non-rapid eye movement sleep - Search - Sleep Data - National Sleep Research Resource

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

Peak end-tidal carbon dioxide (ETCO2) asleep

rco2peak under Sleep Monitoring/Polysomnography/Capnography 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)

Peak end-tidal carbon dioxide (ETCO2) asleep

co2peak under Sleep Monitoring/Polysomnography/Capnography in CHAT variables

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)

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 Total Sleep Time (TST) end-tidal carbon dioxide (ETCO2) > 50 millimeters (mm) mercury (Hg)

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

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)

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

Percentage of sleep included in the total thoraco-abdominal asynchrony analysis

taa_total_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

Polysomnography (PSG) Quality Assessment (Sleep Heart Health Study Visit Two (SHHS2)): Stage2/Stage3-4 Scoring unreliable

stg2stg3pr under Sleep Monitoring/Polysomnography/Signal Quality/SHHS2 in SHHS variables

Scorer noted that there was a problem differentiating stage 2 and stage 3/4 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

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

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

Polysomnography (PSG) Quality Assessment (Sleep Heart Health Study Visit Two (SHHS2)): Stage1/Stage2 Scoring unreliable

stg1stg2pr under Sleep Monitoring/Polysomnography/Signal Quality/SHHS2 in SHHS variables

Scorer noted that there was a problem differentiating stage 1 and stage 2 sleep.

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

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.