Name

cai4p

Label

Central apnea index >=4% desaturations

Description

[(Total number of central apneas associated with >= 4% desaturations) / (hours of sleep)]

Calculation
cai4p = 60*(carbp4 + carop4 + canbp4 + canop4 ) / slpprdp
Units
events per hour
Type
numeric
Visit Number vs Central apnea index >=4% desaturations
N Mean StdDev Median Min Max Unknown Total
Baseline 453 0.4 ± 0.8 0.3 0.0 10.7 11 464
Follow-up 407 0.3 ± 0.5 0.2 0.0 3.7 46 453
Treatment Arm vs Central apnea index >=4% desaturations
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 453 0.4 ± 0.8 0.3 0.0 10.7 - 453
Early adenotonsillectomy (EAT) 226 0.4 ± 1.0 0.2 0.0 10.7 - 226
Watchful waiting with supportive care (WWSC) 227 0.4 ± 0.6 0.3 0.0 5.2 - 227
Treatment Arm vs Central apnea index >=4% desaturations
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 407 0.3 ± 0.5 0.2 0.0 3.7 46 453
Early adenotonsillectomy (EAT) 199 0.4 ± 0.5 0.2 0.0 3.6 27 226
Watchful waiting with supportive care (WWSC) 208 0.3 ± 0.5 0.1 0.0 3.7 19 227
Age vs Central apnea index >=4% desaturations
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 453 0.4 ± 0.8 0.3 0.0 10.7 - 453
5 - 7 years old 329 0.4 ± 0.6 0.3 0.0 5.2 - 329
8 - 10 years old 124 0.5 ± 1.2 0.2 0.0 10.7 - 124
Age vs Central apnea index >=4% desaturations
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 397 0.4 ± 0.5 0.2 0.0 3.7 2 399
5 - 7 years old 260 0.4 ± 0.5 0.2 0.0 3.6 2 262
8 - 10 years old 137 0.3 ± 0.5 0.2 0.0 3.7 - 137
Gender vs Central apnea index >=4% desaturations
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 453 0.4 ± 0.8 0.3 0.0 10.7 - 453
Female 234 0.4 ± 0.8 0.2 0.0 7.6 - 234
Male 219 0.5 ± 0.9 0.3 0.0 10.7 - 219
Gender vs Central apnea index >=4% desaturations
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 407 0.3 ± 0.5 0.2 0.0 3.7 46 453
Female 209 0.3 ± 0.4 0.1 0.0 2.7 25 234
Male 198 0.4 ± 0.6 0.2 0.0 3.7 21 219
Race vs Central apnea index >=4% desaturations
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 453 0.4 ± 0.8 0.3 0.0 10.7 - 453
White 156 0.5 ± 0.9 0.3 0.0 7.6 - 156
Black 249 0.4 ± 0.8 0.2 0.0 10.7 - 249
Other 48 0.4 ± 0.5 0.3 0.0 2.4 - 48
Race vs Central apnea index >=4% desaturations
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 407 0.3 ± 0.5 0.2 0.0 3.7 46 453
White 147 0.4 ± 0.5 0.2 0.0 2.7 9 156
Black 217 0.3 ± 0.5 0.2 0.0 3.7 32 249
Other 43 0.3 ± 0.6 0.1 0.0 3.6 5 48