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 + carbp + carop + canbp + canop + oarbp + oarop + oanbp + oanop) / slpprdp
Units
events per hour
Type
numeric
Tags
aasm15_recommended ahi_ap0uhp3x3r_f1t2
Sleep Heart Health Study (SHHS) Visit 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
Visit 1 5,804 17.9 ± 16.1 13.2 0.0 161.8 - 5,804
Interim Follow-up Visit - - - - - - - -
Visit 2 2,651 18.4 ± 16.4 13.6 0.0 118.4 1,429 4,080
CVD Outcomes - - - - - - - -
Age at Sleep Heart Health Study Visit One (SHHS1) 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
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 5,804 17.9 ± 16.1 13.2 0.0 161.8 - 5,804
35-44 years 342 12.5 ± 14.6 8.1 0.2 98.6 - 342
45-54 years 1,017 14.5 ± 15.1 9.8 0.0 126.0 - 1,017
55-64 years 1,769 17.9 ± 16.3 12.8 0.2 116.3 - 1,769
65-74 years 1,617 19.7 ± 16.5 15.2 0.2 161.8 - 1,617
75-84 years 955 20.2 ± 15.4 16.6 0.0 94.2 - 955
85 years or older 104 22.5 ± 16.9 17.2 0.0 82.8 - 104
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
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 5,804 17.9 ± 16.1 13.2 0.0 161.8 - 5,804
Male 2,765 22.5 ± 17.2 18.1 0.0 121.3 - 2,765
Female 3,039 13.8 ± 13.8 9.7 0.0 161.8 - 3,039
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
Visit 2
N Mean StdDev Median Min Max Unknown Total
Total 2,651 18.4 ± 16.4 13.6 0.0 118.4 1,429 4,080
Male 1,226 22.9 ± 17.4 18.4 0.1 118.4 635 1,861
Female 1,425 14.6 ± 14.3 10.6 0.0 110.3 794 2,219
Race 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
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 5,804 17.9 ± 16.1 13.2 0.0 161.8 - 5,804
White 4,907 18.2 ± 16.1 13.5 0.0 161.8 - 4,907
Black 515 17.2 ± 17.4 11.4 0.2 116.3 - 515
Other 382 15.0 ± 14.2 10.3 0.2 80.7 - 382
Race 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
Visit 2
N Mean StdDev Median Min Max Unknown Total
Total 2,651 18.4 ± 16.4 13.6 0.0 118.4 1,429 4,080
White 2,311 18.7 ± 16.4 13.7 0.0 118.4 1,276 3,587
Black 181 18.2 ± 17.1 12.2 0.1 88.6 75 256
Other 159 15.5 ± 15.3 12.0 0.0 104.2 78 237