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) / 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
Peds - - - - - - - -
Teenz - - - - - - - -
TREC 515 0.9 ± 4.2 0.4 0.0 90.6 2 517
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
TREC
N Mean StdDev Median Min Max Unknown Total
Total 515 0.9 ± 4.2 0.4 0.0 90.6 2 517
16.14 to 17.41 years 130 0.6 ± 1.2 0.4 0.0 10.0 - 130
17.41 to 17.69 years 128 0.6 ± 1.1 0.3 0.0 10.9 1 129
17.69 to 17.91 years 129 1.6 ± 8.0 0.4 0.0 90.6 - 129
17.91 to 19.56 years 128 0.8 ± 1.6 0.4 0.0 11.7 1 129
Male gender vs Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >= 4% oxygen desaturation] per hour of sleep
TREC
N Mean StdDev Median Min Max Unknown Total
Total 515 0.9 ± 4.2 0.4 0.0 90.6 2 517
No 255 0.5 ± 0.9 0.3 0.0 11.4 1 256
Yes 260 1.3 ± 5.8 0.5 0.0 90.6 1 261
Race vs Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >= 4% oxygen desaturation] per hour of sleep
TREC
N Mean StdDev Median Min Max Unknown Total
Total 515 0.9 ± 4.2 0.4 0.0 90.6 2 517
White 307 1.1 ± 5.3 0.4 0.0 90.6 2 309
Black 185 0.7 ± 1.1 0.3 0.0 11.1 - 185
Other 23 0.8 ± 1.6 0.3 0.0 7.6 - 23