ahi_c0h4 ahilt2
Name
ahi_c0h4a
Label
Central AHI 4% - central apneas and hypopneas with >=4% oxygen desaturation or arousal
Calculation
ahi_c0h4a = 60 * (hremba4 + hroa4 + hnrba4 + hnroa4 + carba + caroa + canba + canoa) / slpprdp
Units
events per hour
Type
numeric
Tags
apnea-hypopnea index icsd
Visit Number vs Central AHI 4% - central apneas and hypopneas with >=4% oxygen desaturation or arousal
N Mean StdDev Median Min Max Unknown Total
Baseline 453 4.2 ± 3.4 3.3 0.0 24.0 11 464
Follow-up 407 2.7 ± 3.8 1.4 0.0 39.0 46 453
Treatment Arm vs Central AHI 4% - central apneas and hypopneas with >=4% oxygen desaturation or arousal
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 453 4.2 ± 3.4 3.3 0.0 24.0 - 453
Early adenotonsillectomy 226 4.4 ± 3.5 3.3 0.3 24.0 - 226
Watchful waiting 227 4.1 ± 3.3 3.3 0.0 21.0 - 227
Treatment Arm vs Central AHI 4% - central apneas and hypopneas with >=4% oxygen desaturation or arousal
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 407 2.7 ± 3.8 1.4 0.0 39.0 46 453
Early adenotonsillectomy 199 1.7 ± 2.0 1.1 0.0 17.8 27 226
Watchful waiting 208 3.6 ± 4.8 2.0 0.0 39.0 19 227
Age vs Central AHI 4% - central apneas and hypopneas with >=4% oxygen desaturation or arousal
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 453 4.2 ± 3.4 3.3 0.0 24.0 - 453
5-7 yrs old 329 4.0 ± 3.1 3.0 0.0 18.9 - 329
8-10 yrs old 124 4.9 ± 4.1 3.7 0.3 24.0 - 124
Age vs Central AHI 4% - central apneas and hypopneas with >=4% oxygen desaturation or arousal
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 397 2.7 ± 3.9 1.4 0.0 39.0 2 399
5-7 yrs old 260 2.7 ± 3.9 1.4 0.0 39.0 2 262
8-10 yrs old 137 2.7 ± 3.9 1.4 0.0 25.6 - 137
Gender vs Central AHI 4% - central apneas and hypopneas with >=4% oxygen desaturation or arousal
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 453 4.2 ± 3.4 3.3 0.0 24.0 - 453
Female 234 4.3 ± 3.5 3.3 0.3 21.0 - 234
Male 219 4.1 ± 3.4 3.3 0.0 24.0 - 219
Gender vs Central AHI 4% - central apneas and hypopneas with >=4% oxygen desaturation or arousal
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 407 2.7 ± 3.8 1.4 0.0 39.0 46 453
Female 209 2.6 ± 3.9 1.3 0.0 25.6 25 234
Male 198 2.7 ± 3.8 1.5 0.0 39.0 21 219
Race vs Central AHI 4% - central apneas and hypopneas with >=4% oxygen desaturation or arousal
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 453 4.2 ± 3.4 3.3 0.0 24.0 - 453
White 156 3.9 ± 2.9 3.1 0.0 15.8 - 156
Black 249 4.5 ± 3.7 3.5 0.3 24.0 - 249
Other 48 4.0 ± 3.3 2.9 0.5 15.6 - 48
Race vs Central AHI 4% - central apneas and hypopneas with >=4% oxygen desaturation or arousal
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 407 2.7 ± 3.8 1.4 0.0 39.0 46 453
White 147 2.5 ± 4.3 1.4 0.0 39.0 9 156
Black 217 2.8 ± 3.5 1.5 0.0 25.6 32 249
Other 43 2.5 ± 3.7 1.2 0.1 23.5 5 48