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 + carbp + carop + canbp + canop + oarbp + oarop + oanbp + oanop + urbp4 + urop4 + unrbp4 + unrop4) / slpprdp
Units
events per hour
Type
numeric
Visit 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
Visit 5 732 10.2 ± 18.5 2.3 0.0 116.4 3 735
Age at time of visit vs Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >= 4% oxygen desaturation] per hour of sleep
Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 655 10.1 ± 18.1 2.3 0.0 116.4 3 658
5-14 yrs old 64 1.7 ± 4.7 0.6 0.0 27.6 - 64
15-24 yrs old 112 1.9 ± 4.4 0.7 0.0 40.1 - 112
25-34 yrs old 62 10.3 ± 22.6 1.6 0.0 116.2 - 62
35-44 years 97 12.6 ± 21.2 3.4 0.0 116.4 1 98
45-54 years 146 12.3 ± 20.9 4.5 0.0 106.7 2 148
55-64 years 84 13.2 ± 18.4 6.5 0.0 101.2 - 84
65-74 years 57 15.1 ± 15.4 9.2 0.0 56.5 - 57
75-84 years 31 19.3 ± 20.2 11.5 0.0 72.6 - 31
85 years or older 2 31.2 ± 35.1 31.2 6.4 56.1 - 2
Sex vs Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >= 4% oxygen desaturation] per hour of sleep
Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 732 10.2 ± 18.5 2.3 0.0 116.4 3 735
Female 403 6.8 ± 13.2 1.6 0.0 106.4 3 406
Male 329 14.3 ± 22.7 3.5 0.0 116.4 - 329
Race vs Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >= 4% oxygen desaturation] per hour of sleep
Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 732 10.2 ± 18.5 2.3 0.0 116.4 3 735
White 302 10.2 ± 18.7 2.1 0.0 116.4 2 304
Black 408 10.6 ± 18.6 2.8 0.0 116.2 1 409
Other 22 2.8 ± 7.3 0.6 0.1 34.6 - 22