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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 or with arousal) / hour of sleep from type I polysomnography
ahi_c0h3a 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
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 or with arousal) / hour of sleep from type I polysomnography
ahi_o0h3a 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: 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
Childhood Adenotonsillectomy Trial (CHAT) Apnea-Hypopnea Index (AHI) - Obstructive and Mixed Apnea-Hypopnea Index (Supine): (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ mixed apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 50% flow reduction and >= 3% oxygen desaturation or arousal) / hour of sleep in supine position from type I polysomnography
omahi3b under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in CHAT variables
Calculated - Summary metric of sleep disordered breathing events. Will be missing if Total Sleep Time (TST) is 0.
Childhood Adenotonsillectomy Trial (CHAT) Apnea-Hypopnea Index (AHI) - Obstructive and Mixed Apnea-Hypopnea Index (NREM): (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ mixed apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 50% flow reduction and >= 3% oxygen desaturation or arousal) / hour of NREM sleep from type I polysomnography
omahi3nr under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in CHAT variables
Calculated - Summary metric of sleep disordered breathing events. Will be missing if Total Sleep Time (TST) is 0.
Childhood Adenotonsillectomy Trial (CHAT) Apnea-Hypopnea Index (AHI) - Obstructive and Mixed Apnea-Hypopnea Index (Non-Supine): (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ mixed apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 50% flow reduction and >= 3% oxygen desaturation or arousal) / hour of sleep in non-supine position from type I polysomnography
omahi3o under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in CHAT variables
Calculated - Summary metric of sleep disordered breathing events. Will be missing if Total Sleep Time (TST) is 0.
Childhood Adenotonsillectomy Trial (CHAT) Apnea-Hypopnea Index (AHI) - Obstructive and Mixed Apnea-Hypopnea Index (REM): (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ mixed apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 50% flow reduction and >= 3% oxygen desaturation or arousal) / hour of REM sleep from type I polysomnography
omahi3r under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in CHAT variables
Calculated - Summary metric of sleep disordered breathing events. Will be missing if Total Sleep Time (TST) is 0.
Apnea-Hypopnea Index : (All apneas + hypopneas with >=30% nasal cannula [or alternative sensor] reduction with >= 4% oxygen desaturation) / hour of sleep
nsrr_ahi_hp4u_aasm15 under Harmonized/Polysomnography/Apnea-Hypopnea Indices in MESA variables
Harmonized by the NSRR team.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.]. Refer to the source for detailed definition for respiratory events: :ahi_a0h4:
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 MESA 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
polysomnography-introduction.md
MrOS Sleep Study
... Translator Releases page. ## Hypopnea event tags Hypopnea events are represented by ... files. Events with the Hypopnea tag are hypopneas with ...
polysomnography-introduction.md
Multi-Ethnic Study of Atherosclerosis
... Translator Releases page. ## Hypopnea event tags Hypopnea events are represented by ... files. Events with the Hypopnea tag are hypopneas with ...
polysomnography-introduction.md
Apnea, Bariatric surgery, and CPAP study
... Translator Releases page. ## Hypopnea event tags Hypopnea events are represented by ... files. Events with the Hypopnea tag are hypopneas with ...
3-02-condensed-data-dictionary.md
Childhood Adenotonsillectomy Trial
... most critical for accurate hypopnea detection and staging. - ... studies where apnea vs hypopnea distinction is unreliable. Since ... to distinguish Apnea vs Hypopnea events, respectively. Potential Use ...
AHI Uncertainty: How Many Patients are Being Denied Treatment Due to Chance?
Posted by michaelprerau on November 16, 2020 in Showcase
A patient's apnea-hypopnea index (AHI) determines whether or not they ...
AHI to resemble AASM 2012 rules
Reply by margotdeviaene on April 21, 2017 on Forum
... an arousal. Furthermore, the hypopnea counts only take hypopneas ... case is there a hypopnea count available which includes ...
Signal for hypopnea scoring
Reply by TKarhu on April 4, 2019 on Forum
... AASM rules state that hypopnea scoring should be done ... signal(s) were used at hypopnea scoring, but almost half ... signals were used at hypopnea scorings. I am matching ...
"Unsure" respiratory event annotations
Reply by wganglberger on November 10, 2021 on Forum
... for MrOS data: https://sleepdata.org/datasets/mros/pages/polysomnography-introduction.md Hypopnea event tags Hypopnea events are represented by ... files. Events with the Hypopnea tag are hypopneas with ...
Questions about SHHS on sleep AHI data
Reply by JaHyungKoo on April 15, 2022 on Forum
... "shhs-data-dictionary-0.18.0-variables.csv" file information. Apnea Hypopnea Index (AHI) has 4-stages ...
Apnea-Hypopnea Index : (All apneas + hypopneas with >=30% nasal cannula [or alternative sensor] reduction and >= 3% oxygen desaturation or with arousal) / hour of sleep
nsrr_ahi_hp3r_aasm15 under Harmonized/Polysomnography/Apnea-Hypopnea Indices in ABC variables
Harmonized by the NSRR team. 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.] Refer to the source for detailed definition for respiratory events: :ahi_ap0uhp3x3r_f1t1:
Apnea-Hypopnea Index : (All apneas + hypopneas with >= 3% oxygen desaturation) / hour of sleep
nsrr_ahi_hp3u under Harmonized/Polysomnography/Apnea-Hypopnea Indices in ABC variables
Harmonized by the NSRR team. Refer to the source for detailed definition for respiratory events: :ahi_ap0uhp3x3u_f1t1:
Apnea-Hypopnea Index : (All apneas + hypopneas with >= 4% oxygen desaturation or with arousal) / hour of sleep
nsrr_ahi_hp4r under Harmonized/Polysomnography/Apnea-Hypopnea Indices in ABC variables
Harmonized by the NSRR team. Refer to the source for detailed definition for respiratory events: :ahi_ap0uhp3x4r_f1t1:
Apnea-Hypopnea Index: (All apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with >= 4% oxygen desaturation and with or without arousal) / hour of sleep from type I polysomnography
ahi_ap0uhp3x4u_f1t1 under Sleep Monitoring/Polysomnography in ABC 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
Central Apnea-Hypopnea Index: (Central apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with > 4% desaturation and with or without arousal) / hour of sleep from type I polysomnography
cahi_ca0uhp3x4u_f1t1 under Sleep Monitoring/Polysomnography in ABC 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
Obstructive Apnea-Hypopnea Index: (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with >= 4% oxygen desaturation and with or without arousal) / hour of sleep from type I polysomnography
oahi_oa0uhp3x4u_f1t1 under Sleep Monitoring/Polysomnography in ABC 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 : (All apneas + hypopneas with >=30% nasal cannula [or alternative sensor] reduction and >= 3% oxygen desaturation or with arousal) / hour of sleep
nsrr_ahi_hp3r_aasm15 under Harmonized/Polysomnography/Apnea-Hypopnea Indices in CFS variables
Harmonized by the NSRR team. 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.] Refer to the source for detailed definition for respiratory events: :ahi_a0h3a: at Visit 5
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