture
slp_eff
Sleep Efficiency
Sleep Efficiency

Percentage of time in bed that was spent sleeping, or the ratio of total sleep time to total time in bed, expressed as a percentage.

Measurements/Polysomnography/Sleep Architecture
slp_lat
Sleep latency
Sleep latency

Time from lights out time to beginning of sleep, rounded to nearest minute

Measurements/Polysomnography/Sleep Architecture
slpprdp
Sleep Time
Sleep Time Measurements/Polysomnography/Sleep Architecture
slptime
Total Sleep Time
Total Sleep Time Measurements/Polysomnography/Sleep Architecture
supinep
Percent Time supine
Percent Time supine Measurements/Polysomnography/Sleep Architecture
times34p
Percent Time in Stage 3/4
Percent Time in Stage 3/4 Measurements/Polysomnography/Sleep Architecture
timest1p
Percent Time in Stage 1
Percent Time in Stage 1 Measurements/Polysomnography/Sleep Architecture
timest2p
Percent Time in Stage 2
Percent Time in Stage 2 Measurements/Polysomnography/Sleep Architecture
waso
Wake After Sleep Onset
Wake After Sleep Onset

Total amount of time spent awake after going to sleep

Measurements/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 Measurements/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 Measurements/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 Measurements/Polysomnography/Sleep Architecture
hslptawp
Number of sleep to awake shifts per hour
Number of sleep to awake shifts per hour Measurements/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 Measurements/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 Measurements/Polysomnography/Sleep Architecture
minremp
Time in rapid eye movement sleep (REM)
Time in rapid eye movement sleep (REM) Measurements/Polysomnography/Sleep Architecture
minstg1p
Time in stage 1 sleep
Time in stage 1 sleep Measurements/Polysomnography/Sleep Architecture
minstg2p
Time in stage 2 sleep
Time in stage 2 sleep Measurements/Polysomnography/Sleep Architecture
mnstg34p
Time in stage 3-4 sleep
Time in stage 3-4 sleep Measurements/Polysomnography/Sleep Architecture
nremepbp
Sleep Time (Non-rapid eye movement sleep (NREM), Supine)
Sleep Time (Non-rapid eye movement sleep (NREM), Supine) Measurements/Polysomnography/Sleep Architecture
nremepop
Sleep Time (Non-rapid eye movement sleep (NREM), Non-supine)
Sleep Time (Non-rapid eye movement sleep (NREM), Non-supine) Measurements/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 Measurements/Polysomnography/Sleep Architecture
pcstahar
Percent of sleep time in Apnea or Hypopnea with arousal
Percent of sleep time in Apnea or Hypopnea with arousal Measurements/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 Measurements/Polysomnography/Sleep Architecture
pctsa70h
Percent of sleep time oxygen saturation (SaO2) is below 70%
Percent of sleep time oxygen saturation (SaO2) is below 70% Measurements/Polysomnography/Sleep Architecture
pctsa75h
Percent of sleep time oxygen saturation (SaO2) is below 75%
Percent of sleep time oxygen saturation (SaO2) is below 75% Measurements/Polysomnography/Sleep Architecture
pctsa80h
Percent of sleep time oxygen saturation (SaO2) is below 80%
Percent of sleep time oxygen saturation (SaO2) is below 80% Measurements/Polysomnography/Sleep Architecture
pctsa85h
Percent of sleep time oxygen saturation (SaO2) is below 85%
Percent of sleep time oxygen saturation (SaO2) is below 85% Measurements/Polysomnography/Sleep Architecture
pctsa90h
Percent of sleep time oxygen saturation (SaO2) is below 90%
Percent of sleep time oxygen saturation (SaO2) is below 90% Measurements/Polysomnography/Sleep Architecture
pctsa95h
Percent of sleep time oxygen saturation (SaO2) is below 95%
Percent of sleep time oxygen saturation (SaO2) is below 95% Measurements/Polysomnography/Sleep Architecture
pctstapn
Percent of sleep time in Apnea
Percent of sleep time in Apnea Measurements/Polysomnography/Sleep Architecture
pctsthyp
Percent of sleep time in Hypopnea
Percent of sleep time in Hypopnea Measurements/Polysomnography/Sleep Architecture
remepbp
Sleep Time (Rapid eye movement sleep (REM), Supine)
Sleep Time (Rapid eye movement sleep (REM), Supine) Measurements/Polysomnography/Sleep Architecture
remepop
Sleep Time (Rapid eye movement sleep (REM), Non-supine)
Sleep Time (Rapid eye movement sleep (REM), Non-supine) Measurements/Polysomnography/Sleep Architecture
remlaiip
Rapid eye movement sleep (REM) Latency II - excluding wake
Rapid eye movement sleep (REM) Latency II - excluding wake Measurements/Polysomnography/Sleep Architecture
remlaip
Rapid eye movement sleep (REM) Latency I - including wake time
Rapid eye movement sleep (REM) Latency I - including wake time Measurements/Polysomnography/Sleep Architecture
rem_lat1
Rapid eye movement sleep (REM) Latency I
Rapid eye movement sleep (REM) Latency I

