Name

ahi_a0h4

Label

Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >= 4% oxygen desaturation] per hour of sleep

Calculation
ahi_a0h4 = 60 * (hrembp4 + hrop4 + hnrbp4 + hnrop4 + urbp4 + urop4 + unrbp4 + unrop4 + carbp + carop + canbp + canop + oarbp + oarop + oanbp + oanop ) / slpprdp
Units
events per hour
Type
numeric
MESA Exam Number vs Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >= 4% oxygen desaturation] per hour of sleep
N Mean StdDev Median Min Max Unknown Total
Exam 5 2,057 14.8 ± 16.7 9.1 0.0 102.9 180 2,237
Participant Age at MESA Sleep Visit vs Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >= 4% oxygen desaturation] per hour of sleep
Exam 5
N Mean StdDev Median Min Max Unknown Total
Total 2,057 14.8 ± 16.7 9.1 0.0 102.9 180 2,237
54.0 to 62.0 years 520 13.1 ± 16.6 6.5 0.0 102.9 40 560
62.0 to 69.0 years 536 15.6 ± 17.7 9.4 0.0 95.5 23 559
69.0 to 77.0 years 511 14.9 ± 15.8 9.6 0.0 75.7 48 559
77.0 to 95.0 years 490 15.8 ± 16.5 10.3 0.0 101.3 69 559
Gender vs Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >= 4% oxygen desaturation] per hour of sleep
Exam 5
N Mean StdDev Median Min Max Unknown Total
Total 2,057 14.8 ± 16.7 9.1 0.0 102.9 180 2,237
Female 1,103 11.1 ± 13.7 6.3 0.0 95.5 95 1,198
Male 954 19.1 ± 18.8 13.1 0.0 102.9 85 1,039
Race/ethnicity vs Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >= 4% oxygen desaturation] per hour of sleep
Exam 5
N Mean StdDev Median Min Max Unknown Total
Total 2,057 14.8 ± 16.7 9.1 0.0 102.9 180 2,237
White, Caucasian 743 13.4 ± 15.5 7.5 0.0 95.5 87 830
Chinese American 250 15.7 ± 16.4 10.2 0.0 74.6 15 265
Black, African-American 573 14.8 ± 17.7 8.5 0.0 102.9 43 616
Hispanic 491 16.6 ± 17.2 11.1 0.0 101.3 35 526