nrem - Search - Sleep Data - National Sleep Research Resource

Hypopnea Index (NREM, Supine): (Hypopneas with > 30% flow reduction and with >= 4% oxygen desaturation or with arousal) / hour of NREM sleep in supine position from type II polysomnography

rdinba4 under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in SOF variables

Hypopnea Index (NREM, Supine): (Hypopneas with > 30% flow reduction and with >= 5% oxygen desaturation or with arousal) / hour of NREM sleep in supine position from type II polysomnography

rdinba5 under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in SOF variables

Hypopnea Index (NREM, Supine): (Hypopneas with > 30% flow reduction and with no oxygen desaturation threshold used and with or without arousal) / hour of NREM sleep in supine position from type II polysomnography

rdinbp under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in SOF variables

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

rdinbp2 under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in SOF variables

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

rdinbp3 under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in SOF variables

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

rdinbp4 under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in SOF variables

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

rdinbp5 under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in SOF variables

Hypopnea Index (NREM, Non-Supine): (Hypopneas with > 30% flow reduction and with no oxygen desaturation threshold used and with arousal only) / hour of NREM sleep in non-supine position from type II polysomnography

rdinoa under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in SOF variables

Hypopnea Index (NREM, Non-Supine): (Hypopneas with > 30% flow reduction and with >= 2% oxygen desaturation or with arousal) / hour of NREM sleep in non-supine position from type II polysomnography

rdinoa2 under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in SOF variables

Hypopnea Index (NREM, Non-Supine): (Hypopneas with > 30% flow reduction and with >= 3% oxygen desaturation or with arousal) / hour of NREM sleep in non-supine position from type II polysomnography

rdinoa3 under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in SOF variables

Hypopnea Index (NREM, Non-Supine): (Hypopneas with > 30% flow reduction and with >= 4% oxygen desaturation or with arousal) / hour of NREM sleep in non-supine position from type II polysomnography

rdinoa4 under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in SOF variables

Hypopnea Index (NREM, Non-Supine): (Hypopneas with > 30% flow reduction and with >= 5% oxygen desaturation or with arousal) / hour of NREM sleep in non-supine position from type II polysomnography

rdinoa5 under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in SOF variables

Hypopnea Index (NREM, Non-Supine): (Hypopneas with > 30% flow reduction and with no oxygen desaturation threshold used and with or without arousal) / hour of NREM sleep in non-supine position from type II polysomnography

rdinop under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in SOF variables

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 SOF variables

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 SOF variables

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 SOF variables

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 SOF variables

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

ahnrembp under Sleep Monitoring/Polysomnography/Arousals in SOF variables

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

ahnremop under Sleep Monitoring/Polysomnography/Arousals in SOF variables

Total Duration of Apneas and Hypopneas (NREM): Apneas with no oxygen desaturation threshold used and hypopneas with > 30% flow reduction and no oxygen desaturation threshold used during NREM sleep from type II polysomnography

ahntdur under Sleep Monitoring/Polysomnography/Respiratory Event Lengths in SOF variables

Total Duration of Apneas and Hypopneas (NREM, Supine): Apneas with no oxygen desaturation threshold used and hypopneas with > 30% flow reduction and no oxygen desaturation threshold used during NREM sleep in supine position from type II polysomnography

ahntdurbp under Sleep Monitoring/Polysomnography/Respiratory Event Lengths in SOF variables

Total Duration of Apneas and Hypopneas (NREM, Non-Supine): Apneas with no oxygen desaturation threshold used and hypopneas with > 30% flow reduction and no oxygen desaturation threshold used during NREM sleep in non-supine position from type II polysomnography

ahntdurop under Sleep Monitoring/Polysomnography/Respiratory Event Lengths in SOF variables

Polysomnography (PSG) Quality Assessment: Rapid eye movement sleep (REM)/Non-rapid eye movement sleep (NREM) scoring unreliable

remnrempr under Sleep Monitoring/Polysomnography/Signal Quality in SOF variables

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

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

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

Calculated - Summary metric of sleep disordered breathing events

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

cardnba2 under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in SHHS variables

Calculated - Summary metric of sleep disordered breathing events