Name

omahi3b

Label

Supine Childhood Adenotonsillectomy Trial (CHAT) Apnea-Hypopnea Index (AHI) (obstructive apneas all desaturations, mixed apneas all desaturations, plus hypopneas with >=3% or arousal)

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
omahi3b = 60*(oarbp + oanbp + marbp + manrbp + hremba3 + hnrba3 ) / slpprdp
Units
events per hour
Type
numeric
Visit Number vs Supine Childhood Adenotonsillectomy Trial (CHAT) Apnea-Hypopnea Index (AHI) (obstructive apneas all desaturations, mixed apneas all desaturations, plus hypopneas with >=3% or arousal)
N Mean StdDev Median Min Max Unknown Total
Baseline 453 2.8 ± 3.3 1.8 0.0 26.1 11 464
Follow-up 407 1.9 ± 4.4 0.6 0.0 47.1 46 453
Treatment Arm vs Supine Childhood Adenotonsillectomy Trial (CHAT) Apnea-Hypopnea Index (AHI) (obstructive apneas all desaturations, mixed apneas all desaturations, plus hypopneas with >=3% or arousal)
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 453 2.8 ± 3.3 1.8 0.0 26.1 - 453
Early adenotonsillectomy (EAT) 226 2.7 ± 3.2 1.7 0.0 16.6 - 226
Watchful waiting with supportive care (WWSC) 227 2.9 ± 3.4 1.9 0.0 26.1 - 227
Treatment Arm vs Supine Childhood Adenotonsillectomy Trial (CHAT) Apnea-Hypopnea Index (AHI) (obstructive apneas all desaturations, mixed apneas all desaturations, plus hypopneas with >=3% or arousal)
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 407 1.9 ± 4.4 0.6 0.0 47.1 46 453
Early adenotonsillectomy (EAT) 199 1.0 ± 2.0 0.4 0.0 17.8 27 226
Watchful waiting with supportive care (WWSC) 208 2.7 ± 5.7 0.9 0.0 47.1 19 227
Age vs Supine Childhood Adenotonsillectomy Trial (CHAT) Apnea-Hypopnea Index (AHI) (obstructive apneas all desaturations, mixed apneas all desaturations, plus hypopneas with >=3% or arousal)
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 453 2.8 ± 3.3 1.8 0.0 26.1 - 453
5 - 7 years old 329 2.7 ± 3.1 1.6 0.0 16.4 - 329
8 - 10 years old 124 3.0 ± 3.8 2.1 0.0 26.1 - 124
Age vs Supine Childhood Adenotonsillectomy Trial (CHAT) Apnea-Hypopnea Index (AHI) (obstructive apneas all desaturations, mixed apneas all desaturations, plus hypopneas with >=3% or arousal)
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 397 1.9 ± 4.4 0.6 0.0 47.1 2 399
5 - 7 years old 260 1.9 ± 5.1 0.5 0.0 47.1 2 262
8 - 10 years old 137 1.9 ± 2.9 0.8 0.0 18.9 - 137
Gender vs Supine Childhood Adenotonsillectomy Trial (CHAT) Apnea-Hypopnea Index (AHI) (obstructive apneas all desaturations, mixed apneas all desaturations, plus hypopneas with >=3% or arousal)
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 453 2.8 ± 3.3 1.8 0.0 26.1 - 453
Female 234 2.8 ± 3.5 1.8 0.0 26.1 - 234
Male 219 2.8 ± 3.1 1.7 0.0 16.4 - 219
Gender vs Supine Childhood Adenotonsillectomy Trial (CHAT) Apnea-Hypopnea Index (AHI) (obstructive apneas all desaturations, mixed apneas all desaturations, plus hypopneas with >=3% or arousal)
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 407 1.9 ± 4.4 0.6 0.0 47.1 46 453
Female 209 1.7 ± 3.9 0.6 0.0 36.3 25 234
Male 198 2.0 ± 4.9 0.6 0.0 47.1 21 219
Race vs Supine Childhood Adenotonsillectomy Trial (CHAT) Apnea-Hypopnea Index (AHI) (obstructive apneas all desaturations, mixed apneas all desaturations, plus hypopneas with >=3% or arousal)
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 453 2.8 ± 3.3 1.8 0.0 26.1 - 453
White 156 2.8 ± 3.2 1.7 0.0 16.4 - 156
Black 249 2.8 ± 3.4 1.9 0.0 26.1 - 249
Other 48 2.7 ± 3.4 1.6 0.0 14.7 - 48
Race vs Supine Childhood Adenotonsillectomy Trial (CHAT) Apnea-Hypopnea Index (AHI) (obstructive apneas all desaturations, mixed apneas all desaturations, plus hypopneas with >=3% or arousal)
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 407 1.9 ± 4.4 0.6 0.0 47.1 46 453
White 147 2.1 ± 5.8 0.6 0.0 47.1 9 156
Black 217 1.7 ± 3.5 0.5 0.0 27.7 32 249
Other 43 1.7 ± 3.0 0.6 0.0 16.7 5 48