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slewaou under Sleep Monitoring/Polysomnography/Signal Quality in SOF variables
sao2nrem under Sleep Monitoring/Polysomnography/Oxygen Saturation in CHAT variables
[mean(all oxygen saturation (SaO2) values in non-rapid eye movement sleep (NREM))]. will be missing if study scored as sleep/wake only.
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.
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)
wakslepr5 under Sleep Monitoring/Polysomnography/Signal Quality in MESA variables