apnea - Search - Sleep Data - National Sleep Research Resource

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

rdirbp5 under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in SHHS variables

Calculated - Summary metric of sleep disordered breathing events

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

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

Calculated - Summary metric of sleep disordered breathing events

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

rdiroa2 under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in SHHS variables

Calculated - Summary metric of sleep disordered breathing events

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

rdiroa3 under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in SHHS variables

Calculated - Summary metric of sleep disordered breathing events

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

rdiroa4 under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in SHHS variables

Calculated - Summary metric of sleep disordered breathing events

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

rdiroa5 under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in SHHS variables

Calculated - Summary metric of sleep disordered breathing events

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

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

Calculated - Summary metric of sleep disordered breathing events

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

rdirop2 under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in SHHS variables

Calculated - Summary metric of sleep disordered breathing events

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

rdirop3 under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in SHHS variables

Calculated - Summary metric of sleep disordered breathing events

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

rdirop4 under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in SHHS variables

Calculated - Summary metric of sleep disordered breathing events

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

rdirop5 under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in SHHS variables

Calculated - Summary metric of sleep disordered breathing events

Total number of obstructive apneas with no oxygen desaturation threshold used and with or without arousal during REM sleep in non-supine position from type II polysomnography

oarop under Sleep Monitoring/Polysomnography/Respiratory Event Counts in SHHS variables

Sleep Habits (Sleep Heart Health Study Visit One (SHHS1)): Frequency of stopping breathing during sleep

hostbr02 under Sleep Questionnaires/Sleep Disordered Breathing in SHHS variables

How often do you have times when you stop breathing during your sleep? 1=Rarely-less than 1night/wk, 2=Sometimes-1 or 2nights/wk, 3=Frequently-3 to 5nights/wk, 4=Always or almost always-6 or 7nights/wk, 8=Don't know

Sleep Habits (Sleep Heart Health Study Visit Two (SHHS2)): Stop breathing during sleep

sh314 under Sleep Questionnaires/Sleep Disordered Breathing in SHHS variables

Questions 9 through 15 are about snoring and breathing during sleep. To answer these questions, please consider both what others have told you AND what you know about yourself. 14. Are there times when you stop breathing during your sleep?ng

Interim Follow-up: Stopped breathing during sleep

stopbreathing under Sleep Questionnaires/Sleep Disordered Breathing in SHHS variables

Sleep Habits (Sleep Heart Health Study Visit One (SHHS1)): Stop breathing during sleep

stpbrt02 under Sleep Questionnaires/Sleep Disordered Breathing in SHHS variables

Are there times when you stop breathing during your sleep?

Hypopnea Index: (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 sleep from type I polysomnography

hypindextstpsg under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in APPLES variables

Calculated - Summary metric of sleep disordered breathing events. The definition of hypopnea events is consistent with the following clinical guidelines: American Academy of Sleep Medicine (AASM) Chicago 1999 standard. Sleep 1999 (PubMed ID:10450601) Search for all AHI variables consistent with the same clinical guidelines within this dataset

Total number of respiratory events in REM from type I polysomnography

rdirempsgnum under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in APPLES variables

Hypopnea Index: Hypopneas with > 50% flow reduction and >= 3% oxygen desaturation or with arousal / hour of sleep from type I polysomnography

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

Calculated - Summary metric of sleep disordered breathing events. The definition of hypopnea events is consistent with the American Academy of Sleep Medicine (AASM) 2007 Manual (pediatric). [Iber C et al. The AASM manual for the scoring of sleep and associated events: rules, terminology and technical specifications. Vol. 1. Westchester, IL: American Academy of Sleep Medicine, 2007] Search for all AHI variables consistent with the clinical guidelines within this dataset

Hypopnea Index (NREM, Supine) : (Hypopneas with > 50% flow reduction and with no oxygen desaturation threshold used only with arousal) / hour of NREM sleep in supine position from type I polysomnography

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

Calculated - Summary metric of sleep disordered breathing events.

Hypopnea Index (NREM, Supine) : (Hypopneas with > 50% flow reduction and with >= 2% oxygen desaturation or with arousal) / hour of NREM sleep in supine position from type I polysomnography

rdinba2 under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in CHAT variables

Calculated - Summary metric of sleep disordered breathing events.

Hypopnea Index (NREM, Supine) : (Hypopneas with > 50% flow reduction and with >= 3% oxygen desaturation or with arousal) / hour of NREM sleep in supine position from type I polysomnography

rdinba3 under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in CHAT variables

Calculated - Summary metric of sleep disordered breathing events.

Hypopnea Index (NREM, Supine) : (Hypopneas with > 50% flow reduction and with >= 4% oxygen desaturation or with arousal) / hour of NREM sleep in supine position from type I polysomnography

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

Calculated - Summary metric of sleep disordered breathing events.

Hypopnea Index (NREM, Supine) : (Hypopneas with > 50% flow reduction and with >= 5% oxygen desaturation or with arousal) / hour of NREM sleep in supine position from type I polysomnography

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

Calculated - Summary metric of sleep disordered breathing events.

Hypopnea Index (NREM, Supine) : (Hypopneas with > 50% flow reduction and with no oxygen desaturation threshold used and with or without arousal) / hour of NREM sleep in supine position from type I polysomnography

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

Calculated - Summary metric of sleep disordered breathing events.