Name

oahi4

Label

Obstructive apnea hypopnea (>=4% desaturation) index

Description

{[(total number of obstructive apneas) + (total number of hypopneas associated with >= 4% desaturation)] / (hours of sleep)}

Calculation
oahi4 = 60*(hrembp4 + hrop4 + hnrbp4 + hnrop4 + oarbp + oarop + oanbp + oanop ) / slpprdp
Units
events per hour
Type
numeric
Visit Number vs Obstructive apnea hypopnea (>=4% desaturation) index
N Mean StdDev Median Min Max Unknown Total
Baseline 453 4.0 ± 4.3 2.3 0.0 21.3 11 464
Follow-up 407 2.2 ± 5.6 0.5 0.0 51.0 46 453
Treatment Arm vs Obstructive apnea hypopnea (>=4% desaturation) index
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 453 4.0 ± 4.3 2.3 0.0 21.3 - 453
Early adenotonsillectomy (EAT) 226 4.0 ± 4.3 2.5 0.0 19.5 - 226
Watchful waiting with supportive care (WWSC) 227 3.9 ± 4.4 2.1 0.1 21.3 - 227
Treatment Arm vs Obstructive apnea hypopnea (>=4% desaturation) index
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 407 2.2 ± 5.6 0.5 0.0 51.0 46 453
Early adenotonsillectomy (EAT) 199 0.8 ± 2.1 0.3 0.0 20.9 27 226
Watchful waiting with supportive care (WWSC) 208 3.5 ± 7.4 0.8 0.0 51.0 19 227
Age vs Obstructive apnea hypopnea (>=4% desaturation) index
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 453 4.0 ± 4.3 2.3 0.0 21.3 - 453
5 - 7 years old 329 3.9 ± 4.2 2.2 0.0 21.0 - 329
8 - 10 years old 124 4.1 ± 4.6 2.4 0.0 21.3 - 124
Age vs Obstructive apnea hypopnea (>=4% desaturation) index
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 397 2.2 ± 5.7 0.5 0.0 51.0 2 399
5 - 7 years old 260 2.4 ± 6.5 0.4 0.0 51.0 2 262
8 - 10 years old 137 2.0 ± 3.7 0.5 0.0 20.3 - 137
Gender vs Obstructive apnea hypopnea (>=4% desaturation) index
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 453 4.0 ± 4.3 2.3 0.0 21.3 - 453
Female 234 4.0 ± 4.3 2.4 0.0 21.3 - 234
Male 219 3.9 ± 4.3 2.1 0.1 19.5 - 219
Gender vs Obstructive apnea hypopnea (>=4% desaturation) index
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 407 2.2 ± 5.6 0.5 0.0 51.0 46 453
Female 209 2.5 ± 6.7 0.4 0.0 51.0 25 234
Male 198 1.9 ± 4.2 0.5 0.0 34.6 21 219
Race vs Obstructive apnea hypopnea (>=4% desaturation) index
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 453 4.0 ± 4.3 2.3 0.0 21.3 - 453
White 156 2.8 ± 3.5 1.4 0.0 19.5 - 156
Black 249 4.6 ± 4.5 2.7 0.1 21.3 - 249
Other 48 4.5 ± 5.0 2.2 0.0 17.8 - 48
Race vs Obstructive apnea hypopnea (>=4% desaturation) index
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 407 2.2 ± 5.6 0.5 0.0 51.0 46 453
White 147 1.6 ± 5.6 0.3 0.0 48.4 9 156
Black 217 2.7 ± 6.0 0.6 0.0 51.0 32 249
Other 43 1.3 ± 3.3 0.3 0.0 19.9 5 48