oahi4 oai4p
Name
oai0p
Label
Obstructive apnea index (all obstructives with all desaturations)
Description

Obstructive apnea index [(total number of obstructive apneas associated with all desaturations) / (hours of sleep)]. will be missing if total sleep time is 0.

Calculation
oai0p = 60*(oarbp + oarop + oanbp + oanop ) / slpprdp
Units
events per hour
Type
numeric
Visit Number vs Obstructive apnea index (all obstructives with all desaturations)
N Mean StdDev Median Min Max Unknown Total
Baseline 453 2.1 ± 2.7 1.1 0.0 16.3 - 453
Follow-up 407 1.1 ± 3.6 0.2 0.0 45.4 46 453
Treatment Arm vs Obstructive apnea index (all obstructives with all desaturations)
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 453 2.1 ± 2.7 1.1 0.0 16.3 - 453
Early adenotonsillectomy 226 2.0 ± 2.6 1.0 0.0 15.3 - 226
Watchful waiting 227 2.1 ± 2.8 1.1 0.0 16.3 - 227
Treatment Arm vs Obstructive apnea index (all obstructives with all desaturations)
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 407 1.1 ± 3.6 0.2 0.0 45.4 46 453
Early adenotonsillectomy 199 0.4 ± 1.1 0.1 0.0 11.2 27 226
Watchful waiting 208 1.8 ± 4.8 0.4 0.0 45.4 19 227
Age vs Obstructive apnea index (all obstructives with all desaturations)
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 453 2.1 ± 2.7 1.1 0.0 16.3 - 453
5-7 yrs old 329 2.2 ± 2.7 1.3 0.0 16.3 - 329
8-10 yrs old 124 1.6 ± 2.5 0.7 0.0 14.3 - 124
Age vs Obstructive apnea index (all obstructives with all desaturations)
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 397 1.1 ± 3.6 0.2 0.0 45.4 2 399
5-7 yrs old 260 1.3 ± 4.3 0.2 0.0 45.4 2 262
8-10 yrs old 137 0.7 ± 1.6 0.2 0.0 13.4 - 137
Gender vs Obstructive apnea index (all obstructives with all desaturations)
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 453 2.1 ± 2.7 1.1 0.0 16.3 - 453
Female 234 2.0 ± 2.5 1.2 0.0 15.3 - 234
Male 219 2.1 ± 2.8 1.0 0.0 16.3 - 219
Gender vs Obstructive apnea index (all obstructives with all desaturations)
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 407 1.1 ± 3.6 0.2 0.0 45.4 46 453
Female 209 1.3 ± 4.6 0.2 0.0 45.4 25 234
Male 198 0.8 ± 1.9 0.2 0.0 14.5 21 219
Race vs Obstructive apnea index (all obstructives with all desaturations)
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 453 2.1 ± 2.7 1.1 0.0 16.3 - 453
White 156 1.6 ± 2.3 0.7 0.0 15.9 - 156
Black 249 2.3 ± 2.7 1.4 0.0 15.3 - 249
Other 48 2.6 ± 3.4 1.3 0.0 16.3 - 48
Race vs Obstructive apnea index (all obstructives with all desaturations)
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 407 1.1 ± 3.6 0.2 0.0 45.4 46 453
White 147 0.8 ± 2.8 0.1 0.0 29.2 9 156
Black 217 1.4 ± 4.2 0.3 0.0 45.4 32 249
Other 43 0.5 ± 1.2 0.1 0.0 7.3 5 48