Name

omahi3

Label

Childhood Adenotonsillectomy Trial (CHAT) Apnea-Hypopnea Index (AHI) (obstructive apneas all desaturations, mixed apneas all desaturations, plus hypopneas with >=3% or arousal) no centrals

Description

{[(total number of obstructive apneas) + (total number of mixed apneas) + (total number of hypopneas associated with >= 3% desaturation or arousal)] / (hours of sleep)}. will be missing if Total Sleep Time (TST) is 0.

Calculation
omahi3 = 60*(oarbp + oarop + oanbp + oanop + marbp + marop + manrbp + manrop + hremba3 +hroa3 + hnrba3 + hnroa3) / slpprdp
Units
events per hour
Type
numeric
Visit Number vs Childhood Adenotonsillectomy Trial (CHAT) Apnea-Hypopnea Index (AHI) (obstructive apneas all desaturations, mixed apneas all desaturations, plus hypopneas with >=3% or arousal) no centrals
N Mean StdDev Median Min Max Unknown Total
Baseline 453 6.8 ± 5.6 4.7 1.1 29.3 11 464
Follow-up 407 3.8 ± 7.8 1.3 0.0 69.7 46 453
Treatment Arm vs Childhood Adenotonsillectomy Trial (CHAT) Apnea-Hypopnea Index (AHI) (obstructive apneas all desaturations, mixed apneas all desaturations, plus hypopneas with >=3% or arousal) no centrals
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 453 6.8 ± 5.6 4.7 1.1 29.3 - 453
Early adenotonsillectomy (EAT) 226 6.9 ± 5.7 4.8 1.2 27.7 - 226
Watchful waiting with supportive care (WWSC) 227 6.7 ± 5.7 4.5 1.1 29.3 - 227
Treatment Arm vs Childhood Adenotonsillectomy Trial (CHAT) Apnea-Hypopnea Index (AHI) (obstructive apneas all desaturations, mixed apneas all desaturations, plus hypopneas with >=3% or arousal) no centrals
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 407 3.8 ± 7.8 1.3 0.0 69.7 46 453
Early adenotonsillectomy (EAT) 199 1.6 ± 3.0 0.8 0.0 29.3 27 226
Watchful waiting with supportive care (WWSC) 208 5.9 ± 10.1 2.2 0.0 69.7 19 227
Age vs Childhood Adenotonsillectomy Trial (CHAT) Apnea-Hypopnea Index (AHI) (obstructive apneas all desaturations, mixed apneas all desaturations, plus hypopneas with >=3% or arousal) no centrals
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 453 6.8 ± 5.6 4.7 1.1 29.3 - 453
5 - 7 years old 329 6.6 ± 5.5 4.6 1.1 29.3 - 329
8 - 10 years old 124 7.2 ± 6.0 5.2 1.4 27.7 - 124
Age vs Childhood Adenotonsillectomy Trial (CHAT) Apnea-Hypopnea Index (AHI) (obstructive apneas all desaturations, mixed apneas all desaturations, plus hypopneas with >=3% or arousal) no centrals
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 397 3.8 ± 7.9 1.3 0.0 69.7 2 399
5 - 7 years old 260 3.9 ± 8.9 1.1 0.0 69.7 2 262
8 - 10 years old 137 3.6 ± 5.6 1.6 0.0 35.5 - 137
Gender vs Childhood Adenotonsillectomy Trial (CHAT) Apnea-Hypopnea Index (AHI) (obstructive apneas all desaturations, mixed apneas all desaturations, plus hypopneas with >=3% or arousal) no centrals
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 453 6.8 ± 5.6 4.7 1.1 29.3 - 453
Female 234 7.0 ± 5.7 4.9 1.2 29.3 - 234
Male 219 6.5 ± 5.6 4.5 1.1 26.0 - 219
Gender vs Childhood Adenotonsillectomy Trial (CHAT) Apnea-Hypopnea Index (AHI) (obstructive apneas all desaturations, mixed apneas all desaturations, plus hypopneas with >=3% or arousal) no centrals
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 407 3.8 ± 7.8 1.3 0.0 69.7 46 453
Female 209 4.1 ± 8.9 1.3 0.0 69.7 25 234
Male 198 3.5 ± 6.4 1.2 0.0 60.7 21 219
Race vs Childhood Adenotonsillectomy Trial (CHAT) Apnea-Hypopnea Index (AHI) (obstructive apneas all desaturations, mixed apneas all desaturations, plus hypopneas with >=3% or arousal) no centrals
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 453 6.8 ± 5.6 4.7 1.1 29.3 - 453
White 156 5.5 ± 4.7 3.7 1.1 25.4 - 156
Black 249 7.5 ± 5.9 5.5 1.2 29.3 - 249
Other 48 7.1 ± 6.4 4.5 1.4 25.0 - 48
Race vs Childhood Adenotonsillectomy Trial (CHAT) Apnea-Hypopnea Index (AHI) (obstructive apneas all desaturations, mixed apneas all desaturations, plus hypopneas with >=3% or arousal) no centrals
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 407 3.8 ± 7.8 1.3 0.0 69.7 46 453
White 147 3.2 ± 8.6 1.0 0.0 69.7 9 156
Black 217 4.4 ± 7.7 1.6 0.0 62.0 32 249
Other 43 2.7 ± 5.0 0.9 0.1 31.0 5 48