ahi_a0h3 ahi_a0h4
Name
ahi_a0h3a
Label
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
Description

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

Calculation
ahi_a0h3a = 60 * (hremba3 + hroa3 + hnrba3 + hnroa3 + urbpa3 + uropa3 + unrbpa3 + unropa3 + carbp + carop + canbp + canop + oarbp + oarop + oanbp + oanop ) / slpprdp
Units
events per hour
Type
numeric
Tags
a0h3ai5 aasm15_recommended ahi_ap0uhp3x3r_f1t2 icsd
MESA exam number vs 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
N Mean StdDev Median Min Max Unknown Total
Exam 5 2,057 24.1 ± 19.6 18.4 0.0 112.0 180 2,237
Participant Age at MESA Sleep Visit vs 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
Exam 5
N Mean StdDev Median Min Max Unknown Total
Total 2,057 24.1 ± 19.6 18.4 0.0 112.0 180 2,237
54.0 to 62.0 years 525 21.4 ± 19.6 15.0 0.0 112.0 35 560
62.0 to 69.0 years 532 24.9 ± 20.9 18.2 0.1 104.3 27 559
69.0 to 77.0 years 510 24.5 ± 18.8 19.1 0.0 100.2 49 559
77.0 to 95.0 years 490 26.0 ± 18.4 21.8 0.4 103.7 69 559
Gender of the participant vs 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
Exam 5
N Mean StdDev Median Min Max Unknown Total
Total 2,057 24.1 ± 19.6 18.4 0.0 112.0 180 2,237
Female 1,103 19.5 ± 16.9 14.8 0.0 111.3 95 1,198
Male 954 29.6 ± 20.9 24.6 0.9 112.0 85 1,039
Race/ethnicity of the participant vs 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
Exam 5
N Mean StdDev Median Min Max Unknown Total
Total 2,057 24.1 ± 19.6 18.4 0.0 112.0 180 2,237
White, Caucasian 743 23.4 ± 19.2 17.4 0.0 104.3 87 830
Chinese American 250 24.5 ± 19.1 20.2 0.1 94.1 15 265
Black, African-American 573 23.1 ± 20.2 17.3 0.1 112.0 43 616
Hispanic 491 26.3 ± 19.5 20.9 0.0 103.7 35 526