Name

cai0p

Label

Central apnea index all desaturations

Description

[(Total number of central apneas associated with all desaturations) / (hours of sleep)]. Will be missing if Total Sleep Time (TST) 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 11 464
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 (EAT) 226 1.1 ± 1.6 0.7 0.0 15.6 - 226
Watchful waiting with supportive care (WWSC) 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 (EAT) 199 0.9 ± 0.9 0.6 0.0 5.9 27 226
Watchful waiting with supportive care (WWSC) 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 years old 329 1.0 ± 1.0 0.8 0.0 7.6 - 329
8 - 10 years 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 years old 260 0.9 ± 1.0 0.6 0.0 5.9 2 262
8 - 10 years 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
White 156 1.3 ± 1.5 0.9 0.0 13.9 - 156
Black 249 0.9 ± 1.3 0.7 0.0 15.6 - 249
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
White 147 1.0 ± 1.0 0.7 0.0 5.9 9 156
Black 217 0.7 ± 0.8 0.5 0.0 5.4 32 249
Other 43 0.9 ± 1.1 0.5 0.0 5.9 5 48