apnea-hypopnea index - Search - Sleep Data - National Sleep Research Resource

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 (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.

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 (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: (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 from type I polysomnography

omahi3 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

Questions about SHHS on sleep AHI data

Reply by JaHyungKoo on April 15, 2022 on Forum

... on "shhs-data-dictionary-0.18.0-variables.csv" file information. Apnea Hypopnea Index (AHI) has 4-stages below: ... csv files "Central Apnea-Hypopnea Index" and "Obstructive Apnea-Hypopnea Index" ? is it different, ...

Polysomnography (PSG) Quality Assessment: Medical Alert - Apnea-Hypopnea Index (AHI) > 50

ahiov50 under Sleep Monitoring/Polysomnography/Administrative in SHHS variables

Medical Alert for Apnea-Hypopnea Index (AHI) over 50.

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 ... problem being addressed? Sleep apnea is diagnosed if a patient’s apnea-hypopnea index (AHI) falls above a ... and treatment for sleep apnea is likely being denied ...

Urgent Referral - Obstructive Apnea Index (OAI) > 20 or Apnea-Hypopnea Index (AHI) > 30 = 1 Urgent Ineligible

ahiov30 under Sleep Monitoring/Polysomnography/Signal Quality in CHAT variables

Obstructive Apnea Index (OAI) < 1 and Apnea-Hypopnea Index (AHI) < 2 (normal range) = 1 Ineligible Normal

ahilt2 under Sleep Monitoring/Polysomnography/Signal Quality in CHAT variables

Obstructive Apnea Index (OAI) > 15 or Apnea-Hypopnea Index (AHI) > 20 = 1 Surgeon Alert

ahiov20 under Sleep Monitoring/Polysomnography/Signal Quality in CHAT variables

Childhood Adenotonsillectomy Trial (CHAT) Apnea-Hypopnea Index (AHI) change between Baseline and End

omahi3_change under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in CHAT variables

Obstructive Apnea-Hypopnea Index : (Obstructive apneas + hypopneas with >= 3% oxygen desaturation) / hour of sleep

nsrr_oahi_hp3u under Harmonized/Polysomnography/Apnea-Hypopnea Indices in CCSHS variables

Harmonized by the NSRR team. Source: :ahi_o0h3:

Obstructive Apnea-Hypopnea Index : (Obstructive apneas + hypopneas with >= 4% oxygen desaturation) / hour of sleep

nsrr_oahi_hp4u under Harmonized/Polysomnography/Apnea-Hypopnea Indices in CCSHS variables

Harmonized by the NSRR team. Source: :ahi_o0h4:

Apnea-Hypopnea Index (AHI) normalized (improved) between baseline and follow-up

normalized1 under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in CHAT variables

Indicates an OMAHI3 <= 2 and OAI0P <= 1 at follow-up, whereas one or both of these thresholds were exceeded at baseline.

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

ahi2 under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in MSP variables

Obstructive Apnea-Hypopnea Index (NREM): (Obstructive 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 NREM sleep from type II polysomnography

pooah3an under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in MROS variables

Obstructive Apnea-Hypopnea Index (REM): (Obstructive 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 REM sleep from type II polysomnography

pooah3ar under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in MROS variables

Obstructive Apnea-Hypopnea Index (NREM): (Obstructive 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 NREM sleep from type II polysomnography

pooah4an under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in MROS variables

Obstructive Apnea-Hypopnea Index (REM): (Obstructive 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 REM sleep from type II polysomnography

pooah4ar under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in MROS variables

Obstructive Apnea-Hypopnea Index (NREM): (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 NREM sleep from type II polysomnography

pooahi3n under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in MROS variables

Obstructive Apnea-Hypopnea Index (REM): (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 REM sleep from type II polysomnography

pooahi3r under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in MROS variables

Obstructive Apnea-Hypopnea Index (NREM): (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 NREM sleep from type II polysomnography

pooahi4n under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in MROS variables

Obstructive Apnea-Hypopnea Index (REM): (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 REM sleep from type II polysomnography

pooahi4r under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in MROS variables

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

ahiu35 under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in MESA variables