slpprdp - Search - Sleep Data - National Sleep Research Resource

Central Apnea Index: (Central apneas with >= 4% oxygen desaturation and with or without arousal) / hour of sleep from type II polysomnography

cai4p under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in SOF variables

Calculated - Summary metric of sleep disordered breathing events

Central Apnea Index: (Central apneas with >= 4% oxygen desaturation or with arousal) / hour of sleep from type II polysomnography

cai4pa under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in SOF variables

Calculated - Summary metric of sleep disordered breathing events

Obstructive Apnea Index: (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal) / hour of sleep from type II polysomnography

oai0p under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in SOF variables

Obstructive Apnea Index: (Obstructive apneas with >= 4% oxygen desaturation and with or without arousal) / hour of sleep from type II polysomnography

oai4p under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in SOF variables

Obstructive Apnea Index: (Obstructive apneas with >= 4% oxygen desaturation or with arousal) / hour of sleep from type II polysomnography

oai4pa under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in SOF variables

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

rdi0p under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in SOF variables

Calculated - Summary metric of sleep disordered breathing events

Apnea-Hypopnea Index: Apneas with no oxygen desaturation threshold used and only with arousal+ hypopneas with > 30% flow reduction and with no oxygen desaturation used and only with arousal / hour of sleep from type II polysomnography

rdi0pa under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in SOF variables

Calculated - Summary metric of sleep disordered breathing events

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

rdi2p under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in SOF variables

Calculated - Summary metric of sleep disordered breathing events

Apnea-Hypopnea Index: Apneas with >=2% oxygen desaturation or with arousal+ hypopneas with > 30% flow reduction and >=2% oxygen desaturation or with arousal / hour of sleep from type II polysomnography

rdi2pa under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in SOF variables

Calculated - Summary metric of sleep disordered breathing events

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 II polysomnography

rdi3p under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in SOF variables

Calculated - Summary metric of sleep disordered breathing events

Apnea-Hypopnea Index: Apneas with >=3% oxygen desaturation or with arousal+ hypopneas with > 30% flow reduction and >=3% oxygen desaturation or with arousal / hour of sleep from type II polysomnography

rdi3pa under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in SOF variables

Calculated - Summary metric of sleep disordered breathing events

Apnea-Hypopnea Index: Apneas with >=4% oxygen desaturation 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

rdi4p under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in SOF variables

Calculated - Summary metric of sleep disordered breathing events

Apnea-Hypopnea Index: Apneas with >=4% oxygen desaturation or with arousal+ hypopneas with > 30% flow reduction and >=4% oxygen desaturation or with arousal / hour of sleep from type II polysomnography

rdi4pa under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in SOF variables

Calculated - Summary metric of sleep disordered breathing events

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

rdi5p under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in SOF variables

Calculated - Summary metric of sleep disordered breathing events

Apnea-Hypopnea Index: Apneas with >=5% oxygen desaturation or with arousal+ hypopneas with > 30% flow reduction and >=5% oxygen desaturation or with arousal / hour of sleep from type II polysomnography

rdi5pa under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in SOF variables

Calculated - Summary metric of sleep disordered breathing events

Arousal Index: Number of arousals per hour of sleep from type II polysomnography

ai_all under Sleep Monitoring/Polysomnography/Arousals in SOF variables

Total number of arousals per hour of sleep. Ratio of count of arousals to total sleep time in hours.

Arousal Index (NREM): Number of arousals per hour of NREM sleep from type II polysomnography

ai_nrem under Sleep Monitoring/Polysomnography/Arousals in SOF variables

Total arousals in non-rapid eye movement sleep (NREM) per hours of non-rapid eye movement sleep (NREM)

Sleep Efficiency: the ratio of sleep duration (i.e. total sleep time) to in-bed period from type II polysomnography

slp_eff under Sleep Monitoring/Polysomnography/Sleep Architecture in SOF variables

Sleep duration is the interval between sleep onset time and lights on/out-bed time while asleep (i.e. total sleep time, TST), while in-bed period is the interval between lights off/in-bed time and lights on/out-bed time (i.e. time in bed, TIB).Percentage of time in bed that was spent sleeping, or the ratio of total sleep time to total time in bed, expressed as a percentage.

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 SHHS variables

Calculated - Summary metric of sleep disordered breathing events.

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

ahi_a0h3a under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in SHHS variables

Calculated - Summary metric of sleep disordered breathing events. The definition for hypopneas is consistent with the following clinical guidelines: (1) American Academy of Sleep Medicine (AASM) 2007 Manual (2012 update) (recommended). Berry RB et al. 2012 (PubMed ID:23066376), and (2) American Academy of Sleep Medicine (AASM) 2015 (recommended) [Berry RB et al. The AASM Manual for the Scoring of Sleep and Associated Events: Rules, Terminology and Technical Specifications, Version 2.2. American Academy of Sleep Medicine, Darien, IL, 2015.] Search for all AHI variables consistent with the same clinical guidelines within this dataset

Apnea-Hypopnea Index: (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_a0h4 under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in SHHS variables

Calculated - Summary metric of sleep disordered breathing events. The definition of hypopnea events is consistent with the following clinical guidelines: (1) AASM 2012 update (alternative) Berry RB et al. 2012 (PubMed ID:23066376), and (2) AASM 2015 (acceptable) [Berry RB et al. The AASM Manual for the Scoring of Sleep and Associated Events: Rules, Terminology and Technical Specifications, Version 2.2. American Academy of Sleep Medicine, Darien, IL, 2015.]. Search for all AHI variables consistent with the same clinical guidelines within this dataset

Apnea-Hypopnea Index: (Apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation or with arousal) / hour of sleep from type II polysomnography

ahi_a0h4a under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in SHHS 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 SHHS 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 or with arousal) / hour of sleep from type II polysomnography

ahi_c0h3a under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in SHHS variables

Central Apnea-Hypopnea Index: (Central 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_c0h4 under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in SHHS variables