omahi3o omai0p
Name
omahi3r
Label
Rapid eye movement sleep (REM) 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
omahi3r = 60*(oarbp + oarop + marbp + marop + hremba3 +hroa3 ) / slpprdp
Units
events per hour
Type
numeric
Visit Number vs Rapid eye movement sleep (REM) 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 2.9 ± 3.4 1.6 0.0 20.4 11 464
Follow-up 407 1.5 ± 2.9 0.4 0.0 22.0 46 453
Treatment Arm vs Rapid eye movement sleep (REM) 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 2.9 ± 3.4 1.6 0.0 20.4 - 453
Early adenotonsillectomy (eAT) 226 3.0 ± 3.4 1.7 0.0 16.3 - 226
Watchful waiting (WWSC) 227 2.7 ± 3.4 1.5 0.0 20.4 - 227
Treatment Arm vs Rapid eye movement sleep (REM) 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 1.5 ± 2.9 0.4 0.0 22.0 46 453
Early adenotonsillectomy (eAT) 199 0.8 ± 1.8 0.2 0.0 15.6 27 226
Watchful waiting (WWSC) 208 2.1 ± 3.5 0.6 0.0 22.0 19 227
Age vs Rapid eye movement sleep (REM) 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 2.9 ± 3.4 1.6 0.0 20.4 - 453
5-7 yrs old 329 2.9 ± 3.4 1.6 0.0 16.3 - 329
8-10 yrs old 124 2.7 ± 3.4 1.6 0.0 20.4 - 124
Age vs Rapid eye movement sleep (REM) 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 1.5 ± 2.9 0.4 0.0 22.0 2 399
5-7 yrs old 260 1.5 ± 3.1 0.3 0.0 22.0 2 262
8-10 yrs old 137 1.4 ± 2.5 0.4 0.0 16.1 - 137
Gender vs Rapid eye movement sleep (REM) 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 2.9 ± 3.4 1.6 0.0 20.4 - 453
Female 234 2.9 ± 3.4 1.7 0.0 20.4 - 234
Male 219 2.8 ± 3.4 1.5 0.0 16.3 - 219
Gender vs Rapid eye movement sleep (REM) 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 1.5 ± 2.9 0.4 0.0 22.0 46 453
Female 209 1.5 ± 3.0 0.4 0.0 22.0 25 234
Male 198 1.5 ± 2.8 0.4 0.0 16.0 21 219
Race vs Rapid eye movement sleep (REM) 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 2.9 ± 3.4 1.6 0.0 20.4 - 453
White 156 2.0 ± 2.8 0.8 0.0 15.8 - 156
Black 249 3.4 ± 3.4 2.2 0.0 20.4 - 249
Other 48 3.1 ± 4.2 1.5 0.0 16.3 - 48
Race vs Rapid eye movement sleep (REM) 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 1.5 ± 2.9 0.4 0.0 22.0 46 453
White 147 1.0 ± 2.7 0.3 0.0 22.0 9 156
Black 217 2.0 ± 3.2 0.6 0.0 16.1 32 249
Other 43 0.6 ± 0.9 0.3 0.0 3.6 5 48