Total time from beginning of sleep to first epoch of rapid eye movement sleep (REM), rounded to nearest minute

Measurements/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 Measurements/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 Measurements/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 Measurements/Polysomnography/Sleep Architecture
scremp
Time in rapid eye movement sleep (REM)(Sleep Heart Health Study Visit One (SHHS1))
Time in rapid eye movement sleep (REM)(Sleep Heart Health Study Visit One (SHHS1)) Measurements/Polysomnography/Sleep Architecture
scstg1p
Time in stage 1 sleep (Sleep Heart Health Study Visit One (SHHS1))
Time in stage 1 sleep (Sleep Heart Health Study Visit One (SHHS1)) Measurements/Polysomnography/Sleep Architecture
scstg2p
Time in stage 2 sleep (Sleep Heart Health Study Visit One (SHHS1))
Time in stage 2 sleep (Sleep Heart Health Study Visit One (SHHS1)) Measurements/Polysomnography/Sleep Architecture
scstg34p
Time in stage 3/4 sleep (Sleep Heart Health Study Visit One (SHHS1))
Time in stage 3/4 sleep (Sleep Heart Health Study Visit One (SHHS1)) Measurements/Polysomnography/Sleep Architecture
sleep_latency
Sleep latency
Sleep latency

0: Unreliable 1:Reliable

Measurements/Polysomnography/Sleep Architecture
slpeffp
Polysomnography (PSG) Report (Sleep Heart Health Study Visit Two (SHHS2)): Sleep Efficiency
Polysomnography (PSG) Report (Sleep Heart Health Study Visit Two (SHHS2)): Sleep Efficiency Measurements/Polysomnography/Sleep Architecture
slplatp
Polysomnography (PSG) Report (Sleep Heart Health Study Visit One (SHHS1)): Sleep Latency
Polysomnography (PSG) Report (Sleep Heart Health Study Visit One (SHHS1)): Sleep Latency Measurements/Polysomnography/Sleep Architecture
slp_rdi
Sleep time used in calculations
Sleep time used in calculations

Total time from lights out to lights on that is scored as sleep, rounded to nearest minute

Measurements/Polysomnography/Sleep Architecture
slptawp
Number of sleep to awake shifts
Number of sleep to awake shifts Measurements/Polysomnography/Sleep Architecture
slp_time
Sleep time when entire sleep was captured
Sleep time when entire sleep was captured

Sleep time will be missing for studies where the entire sleep period was not captured.

Measurements/Polysomnography/Sleep Architecture
stg2t1p
Number of stage 2 to stage 1 shifts during sleep
Number of stage 2 to stage 1 shifts during sleep Measurements/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 Measurements/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.

Measurements/Polysomnography/Sleep Architecture
stonsetp
Sleep onset time
Sleep onset time Measurements/Polysomnography/Sleep Architecture
time_bed
Total Time in Bed
Total Time in Bed

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

Measurements/Polysomnography/Sleep Architecture
timebedp
Time in bed
Time in bed Measurements/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

Measurements/Polysomnography/Sleep Architecture
timeremp
Percent Time in rapid eye movement sleep (REM)
Percent 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.

Measurements/Polysomnography/Sleep Architecture
timest1
Time in Stage 1
Time in Stage 1

Total time scored as stage 1 rounded to nearest minute

Measurements/Polysomnography/Sleep Architecture
timest2
Time in Stage 2
Time in Stage 2

Total time scored as stage 2 rounded to nearest minute

Measurements/Polysomnography/Sleep Architecture
timest34
Time in Stage 3/4
Time in Stage 3/4

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

Measurements/Polysomnography/Sleep Architecture
tmremp
Percent of sleep time in rapid eye movement sleep (REM)
Percent of sleep time in rapid eye movement sleep (REM) Measurements/Polysomnography/Sleep Architecture
tmstg1p
Percent of sleep time in stage 1 sleep
Percent of sleep time in stage 1 sleep Measurements/Polysomnography/Sleep Architecture
tmstg2p
Percent of sleep time in stage 2 sleep
Percent of sleep time in stage 2 sleep Measurements/Polysomnography/Sleep Architecture
tmstg34p
Percent of sleep time in stage 3-4 sleep
Percent of sleep time in stage 3-4 sleep Measurements/Polysomnography/Sleep Architecture