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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
Amount of sleep included in the total thoraco-abdominal asynchrony analysis
taa_total_st
under Sleep Monitoring/Polysomnography/Thoraco-abdominal Asynchrony in
CHAT variables
Polysomnography (PSG) Quality Assessment (Sleep Heart Health Study Visit Two (SHHS2)): Wake/Sleep Scoring unreliable
wakslepr
under Sleep Monitoring/Polysomnography/Signal Quality/SHHS2 in
SHHS variables
Scorer noted that there was a problem differentiating stage wake from stage sleep.
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 end-tidal carbon dioxide (ETCO2) in non-rapid eye movement sleep (NREM)
rco2avgnr
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
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
Average end-tidal carbon dioxide (ETCO2) in non-rapid eye movement sleep (NREM)
co2avgnr
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 of sleep included in the total thoraco-abdominal asynchrony analysis
taa_total_pctst
under Sleep Monitoring/Polysomnography/Thoraco-abdominal Asynchrony in
CHAT variables
Polysomnography (PSG) Quality Assessment: Stage 1/Stage 2 scoring unreliable
stg1stg2pr
under Sleep Monitoring/Polysomnography/Signal Quality in
SOF variables
Scorer noted that there was a problem differentiating stage 1 and stage 2 sleep.
Polysomnography (PSG) Quality Assessment: Stage 2/Stage 3-4 scoring unreliable
stg2stg3pr
under Sleep Monitoring/Polysomnography/Signal Quality in
SOF variables
Scorer noted that there was a problem differentiating stage 2 and stage 3/4 sleep.
Polysomnography (PSG) Quality Assessment: Wake/Sleep scoring unreliable
wakslepr
under Sleep Monitoring/Polysomnography/Signal Quality in
SOF variables
Scorer noted that there was a problem differentiating stage wake from stage sleep.
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
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
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 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)
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
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
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
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
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
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
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