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Average oxygen saturation in REM sleep from type I polysomnography
sao2rem under Sleep Monitoring/Polysomnography/Oxygen Saturation in CHAT variables
[mean(all oxygen saturation (SaO2) values in rapid eye movement sleep (REM))]. will be missing if study scored as sleep/wake only.
Average nadirs in NREM sleep from type I polysomnography
saondnrem under Sleep Monitoring/Polysomnography/Oxygen Saturation in CHAT variables
Mean oxygen saturation (SaO2) nadir in non-rapid eye movement sleep (NREM)
Average nadirs in REM sleep from type I polysomnography
saondrem under Sleep Monitoring/Polysomnography/Oxygen Saturation in CHAT variables
Mean oxygen saturation (SaO2) nadir in rapid eye movement sleep (REM)
Average oxygen saturation in NREM sleep from type I polysomnography
saonrem under Sleep Monitoring/Polysomnography/Oxygen Saturation in CHAT variables
Mean oxygen saturation (SaO2) during non-rapid eye movement sleep (NREM)
Average oxygen saturation in REM sleep from type I polysomnography
saorem under Sleep Monitoring/Polysomnography/Oxygen Saturation in CHAT variables
Mean oxygen saturation (SaO2) during rapid eye movement sleep (REM)
Urgent referral - oxygen saturation (SaO2) <90% >2% sleep time = 1 urgent ineligible
sa02lt90 under Sleep Monitoring/Polysomnography/Signal Quality in CHAT variables
*Note studies that have oximetry problems here
Urgent referral - oxygen saturation (SaO2) <92% >2% sleep time = 1 Surgeon alert
sa02lt92 under Sleep Monitoring/Polysomnography/Signal Quality in CHAT variables
*Note studies that have oximetry problems here
Scoring stage wake/sleep unreliable
wakslepr under Sleep Monitoring/Polysomnography/Signal Quality in CHAT variables
1=Sleep staging problem - scoring wake/sleep unreliable (when the clarity of the EEG makes distinguishing the transition unreliable)
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 CHAT variables
Total time scored as rapid eye movement sleep (REM), rounded to nearest minute (use calculated variable - sleep wake studies screened out)
Total duration of sleep in REM sleep in supine position from type I polysomnography
remepbp under Sleep Monitoring/Polysomnography/Sleep Architecture in CHAT variables
Total time in rapid eye movement sleep (REM) with supine body position
Total duration of sleep in REM sleep in non-supine position from type I polysomnography
remepop under Sleep Monitoring/Polysomnography/Sleep Architecture in CHAT variables
Total time in rapid eye movement sleep (REM) with non-supine body position
REM Sleep Latency: the interval between the first sleep epoch and REM sleep excluding wake from type I polysomnography
remlaiip under Sleep Monitoring/Polysomnography/Sleep Architecture in CHAT variables
Total sleep time from beginning of sleep to first epoch of rapid eye movement sleep (REM) (excluding wake)
REM Sleep Latency: the interval between the first sleep epoch and REM sleep including wake from type I polysomnography
remlaip under Sleep Monitoring/Polysomnography/Sleep Architecture in CHAT variables
Total time from beginning of sleep to first epoch of rapid eye movement sleep (REM) (data can be inaccurate if scorer has not set sleep onset rule properly in compumedics software)
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 CHAT variables
Total time scored as rapid eye movement sleep (REM)
Number of snore in rapid eye movement sleep (REM) (decibel (dB) level 2)
nordb2 under Sleep Monitoring/Polysomnography/Sound Events in CHAT variables
Number of snore in rapid eye movement sleep (REM) (decibel (dB) level 3)
nordb3 under Sleep Monitoring/Polysomnography/Sound Events in CHAT variables
Number of snore in rapid eye movement sleep (REM) (decibel (dB) level 4)
nordb4 under Sleep Monitoring/Polysomnography/Sound Events in CHAT variables
Number of snore in rapid eye movement sleep (REM) (decibel (dB) level 5)
nordb5 under Sleep Monitoring/Polysomnography/Sound Events in CHAT variables
Number of snore in rapid eye movement sleep (REM) (decibel (dB) level 1 - 5)
nordball under Sleep Monitoring/Polysomnography/Sound Events in CHAT variables
Average thoraco-abdominal asynchrony during scored-event-free non-rapid eye movement sleep (NREM) Stage 2
taa_n2 under Sleep Monitoring/Polysomnography/Thoraco-abdominal Asynchrony in CHAT variables
Percentage of non-rapid eye movement sleep (NREM) Stage 2 included in the total thoraco-abdominal asynchrony analysis
taa_n2_pctst under Sleep Monitoring/Polysomnography/Thoraco-abdominal Asynchrony in CHAT variables
Amount of non-rapid eye movement sleep (NREM) Stage 2 included in the total thoraco-abdominal asynchrony analysis
taa_n2_st under Sleep Monitoring/Polysomnography/Thoraco-abdominal Asynchrony in CHAT variables
Average thoraco-abdominal asynchrony during scored-event-free non-rapid eye movement sleep (NREM) Stage 3
taa_n3 under Sleep Monitoring/Polysomnography/Thoraco-abdominal Asynchrony in CHAT variables
Percentage of non-rapid eye movement sleep (NREM) Stage 3 included in the total thoraco-abdominal asynchrony analysis
taa_n3_pctst under Sleep Monitoring/Polysomnography/Thoraco-abdominal Asynchrony in CHAT variables
Amount of non-rapid eye movement sleep (NREM) Stage 3 included in the total thoraco-abdominal asynchrony analysis
taa_n3_st under Sleep Monitoring/Polysomnography/Thoraco-abdominal Asynchrony in CHAT variables
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