Name

omahi3o

Label

Non-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
omahi3o = 60*(oarop + oanop + marop + manrop + hroa3 + hnroa3) / slpprdp
Units
events per hour
Type
numeric
Visit Number vs Non-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 4.0 ± 4.6 2.2 0.0 27.7 11 464
Follow-up 407 1.9 ± 5.0 0.5 0.0 61.0 46 453
Treatment Arm vs Non-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 4.0 ± 4.6 2.2 0.0 27.7 - 453
Early adenotonsillectomy (EAT) 226 4.2 ± 4.8 2.6 0.0 27.7 - 226
Watchful waiting with supportive care (WWSC) 227 3.8 ± 4.5 2.0 0.0 22.6 - 227
Treatment Arm vs Non-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 ± 5.0 0.5 0.0 61.0 46 453
Early adenotonsillectomy (EAT) 199 0.7 ± 2.2 0.3 0.0 29.3 27 226
Watchful waiting with supportive care (WWSC) 208 3.1 ± 6.5 0.8 0.0 61.0 19 227
Age vs Non-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 4.0 ± 4.6 2.2 0.0 27.7 - 453
5 - 7 years old 329 3.9 ± 4.5 2.2 0.0 25.0 - 329
8 - 10 years old 124 4.2 ± 4.9 2.5 0.0 27.7 - 124
Age vs Non-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 2.0 ± 5.1 0.5 0.0 61.0 2 399
5 - 7 years old 260 2.1 ± 5.7 0.5 0.0 61.0 2 262
8 - 10 years old 137 1.8 ± 3.6 0.5 0.0 22.2 - 137
Gender vs Non-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 4.0 ± 4.6 2.2 0.0 27.7 - 453
Female 234 4.1 ± 4.8 2.4 0.0 27.7 - 234
Male 219 3.8 ± 4.4 2.2 0.0 25.0 - 219
Gender vs Non-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 ± 5.0 0.5 0.0 61.0 46 453
Female 209 2.4 ± 6.5 0.5 0.0 61.0 25 234
Male 198 1.5 ± 2.8 0.5 0.0 16.8 21 219
Race vs Non-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 4.0 ± 4.6 2.2 0.0 27.7 - 453
White 156 2.7 ± 3.5 1.6 0.0 21.3 - 156
Black 249 4.7 ± 5.0 3.0 0.0 27.7 - 249
Other 48 4.4 ± 5.4 2.5 0.0 25.0 - 48
Race vs Non-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 ± 5.0 0.5 0.0 61.0 46 453
White 147 1.1 ± 3.3 0.3 0.0 33.4 9 156
Black 217 2.7 ± 6.2 0.7 0.0 61.0 32 249
Other 43 1.1 ± 2.3 0.5 0.0 14.3 5 48