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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 ... be that a patient's AHI is actually above or ... interval around a patient's AHI. Results provide evidence that ...
XML annotations do not match AHI
Reply by raphaelvallat on October 30, 2023 on Forum
... able to re-calculate the AHI reported in ccshs-trec-harmonized-0.7.0.csv from ... is 490 minutes. The AHI should be 60 * ... events / hour. However,the AHI values are much lower ...
Questions about SHHS on sleep AHI data
Reply by JaHyungKoo on April 15, 2022 on Forum
... information. Apnea Hypopnea Index (AHI) has 4-stages below: -None/Minimal: AHI < 5 per hour / -Mild: AHI ≥ 5, but < ... 15 per hour/ -Moderate: AHI ≥ 15, but < ... 30 per hour/ -Severe: AHI ≥ 30 per hour ...
Apnea-Hypopnea Index: (All apneas with no 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
ahi_ap0uhp3x3r_f1t1 under Sleep Monitoring/Polysomnography in ABC 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: (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
Apnea-Hypopnea Index (AHI): (All apneas with no oxygen desaturation threshold used + hypopneas with > 30% flow reduction and with >= 4% oxygen desaturation ) / hour of sleep from type I polysomnography or type III home sleep test
ahi under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in HOMEPAP variables
Composite AHI based on the diagnostic sleep study and home sleep study.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 with no oxygen desaturation threshold used + hypopneas with > 30% flow reduction and with >= 4% oxygen desaturation) / hour of estimated sleep from type III home sleep apnea test
ahi_ap0nhp3x4n_f1t3 under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in NUMOM2B 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 with >= 4% oxygen desaturation + hypopneas with > 30% flow reduction and with >= 4% oxygen desaturation) / hour of estimated sleep from type III home sleep apnea test
ahi_ap4nhp3x4n_f1t3 under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in NUMOM2B 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
3-03-chat-data-analysis-tip-sheet.md
Childhood Adenotonsillectomy Trial
... 1418 | Filtered: CHAT AHI (Obstructive apneas all desats, ... | Filtered: Non-REM CHAT AHI (Obstructive apneas all desats, ... | Filtered: REM CHAT AHI (Obstructive apneas all desats, ...
AHI definition in SHHS
Reply by mrueschman on August 14, 2019 on Forum
... used as the primary AHI indicator in SHHS, though ... different variables ("components" for AHI calculations) representing counts of ... I want a "total AHI" (all hypopneas) I might ...
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 HOMEPAP 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: at Baseline
Apnea-Hypopnea Index (AHI) (split-night, diagnostic): (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_d under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in HOMEPAP 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 (AHI) (full-night): (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_full under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in HOMEPAP 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 (AHI) (split-night, treatment): (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_t under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in HOMEPAP 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
Matt Butler - Researcher Showcase
Posted by remomueller on June 11, 2015 in Showcase
... of sleep (apnea-hypopnea index, AHI). This metric fails to ... event duration can outperform AHI in predicting risk, especially ... even for a particular AHI (Figure 1). Event duration ...
Missing values in shhs1-dataset-0.7.0.cs
Reply by alexandertataraidze on November 25, 2015 on Forum
... records in shhs1 with AHI < 5. There isn't AHI parameters in shhs1-dataset-0.7.0.csv, but ... can calculate it as AHI = cai4p + oahi. ... calculate cai4p, oahi and AHI for every record in ...
Healthy participants in SHHS data
Reply by mrueschman on March 28, 2019 on Forum
... stratify by Apnea-Hypopnea Index (AHI) severity, then AHI_A0H3 is an AHI variable that is very ... of variations of the AHI for different research purposes, ...
AHI definition in SHHS
Reply by jbehar on August 13, 2019 on Forum
... and how far the AHI was from ahi_a0h3a? Definition ...
Respiratory events screening
Reply by CC on October 14, 2022 on Forum
... the event. However, the ahi calculated in this way ... from ahi_a0h3, and most ahi are smaller than ahi_a0h3. ...
Apnea-Hypopnea Index: (All 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_ap0uhp3x3u_f1t1 under Sleep Monitoring/Polysomnography in ABC variables
Calculated - Summary metric of sleep disordered breathing events.
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 or with arousal) / hour of sleep from type I polysomnography
ahi_ap0uhp3x4r_f1t1 under Sleep Monitoring/Polysomnography in ABC variables
Calculated - Summary metric of sleep disordered breathing events.
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
Apnea-Hypopnea Index : (All apneas + hypopneas with >= 3% oxygen desaturation) / hour of sleep
nsrr_ahi_hp3u under Harmonized/Polysomnography/Apnea-Hypopnea Indices in CFS variables
Harmonized by the NSRR team. Refer to the source for detailed definition for respiratory events: :ahi_a0h3: at Visit 5
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 CFS variables
Harmonized by the NSRR team. Refer to the source for detailed definition for respiratory events: :ahi_a0h4a: at Visit 5
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 CFS 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: at Visit 5
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