Name

ahi_a0h4a

Label

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

Calculation
ahi_a0h4a = 60 * (hremba4 + hroa4 + hnrba4 + hnroa4 + carbp + carop + canbp + canop + oarbp + oarop + oanbp + oanop + urbpa4 + uropa4 + unrbpa4 + unropa4) / slpprdp
Units
events per hour
Type
numeric
Visit vs Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >= 4% oxygen desaturation or arousal] per hour of sleep
N Mean StdDev Median Min Max Unknown Total
Visit 5 732 10.3 ± 15.2 3.8 0.0 94.3 3 735
Age at time of visit vs Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >= 4% oxygen desaturation or arousal] per hour of sleep
Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 655 10.2 ± 14.9 3.8 0.0 94.3 3 658
5-14 yrs old 64 1.3 ± 3.2 0.5 0.0 20.9 - 64
15-24 yrs old 112 2.7 ± 4.7 1.4 0.0 39.2 - 112
25-34 yrs old 62 9.6 ± 17.6 3.0 0.1 94.3 - 62
35-44 years 97 12.8 ± 18.5 5.1 0.0 91.6 1 98
45-54 years 146 11.8 ± 14.5 6.7 0.2 86.1 2 148
55-64 years 84 13.0 ± 13.4 8.3 0.2 56.1 - 84
65-74 years 57 17.3 ± 16.3 11.6 0.7 58.3 - 57
75-84 years 31 19.2 ± 19.5 12.5 0.7 82.1 - 31
85 years or older 2 14.2 ± 2.5 14.2 12.4 16.0 - 2
Sex vs Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >= 4% oxygen desaturation or arousal] per hour of sleep
Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 732 10.3 ± 15.2 3.8 0.0 94.3 3 735
Female 403 7.6 ± 11.7 3.0 0.0 76.5 3 406
Male 329 13.6 ± 18.2 6.0 0.0 94.3 - 329
Race vs Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >= 4% oxygen desaturation or arousal] per hour of sleep
Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 732 10.3 ± 15.2 3.8 0.0 94.3 3 735
White 302 10.1 ± 14.8 3.6 0.0 94.3 2 304
Black 408 10.8 ± 15.8 4.0 0.0 86.1 1 409
Other 22 3.8 ± 7.5 1.0 0.0 35.6 - 22