Name

ahi_c0h4

Label

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

Calculation
ahi_c0h4 = 60 * (hrembp4 + hrop4 + hnrbp4 + hnrop4 + carbp + carop + canbp + canop) / 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] per hour of sleep
N Mean StdDev Median Min Max Unknown Total
Peds - - - - - - - -
Teenz - - - - - - - -
TREC 515 0.7 ± 3.3 0.3 0.0 71.9 2 517
Age at time of visit vs Central Apnea-Hypopnea Index (AHI) >= 4% - number of [central apneas] and [hypopneas with >= 4% oxygen desaturation] per hour of sleep
TREC
N Mean StdDev Median Min Max Unknown Total
Total 515 0.7 ± 3.3 0.3 0.0 71.9 2 517
16.14 to 17.41 years 130 0.6 ± 1.1 0.3 0.0 9.6 - 130
17.41 to 17.69 years 128 0.5 ± 0.6 0.3 0.0 4.2 1 129
17.69 to 17.91 years 129 1.3 ± 6.4 0.3 0.0 71.9 - 129
17.91 to 19.56 years 128 0.7 ± 1.1 0.4 0.0 10.5 1 129
Male gender vs Central Apnea-Hypopnea Index (AHI) >= 4% - number of [central apneas] and [hypopneas with >= 4% oxygen desaturation] per hour of sleep
TREC
N Mean StdDev Median Min Max Unknown Total
Total 515 0.7 ± 3.3 0.3 0.0 71.9 2 517
No 255 0.4 ± 0.8 0.2 0.0 10.5 1 256
Yes 260 1.1 ± 4.6 0.5 0.0 71.9 1 261
Race vs Central Apnea-Hypopnea Index (AHI) >= 4% - number of [central apneas] and [hypopneas with >= 4% oxygen desaturation] per hour of sleep
TREC
N Mean StdDev Median Min Max Unknown Total
Total 515 0.7 ± 3.3 0.3 0.0 71.9 2 517
White 307 0.9 ± 4.2 0.3 0.0 71.9 2 309
Black 185 0.6 ± 1.0 0.3 0.0 8.3 - 185
Other 23 0.5 ± 0.7 0.3 0.0 2.7 - 23