sleep_disturbance - Search - Sleep Data - National Sleep Research Resource

Apnea-Hypopnea Index (Supine): (Apneas with no oxygen desaturation threshold used only with arousal + hypopneas with > 50% flow reduction and with no oxygen desaturation used only with arousal) / hour of sleep in supine position from type I polysomnography

rdim0ps under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in CHAT variables

Supine Respiratory Disturbance Index (RDI) at all desaturations [(total number of apneas and hypopneas in supine body position) / (hours of sleep)]

In the past month, how severe was your mood disturbance due to your RLS symptoms- for example angry, depressed, sad, anxious, or irritable?

slrlmood under Sleep Questionnaires/Parasomnia in MROS variables

Scoring respiratory events (Respiratory Disturbance Index (RDI)) unreliable

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

1=Problems with respiratory events (when due to the technical quality of the respiratory signals, distinctions between hypopneas and normal breaths are equivocal in over 20 % of scored events; also when the quality of the oximetry signal raises doubts about actual magnitude of desaturation linked with over 20 % of respiratory events (unstable baseline)

Apnea-Hypopnea Index (Non-Supine): (Apneas with no oxygen desaturation threshold used only with arousal + hypopneas with > 50% flow reduction and with no oxygen desaturation used only with arousal) / hour of sleep in non-supine position from type I polysomnography

rdim0pns under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in CHAT variables

Non-supine Respiratory Disturbance Index (RDI) at all desaturations [(total number of apneas and hypopneas in non-supine body position) / (hours of sleep)]

Polysomnogram (PSG) Scoring Notes (Sleep Heart Health Study Visit One (SHHS1)): Respiratory Disturbance Index (RDI) as assessed by scorer - total number of apnea and hypopneas associated with a >=3% desat per hour of sleep.

rdisn under Sleep Monitoring/Polysomnography/Administrative in SHHS variables

The Quality Assessment forms were completed by the scorer during preliminary review of the study, finalized after final scoring