Name

cai4pa

Label

Central apnea index >=4% or arousal

Description

[(Total number of central apneas with >= 4% desaturation or arousal) / (hours of sleep)]

Calculation
cai4pa = 60*(carba4 + caroa4 + canba4 + canoa4 ) / slpprdp
Units
events per hour
Type
numeric
Visit Number vs Central apnea index >=4% or arousal
N Mean StdDev Median Min Max Unknown Total
Baseline 453 0.7 ± 1.0 0.5 0.0 14.3 11 464
Follow-up 407 0.6 ± 0.7 0.3 0.0 4.4 46 453
Treatment Arm vs Central apnea index >=4% or arousal
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 453 0.7 ± 1.0 0.5 0.0 14.3 - 453
Early adenotonsillectomy (EAT) 226 0.7 ± 1.3 0.5 0.0 14.3 - 226
Watchful waiting with supportive care (WWSC) 227 0.7 ± 0.7 0.5 0.0 5.6 - 227
Treatment Arm vs Central apnea index >=4% or arousal
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 407 0.6 ± 0.7 0.3 0.0 4.4 46 453
Early adenotonsillectomy (EAT) 199 0.5 ± 0.6 0.3 0.0 4.4 27 226
Watchful waiting with supportive care (WWSC) 208 0.6 ± 0.7 0.3 0.0 4.2 19 227
Age vs Central apnea index >=4% or arousal
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 453 0.7 ± 1.0 0.5 0.0 14.3 - 453
5 - 7 years old 329 0.7 ± 0.7 0.5 0.0 5.6 - 329
8 - 10 years old 124 0.8 ± 1.6 0.4 0.0 14.3 - 124
Age vs Central apnea index >=4% or arousal
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 397 0.6 ± 0.7 0.3 0.0 4.4 2 399
5 - 7 years old 260 0.6 ± 0.7 0.4 0.0 4.4 2 262
8 - 10 years old 137 0.5 ± 0.6 0.3 0.0 4.2 - 137
Gender vs Central apnea index >=4% or arousal
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 453 0.7 ± 1.0 0.5 0.0 14.3 - 453
Female 234 0.7 ± 0.9 0.5 0.0 10.0 - 234
Male 219 0.7 ± 1.1 0.5 0.0 14.3 - 219
Gender vs Central apnea index >=4% or arousal
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 407 0.6 ± 0.7 0.3 0.0 4.4 46 453
Female 209 0.5 ± 0.6 0.3 0.0 3.8 25 234
Male 198 0.6 ± 0.7 0.4 0.0 4.4 21 219
Race vs Central apnea index >=4% or arousal
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 453 0.7 ± 1.0 0.5 0.0 14.3 - 453
White 156 0.8 ± 1.1 0.6 0.0 10.0 - 156
Black 249 0.7 ± 1.1 0.5 0.0 14.3 - 249
Other 48 0.6 ± 0.6 0.4 0.0 3.1 - 48
Race vs Central apnea index >=4% or arousal
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 407 0.6 ± 0.7 0.3 0.0 4.4 46 453
White 147 0.6 ± 0.7 0.4 0.0 3.8 9 156
Black 217 0.5 ± 0.6 0.3 0.0 4.2 32 249
Other 43 0.6 ± 0.7 0.3 0.0 4.4 5 48