Name

omahi3nr

Label

Non-rapid eye movement sleep (NREM) 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
omahi3nr = 60*(oanbp + oanop + manrbp + manrop + hnrba3 + hnroa3) / slpprdp
Units
events per hour
Type
numeric
Visit Number vs Non-rapid eye movement sleep (NREM) 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 3.9 ± 3.7 2.6 0.0 25.9 11 464
Follow-up 407 2.3 ± 5.8 0.8 0.0 62.0 46 453
Treatment Arm vs Non-rapid eye movement sleep (NREM) 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 3.9 ± 3.7 2.6 0.0 25.9 - 453
Early adenotonsillectomy (EAT) 226 3.9 ± 3.7 2.5 0.1 25.9 - 226
Watchful waiting with supportive care (WWSC) 227 3.9 ± 3.6 2.7 0.0 18.4 - 227
Treatment Arm vs Non-rapid eye movement sleep (NREM) 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 2.3 ± 5.8 0.8 0.0 62.0 46 453
Early adenotonsillectomy (EAT) 199 0.9 ± 1.7 0.4 0.0 19.2 27 226
Watchful waiting with supportive care (WWSC) 208 3.7 ± 7.8 1.4 0.0 62.0 19 227
Age vs Non-rapid eye movement sleep (NREM) 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 3.9 ± 3.7 2.6 0.0 25.9 - 453
5 - 7 years old 329 3.7 ± 3.4 2.5 0.1 25.3 - 329
8 - 10 years old 124 4.4 ± 4.3 3.2 0.0 25.9 - 124
Age vs Non-rapid eye movement sleep (NREM) 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 2.3 ± 5.9 0.8 0.0 62.0 2 399
5 - 7 years old 260 2.4 ± 6.6 0.6 0.0 62.0 2 262
8 - 10 years old 137 2.2 ± 4.3 1.0 0.0 33.7 - 137
Gender vs Non-rapid eye movement sleep (NREM) 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 3.9 ± 3.7 2.6 0.0 25.9 - 453
Female 234 4.1 ± 3.9 2.8 0.1 25.9 - 234
Male 219 3.7 ± 3.4 2.5 0.0 18.4 - 219
Gender vs Non-rapid eye movement sleep (NREM) 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 2.3 ± 5.8 0.8 0.0 62.0 46 453
Female 209 2.6 ± 7.0 0.7 0.0 62.0 25 234
Male 198 2.0 ± 4.3 0.8 0.0 47.0 21 219
Race vs Non-rapid eye movement sleep (NREM) 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 3.9 ± 3.7 2.6 0.0 25.9 - 453
White 156 3.5 ± 3.3 2.6 0.0 25.3 - 156
Black 249 4.1 ± 3.9 2.6 0.1 25.9 - 249
Other 48 4.0 ± 3.5 2.5 0.7 16.2 - 48
Race vs Non-rapid eye movement sleep (NREM) 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 2.3 ± 5.8 0.8 0.0 62.0 46 453
White 147 2.2 ± 6.1 0.7 0.0 47.7 9 156
Black 217 2.4 ± 5.9 0.8 0.0 62.0 32 249
Other 43 2.2 ± 4.5 0.7 0.0 28.4 5 48