flow - Search - Sleep Data - National Sleep Research Resource

Obstructive Apnea Hypopnea Index (Supine): (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation and with or without arousal) / hour of sleep in supine position from type II polysomnography

oahi4_sup5 under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in MESA variables

Calculated - Summary metric of sleep disordered breathing events

Obstructive Apnea Hypopnea Index: (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation or with arousal) / hour of sleep from type II polysomnography

oahi4pa5 under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in MESA variables

Calculated - Summary metric of sleep disordered breathing events

Obstructive Apnea Hypopnea Index (NREM): (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation or with arousal) / hour of NREM sleep from type II polysomnography

oahi4pa_nrem5 under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in MESA variables

Obstructive Apnea Hypopnea Index (Non-Supine): (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation or with arousal) / hour of sleep in non-supine position from type II polysomnography

oahi4pa_nsup5 under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in MESA variables

Obstructive Apnea Hypopnea Index (REM): (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation or with arousal) / hour of REM sleep from type II polysomnography

oahi4pa_rem5 under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in MESA variables

Obstructive Apnea Hypopnea Index (Supine): (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation or with arousal) / hour of sleep in supine position from type II polysomnography

oahi4pa_sup5 under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in MESA variables

Average length of hypopneas with 30 - 50% flow reduction and no oxygen desaturation threshold used and with or without arousal from type II polysomnography

havgdur5 under Sleep Monitoring/Polysomnography/Respiratory Event Lengths in MESA variables

Average length of hypopneas with > 30% flow reduction and no oxygen desaturation threshold used and with or without arousal from type II polysomnography

hbavgdur5 under Sleep Monitoring/Polysomnography/Respiratory Event Lengths in MESA variables

Maximum length of hypopneas with 30 - 50% flow reduction and no oxygen desaturation threshold used and with or without arousal from type II polysomnography

longhyp5 under Sleep Monitoring/Polysomnography/Respiratory Event Lengths in MESA variables

Maximun length of hypopneas with > 30% flow reduction and no oxygen desaturation threshold used and with or without arousal from type II polysomnography

longhypb5 under Sleep Monitoring/Polysomnography/Respiratory Event Lengths in MESA variables

Percentage of total sleep duration: (apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and > 3% oxygen desaturation and with or without arousal) from type II polysomnography

pcohb3slp5 under Sleep Monitoring/Polysomnography/Respiratory Event Lengths in MESA variables

pcohb3waslp5 under Sleep Monitoring/Polysomnography/Respiratory Event Lengths in MESA variables

Percentage of total sleep duration: (apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with no oxygen desaturation threhold or with arousal) from type II polysomnography

pcohbwaslp5 under Sleep Monitoring/Polysomnography/Respiratory Event Lengths in MESA variables

Percentage of total sleep duration: (apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with 30 - 50% flow reduction and >= 3% oxygen desaturation and with or without arousal) from type II polysomnography

pcstah3d5 under Sleep Monitoring/Polysomnography/Respiratory Event Lengths in MESA variables

Percent total sleep duration with apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with 30 - 50% flow reduction and no oxygen desaturation threshold used or with arousal from type II polysomnography

pcstahar5 under Sleep Monitoring/Polysomnography/Respiratory Event Lengths in MESA variables

pcstahda5 under Sleep Monitoring/Polysomnography/Respiratory Event Lengths in MESA variables

Percentage of total sleep duration with hypopneas with 30 - 50% flow reduction and no oxygen desaturation threshold used and with or without arousal from type II polysomnography

pctsthyp5 under Sleep Monitoring/Polysomnography/Respiratory Event Lengths in MESA variables

Percentage of total sleep duration with hypopneas with > 30% flow reduction and with no oxygen desaturation threhold or with arousal from type II polysomnography

phbslp5 under Sleep Monitoring/Polysomnography/Respiratory Event Lengths in MESA variables

Flow Limitation from type II polysomnography

npflow5 under Sleep Monitoring/Polysomnography/Signal Quality in MESA variables

Cannula Flow Signal Quality from type II polysomnography

quxflow5 under Sleep Monitoring/Polysomnography/Signal Quality in MESA variables

Cannula Flow Signal Duration (Hours) from type II polysomnography

xflowdur5 under Sleep Monitoring/Polysomnography/Signal Quality in MESA variables

montage-and-sampling-rate-information.md

Hispanic Community Health Study / Study of Latinos

Montage and sampling rate information The settings below represent the ...

6-40-mop-quality-assurance-and-control.md

Sleep Heart Health Study

... into the normal work flow to minimize their likelihood ...

6-627-mop-scoring-respiratory-events.md

Sleep Heart Health Study

... prolonged periods of “no flow”, but changes in inductance ...

3-01-02-display-montage.md

Childhood Adenotonsillectomy Trial

... * | | Nasal/Oral Flow | Bipolar | Airflow ...