hnrbp3 - Search - Sleep Data - National Sleep Research Resource

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

ahi_c0h3 under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in CCSHS 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 with >= 3% oxygen desaturation and with or without arousal) / hour of sleep from type I polysomnography

ahi_o0h3 under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in CCSHS 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 >= 3% oxygen desaturation and with or without arousal) / hour of sleep from type I polysomnography

oahi3 under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in CCSHS variables

Ratio of the count of all obstructive apneas (all desaturations) plus the count of hypopneas associated with at least a >=3% oxygen desaturation to the total sleep time expressed in hours.

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

rdi3p under Sleep Monitoring/Polysomnography/Sleep Architecture in CCSHS variables

[(total number of apneas and hypopneas associated with >= 3% oxygen desaturation) / (hours of sleep)]

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

ahi_a0h3 under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in CHAT variables

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

ahi_c0h3 under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in CHAT 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 > 50% flow reduction and >= 3% oxygen desaturation and with or without arousal) / hour of sleep from type I polysomnography

ahi_o0h3 under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in CHAT variables

Calculated - Summary metric of sleep disordered breathing events.

Apnea-Hypopnea Index: (Apneas with >= 3% oxygen desaturation threshold used and with or without arousal+ hypopneas with > 50% flow reduction and with >= 3% oxygen desaturation used and with or without arousal) / hour of sleep from type I polysomnography

rdim3p under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in CHAT variables

[(total number of apneas and hypopneas associated with >= 3% desaturation) / (hours of sleep)]

Apnea-Hypopnea Index (Supine): (Apneas with >= 3% oxygen desaturation threshold used and with or without arousal+ hypopneas with > 50% flow reduction and with >= 3% oxygen desaturation used and with or without arousal) / hour of sleep in supine from type I polysomnography

rdim3ps under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in CHAT variables

[(total number of apneas and hypopneas in supine body position associated with >= 3% desaturation) / (hours of sleep)]. will be missing if no time supine or low position sensor quality.

Apnea-Hypopnea Index (NREM): (Apneas with >= 3% oxygen desaturation threshold used and with or without arousal+ hypopneas with > 50% flow reduction and with >= 3% oxygen desaturation used and with or without arousal) / hours of NREM sleep from type I polysomnography

rdimnr3p under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in CHAT variables

[(total number of apneas and hypopneas in non-rapid eye movement sleep (NREM) associated with >= 3% desaturation) / (hours of non-rapid eye movement sleep (NREM))]

Apnea-Hypopnea Index: (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) / hour of sleep from type II polysomnography

ahi_a0h3 under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in MESA variables

Calculated - Summary metric of sleep disordered breathing events.

Central Apnea-Hypopnea Index: (Central 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) / hour of sleep from type II polysomnography

ahi_c0h3 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 >= 3% oxygen desaturation and with or without arousal) / hour of sleep from type II polysomnography

ahi_o0h3 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 and with or without arousal) / hour of sleep from type II polysomnography

ahi_o0h4 under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in MESA variables

Calculated - Summary metric of sleep disordered breathing events.