psg - Search - Sleep Data - National Sleep Research Resource

PSG Quality Assessment: Medical Alert - HR > 150

hrov150 under Sleep Monitoring/Polysomnography/Signal Quality in CFS variables

Medical Alert for heart rate over 150.

PSG Quality Assessment: Medical Alert - HR < 30

hrund30 under Sleep Monitoring/Polysomnography/Signal Quality in CFS variables

Medical Alert for heart rate under 30.

Polysomnography (PSG) Quality Assessment: Periodic breathing (10 minutes)

lagbreath under Sleep Monitoring/Polysomnography/Signal Quality in CFS variables

Scorer observed periodic breathing for a period of at least 10 minutes during study.

PSG Scoring Notes: Sleep latency reliability

latreliable under Sleep Monitoring/Polysomnography/Signal Quality in CFS variables

Scorer assessed that sleep latency was reliable.

PSG Quality Assessment: Data Lost at beginning of study

losbeg under Sleep Monitoring/Polysomnography/Signal Quality in CFS variables

Data was lost at the beginning of study due to unscorable signals.

PSG Quality Assessment: Data Lost during study

losdur under Sleep Monitoring/Polysomnography/Signal Quality in CFS variables

Data was lost during the study.

PSG Quality Assessment: Data Lost at end of study

losend under Sleep Monitoring/Polysomnography/Signal Quality in CFS variables

Data was lost at end of study due to unscorable signals.

PSG Quality Assessment: Long respiratory events verified

maxresou under Sleep Monitoring/Polysomnography/Signal Quality in CFS variables

If a respiratory event greater than 150 seconds in duration was observed, scorer has verified that this value is real.

PSG Quality Assessment: Scoring Notes

notes under Sleep Monitoring/Polysomnography/Signal Quality in CFS variables

Scorer notes

PSG Quality Assessment: Other outlier

otherou under Sleep Monitoring/Polysomnography/Signal Quality in CFS variables

Scorer observed other outlying values.

PSG Quality Assessment: hours of usable oximetry

oximdur under Sleep Monitoring/Polysomnography/Signal Quality in CFS variables

Number of hours of usable signal from oximeter as assessed by scorer.

PSG Quality Assessment: Medical Alert - SaO2 < 70

oxyund70 under Sleep Monitoring/Polysomnography/Signal Quality in CFS variables

Medical Alert for Oxygen saturation under 70.

PSG Quality Assessment: 50% of PLM's deleted

plmdel under Sleep Monitoring/Polysomnography/Signal Quality in CFS variables

PSG Quality Assessment: hours of usable pulse

pulsedur under Sleep Monitoring/Polysomnography/Signal Quality in CFS variables

Number of hours of usable signal from pulse sensor as assessed by scorer.

PSG Quality Assessment: hours of usable PWF

pwfdur under Sleep Monitoring/Polysomnography/Signal Quality in CFS variables

Number of hours of usable signal

PSG Quality Assessment: Signal Quality (abdomen effort)

quabdo under Sleep Monitoring/Polysomnography/Signal Quality in CFS variables

Overall quality of signal from abdominal effort belt during sleep as assessed by scorer.

PSG Quality Assessment: Signal Quality (airflow)

quair under Sleep Monitoring/Polysomnography/Signal Quality in CFS variables

Overall quality of signal from airflow sensor (thermistor) during sleep as assessed by scorer.

PSG Quality Assessment: Signal Quality (cannula)

qucan under Sleep Monitoring/Polysomnography/Signal Quality in CFS variables

PSG Quality Assessment: Signal Quality (chest effort)

quchest under Sleep Monitoring/Polysomnography/Signal Quality in CFS variables

Overall quality of signal from thoracic effort belt during sleep as assessed by scorer.

PSG Quality Assessment: Signal Quality (chin)

quchin under Sleep Monitoring/Polysomnography/Signal Quality in CFS variables

Overall quality of signal from chin (EMG) lead during sleep as assessed by scorer.

PSG Quality Assessment: Signal Quality (EEG 1)

queeg1 under Sleep Monitoring/Polysomnography/Signal Quality in CFS variables

Overall quality of signal from EEG1 lead during sleep as assessed by scorer.

PSG Quality Assessment: Signal Quality (EEG 2)

queeg2 under Sleep Monitoring/Polysomnography/Signal Quality in CFS variables

Overall quality of signal from EEG2 lead during sleep as assessed by scorer.

PSG Quality Assessment: Signal Quality (EOG L)

queogl under Sleep Monitoring/Polysomnography/Signal Quality in CFS variables

Overall quality of signal from left eye (EOG) lead during sleep as assessed by scorer.

PSG Quality Assessment: Signal Quality (EOG R)

queogr under Sleep Monitoring/Polysomnography/Signal Quality in CFS variables

Overall quality of signal from right eye (EOG) lead during sleep as assessed by scorer.

PSG Quality Assessment: Signal Quality (hr)

quhr under Sleep Monitoring/Polysomnography/Signal Quality in CFS variables

Overall quality of signal from heart rate (ECG) leads during sleep as assessed by scorer.