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Average end-tidal carbon dioxide (ETCO2) in non-rapid eye movement sleep (NREM)
co2avgnr
under Sleep Monitoring/Polysomnography/Capnography in
CHAT variables
Average end-tidal carbon dioxide (ETCO2) in rapid eye movement sleep (REM)
co2avgr
under Sleep Monitoring/Polysomnography/Capnography in
CHAT variables
Baseline end-tidal carbon dioxide (ETCO2) asleep
co2blslp
under Sleep Monitoring/Polysomnography/Capnography in
CHAT variables
Peak end-tidal carbon dioxide (ETCO2) asleep
co2peak
under Sleep Monitoring/Polysomnography/Capnography in
CHAT variables
LOG % Total Sleep Time (TST) with carbon dioxide (CO2) > 50 millimeters (mm) mercury (Hg)
lgpctco2g50
under Sleep Monitoring/Polysomnography/Capnography in
CHAT variables
Original source: MS 003
LOG % Total Sleep Time (TST) with carbon dioxide (CO2) > 50 millimeters (mm) mercury (Hg) (0 replaced with 0.0001)
lgpctco2g50_0
under Sleep Monitoring/Polysomnography/Capnography in
CHAT variables
Original source: MS 003
Average end-tidal carbon dioxide (ETCO2) in non-rapid eye movement sleep (NREM) (normalized for capnograph type)
nova_est_co2avgnr
under Sleep Monitoring/Polysomnography/Capnography in
CHAT variables
Average end-tidal carbon dioxide (ETCO2) in rapid eye movement sleep (REM) (normalized for capnograph type)
nova_est_co2avgr
under Sleep Monitoring/Polysomnography/Capnography in
CHAT variables
Baseline end-tidal carbon dioxide (ETCO2) asleep (normalized for capnograph type)
nova_est_co2blslp
under Sleep Monitoring/Polysomnography/Capnography in
CHAT variables
Peak end-tidal carbon dioxide (ETCO2) asleep (normalized for capnograph type)
nova_est_co2peak
under Sleep Monitoring/Polysomnography/Capnography in
CHAT variables
Percentage Total Sleep Time (TST) where end-tidal carbon dioxide (ETCO2) > 45 millimeters (mm) mercury (Hg) (normalized for capnograph type)
nova_est_pctco2g45
under Sleep Monitoring/Polysomnography/Capnography in
CHAT variables
Percentage Total Sleep Time (TST) where end-tidal carbon dioxide (ETCO2) > 50 millimeters (mm) mercury (Hg) (normalized for capnograph type)
nova_est_pctco2g50
under Sleep Monitoring/Polysomnography/Capnography in
CHAT variables
Percentage of Total Sleep Time (TST) where end-tidal carbon dioxide (ETCO2) > 45 millimeters (mm) mercury (Hg)
pctco2g45
under Sleep Monitoring/Polysomnography/Capnography in
CHAT variables
Percentage of Total Sleep Time (TST) end-tidal carbon dioxide (ETCO2) > 50 millimeters (mm) mercury (Hg)
pctco2g50
under Sleep Monitoring/Polysomnography/Capnography in
CHAT variables
Average end-tidal carbon dioxide (ETCO2) in non-rapid eye movement sleep (NREM)
rco2avgnr
under Sleep Monitoring/Polysomnography/Capnography in
CHAT variables
Average end-tidal carbon dioxide (ETCO2) in rapid eye movement sleep (REM)
rco2avgr
under Sleep Monitoring/Polysomnography/Capnography in
CHAT variables
Baseline end-tidal carbon dioxide (ETCO2) asleep
rco2blslp
under Sleep Monitoring/Polysomnography/Capnography in
CHAT variables
Peak end-tidal carbon dioxide (ETCO2) asleep
rco2peak
under Sleep Monitoring/Polysomnography/Capnography in
CHAT variables
Percentage of Total Sleep Time (TST) where end-tidal carbon dioxide (ETCO2) > 45 millimeters (mm) mercury (Hg)
rpctco2g45
under Sleep Monitoring/Polysomnography/Capnography in
CHAT variables
Percentage of Total Sleep Time (TST) where end-tidal carbon dioxide (ETCO2) > 50 millimeters (mm) mercury (Hg)
rpctco2g50
under Sleep Monitoring/Polysomnography/Capnography in
CHAT variables
Number of desaturations per hour (Non-rapid eye movement sleep (NREM), >= 3%) change between baseline and follow-up
chg_dsnr3
under Sleep Monitoring/Polysomnography/Oxygen Saturation in
CHAT variables
Number of desaturations per hour (Rapid eye movement sleep (REM), >= 3%) change between baseline and follow-up
chg_dsrem3
under Sleep Monitoring/Polysomnography/Oxygen Saturation in
CHAT variables
Percentage of sleep time oxygen saturation (SaO2) is <= 90% change between baseline and follow-up
chg_pctsa90
under Sleep Monitoring/Polysomnography/Oxygen Saturation in
CHAT variables
Percentage of sleep time oxygen saturation (SaO2) is <= 95% change between baseline and follow-up
chg_pctsa95
under Sleep Monitoring/Polysomnography/Oxygen Saturation in
CHAT variables
Average oxygen saturation in NREM sleep from type I polysomnography
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.
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