cai oai
Name
cai0p
Label
Central apnea index all desaturations
Description

Central apnea index at all desaturations [(Total number of central apneas associated with all desaturations) / (hours of sleep)]. Will be missing if total sleep time is 0.

Calculation
cai0p = 60*(carbp + carop + canbp + canop ) / slpprdp
Units
events per hour
Type
numeric
Visit Number vs Central apnea index all desaturations
N Mean StdDev Median Min Max Unknown Total
Baseline 453 1.0 ± 1.3 0.7 0.0 15.6 - 453
Follow-up 407 0.8 ± 0.9 0.6 0.0 5.9 46 453
Treatment Arm vs Central apnea index all desaturations
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 453 1.0 ± 1.3 0.7 0.0 15.6 - 453
Early adenotonsillectomy 226 1.1 ± 1.6 0.7 0.0 15.6 - 226
Watchful waiting 227 1.0 ± 1.0 0.8 0.0 7.6 - 227
Treatment Arm vs Central apnea index all desaturations
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 407 0.8 ± 0.9 0.6 0.0 5.9 46 453
Early adenotonsillectomy 199 0.9 ± 0.9 0.6 0.0 5.9 27 226
Watchful waiting 208 0.8 ± 0.9 0.6 0.0 5.6 19 227
Age vs Central apnea index all desaturations
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 453 1.0 ± 1.3 0.7 0.0 15.6 - 453
5-7 yrs old 329 1.0 ± 1.0 0.8 0.0 7.6 - 329
8-10 yrs old 124 1.1 ± 2.0 0.7 0.0 15.6 - 124
Age vs Central apnea index all desaturations
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 397 0.8 ± 0.9 0.6 0.0 5.9 2 399
5-7 yrs old 260 0.9 ± 1.0 0.6 0.0 5.9 2 262
8-10 yrs old 137 0.7 ± 0.8 0.5 0.0 5.4 - 137
Gender vs Central apnea index all desaturations
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 453 1.0 ± 1.3 0.7 0.0 15.6 - 453
Female 234 1.0 ± 1.3 0.7 0.0 13.9 - 234
Male 219 1.1 ± 1.3 0.8 0.0 15.6 - 219
Gender vs Central apnea index all desaturations
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 407 0.8 ± 0.9 0.6 0.0 5.9 46 453
Female 209 0.8 ± 0.8 0.5 0.0 5.9 25 234
Male 198 0.9 ± 1.0 0.6 0.0 5.9 21 219
Race vs Central apnea index all desaturations
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 453 1.0 ± 1.3 0.7 0.0 15.6 - 453
Black 249 0.9 ± 1.3 0.7 0.0 15.6 - 249
White 156 1.3 ± 1.5 0.9 0.0 13.9 - 156
Other 48 0.9 ± 0.8 0.6 0.0 3.4 - 48
Race vs Central apnea index all desaturations
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 407 0.8 ± 0.9 0.6 0.0 5.9 46 453
Black 217 0.7 ± 0.8 0.5 0.0 5.4 32 249
White 147 1.0 ± 1.0 0.7 0.0 5.9 9 156
Other 43 0.9 ± 1.1 0.5 0.0 5.9 5 48