Name

ahi_c0h4a

Label

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

Calculation
ahi_c0h4a = 60 * (hremba4 + hroa4 + hnrba4 + hnroa4 + carbp + carop + canbp + canop + urbpa4 + uropa4 + unrbpa4 + unropa4) / slpprdp
Units
events per hour
Type
numeric
Visit vs Central Apnea-Hypopnea Index (AHI) >= 4% - number of [central apneas] and [hypopneas with >= 4% oxygen desaturation or arousal] per hour of sleep
N Mean StdDev Median Min Max Unknown Total
Visit 5 732 8.6 ± 12.7 3.7 0.0 93.2 3 735
Age at time of visit vs Central Apnea-Hypopnea Index (AHI) >= 4% - number of [central 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 8.6 ± 12.4 3.7 0.0 93.2 3 658
5-14 yrs old 64 1.2 ± 3.0 0.5 0.0 20.7 - 64
15-24 yrs old 112 2.6 ± 4.3 1.3 0.0 33.0 - 112
25-34 yrs old 62 7.6 ± 14.4 2.9 0.1 93.2 - 62
35-44 years 97 11.2 ± 15.9 5.0 0.0 72.1 1 98
45-54 years 146 10.3 ± 12.8 6.1 0.2 86.1 2 148
55-64 years 84 10.5 ± 10.0 8.0 0.2 52.4 - 84
65-74 years 57 14.8 ± 14.2 8.8 0.7 53.9 - 57
75-84 years 31 14.0 ± 14.6 10.2 0.7 72.6 - 31
85 years or older 2 11.5 ± 0.4 11.5 11.2 11.8 - 2
Sex vs Central Apnea-Hypopnea Index (AHI) >= 4% - number of [central 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 8.6 ± 12.7 3.7 0.0 93.2 3 735
Female 403 6.9 ± 10.3 2.9 0.0 73.0 3 406
Male 329 10.8 ± 14.8 5.7 0.0 93.2 - 329
Race vs Central Apnea-Hypopnea Index (AHI) >= 4% - number of [central 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 8.6 ± 12.7 3.7 0.0 93.2 3 735
White 302 8.6 ± 12.6 3.6 0.0 93.2 2 304
Black 408 8.9 ± 12.9 3.8 0.0 86.1 1 409
Other 22 3.6 ± 7.1 1.0 0.0 33.5 - 22