nrem - Search - Sleep Data - National Sleep Research Resource - NSRR

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Hypopnea Index (NREM, Non-Supine): (Hypopneas with > 30% flow reduction and with >= 2% oxygen desaturation and with or without arousal) / hour of NREM sleep in non-supine position from type II polysomnography

rdinop2 under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in SHHS variables

Calculated - Summary metric of sleep disordered breathing events

Hypopnea Index (NREM, Non-Supine): (Hypopneas with > 30% flow reduction and with >= 3% oxygen desaturation and with or without arousal) / hour of NREM sleep in non-supine position from type II polysomnography

rdinop3 under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in SHHS variables

Calculated - Summary metric of sleep disordered breathing events

Hypopnea Index (NREM, Non-Supine): (Hypopneas with > 30% flow reduction and with >= 4% oxygen desaturation and with or without arousal) / hour of NREM sleep in non-supine position from type II polysomnography

rdinop4 under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in SHHS variables

Calculated - Summary metric of sleep disordered breathing events

Hypopnea Index (NREM, Non-Supine): (Hypopneas with > 30% flow reduction and with >= 5% oxygen desaturation and with or without arousal) / hour of NREM sleep in non-supine position from type II polysomnography

rdinop5 under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in SHHS variables

Calculated - Summary metric of sleep disordered breathing events

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

rdinr0p under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in SHHS variables

Calculated - Summary metric of sleep disordered breathing events

Apnea-Hypopnea Index (NREM): Apneas with >= 2% oxygen desaturation and with or without arousal+ hypopneas with > 30% flow reduction and with >= 2% oxygen desaturation and with or without arousal / hour of NREM sleep from type II polysomnography

rdinr2p under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in SHHS variables

Calculated - Summary metric of sleep disordered breathing events

Apnea-Hypopnea Index (NREM): Apneas with >= 3% oxygen desaturation and with or without arousal+ hypopneas with > 30% flow reduction and with >= 3% oxygen desaturation and with or without arousal / hour of NREM sleep from type II polysomnography

rdinr3p under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in SHHS variables

Calculated - Summary metric of sleep disordered breathing events

Apnea-Hypopnea Index (NREM): Apneas with >= 4% oxygen desaturation and with or without arousal+ hypopneas with > 30% flow reduction and with >= 4% oxygen desaturation and with or without arousal / hour of NREM sleep from type II polysomnography

rdinr4p under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in SHHS variables

Calculated - Summary metric of sleep disordered breathing events

Apnea-Hypopnea Index (NREM): Apneas with >= 5% oxygen desaturation and with or without arousal+ hypopneas with > 30% flow reduction and with >= 5% oxygen desaturation and with or without arousal / hour of NREM sleep from type II polysomnography

rdinr5p under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in SHHS variables

Calculated - Summary metric of sleep disordered breathing events

Arousal Index (NREM, Supine): Arousals per hour of NREM sleep in supine position from type II polysomnography

ahnrembp under Sleep Monitoring/Polysomnography/Arousals in SHHS variables

Arousal Index (NREM, Non-Supine): Arousals per hour of NREM sleep in non-supine position from type II polysomnography

ahnremop under Sleep Monitoring/Polysomnography/Arousals in SHHS variables

Polysomnography (PSG) Quality Assessment (Sleep Heart Health Study Visit Two (SHHS2)): rapid eye movement sleep (REM)/non-rapid eye movement sleep (NREM) Scoring unreliable

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

Scorer noted that there was a problem differentiating rapid eye movement sleep (REM) and non-rapid eye movement sleep (NREM).

Oxygen Desaturation Index (NREM): Oxygen desaturation associated with respiratory events per hour of NREM sleep from type I polysomnography

desatindexnrem under Sleep Monitoring/Polysomnography/Oxygen Saturation in APPLES variables

Apnea-Hypopnea Index (NREM): (All apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 50% flow reduction and without oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with >= 3% oxygen desaturation or with arousal) / hour of NREM sleep from type I polysomnography

rdinrempsg under Sleep Monitoring/Polysomnography/Respiratory Event Counts in APPLES variables

Percentage of sleep duration in NREM sleep associated with oxygen saturation less than 85% from type I polysomnography

perspo2lt85tstnrem under Sleep Monitoring/Polysomnography/Sleep Architecture in APPLES variables

PSG Percent of NREM Total Sleep Time Oxygen Saturation Less than 85%

Central Apnea Index (NREM, Non-Supine) : (Central apneas with no oxygen desaturation threshold used only with arousal) / hour of NREM sleep in non-supine position from type I polysomnography

cardnoa under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in CHAT variables

Calculated - Summary metric of sleep disordered breathing events.

Central Apnea Index (NREM, Non-Supine) : (Central apneas with >= 2% oxygen desaturation or with arousal) / hour of NREM sleep in non-supine position from type I polysomnography

cardnoa2 under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in CHAT variables

Calculated - Summary metric of sleep disordered breathing events.

Central Apnea Index (NREM, Non-Supine) : (Central apneas with >= 3% oxygen desaturation or with arousal) / hour of NREM sleep in non-supine position from type I polysomnography

cardnoa3 under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in CHAT variables

Calculated - Summary metric of sleep disordered breathing events.

Central Apnea Index (NREM, Non-Supine) : (Central apneas with >= 4% oxygen desaturation or with arousal) / hour of NREM sleep in non-supine position from type I polysomnography

cardnoa4 under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in CHAT variables

Calculated - Summary metric of sleep disordered breathing events.

Central Apnea Index (NREM, Non-Supine) : (Central apneas with >= 5% oxygen desaturation or with arousal) / hour of NREM sleep in non-supine position from type I polysomnography

cardnoa5 under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in CHAT variables

Calculated - Summary metric of sleep disordered breathing events.

Central Apnea Index (NREM, Non-Supine) : (Central apneas with no oxygen desaturation threshold used and with or without arousal) / hour of NREM sleep in non-supine position from type I polysomnography

cardnop under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in CHAT variables

Calculated - Summary metric of sleep disordered breathing events.

Central Apnea Index (NREM, Non-Supine) : (Central apneas with >= 2% oxygen desaturation and with or without arousal) / hour of NREM sleep in non-supine position from type I polysomnography

cardnop2 under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in CHAT variables

Calculated - Summary metric of sleep disordered breathing events.

Central Apnea Index (NREM, Non-Supine) : (Central apneas with >= 3% oxygen desaturation and with or without arousal) / hour of NREM sleep in non-supine position from type I polysomnography

cardnop3 under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in CHAT variables

Calculated - Summary metric of sleep disordered breathing events.

Central Apnea Index (NREM, Non-Supine) : (Central apneas with >= 4% oxygen desaturation and with or without arousal) / hour of NREM sleep in non-supine position from type I polysomnography

cardnop4 under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in CHAT variables

Calculated - Summary metric of sleep disordered breathing events.

Central Apnea Index (NREM, Non-Supine) : (Central apneas with >= 5% oxygen desaturation and with or without arousal) / hour of NREM sleep in non-supine position from type I polysomnography

cardnop5 under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in CHAT variables

Calculated - Summary metric of sleep disordered breathing events.