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

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

Peak end-tidal carbon dioxide (ETCO2) asleep

co2peak under Sleep Monitoring/Polysomnography/Capnography 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

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)

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

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 oxygen saturation during REM sleep from type II polysomnography

avsao2rh under Sleep Monitoring/Polysomnography/Oxygen Saturation in SHHS variables

The mean of all oxygen saturation (SaO2) values in epochs scored as stage REM (Rapid eye movement sleep).

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.

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

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.

Average oxygen saturation during NREM sleep from type II polysomnography

avsao2nh under Sleep Monitoring/Polysomnography/Oxygen Saturation in SHHS variables

The mean of all oxygen saturation (SaO2) values in epochs scored as stages other than rapid eye movement sleep (REM) (i.e., 1,2,3/4).

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.

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.

Study scored sleep wake = 1, all sleep scored stage 2

slewake under Sleep Monitoring/Polysomnography/Signal Quality in CHAT variables

1=Study scored sleep wake

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.