Name
ahi_a0h4a
Label
Apnea-Hypopnea Index : (Apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 50% flow reduction and >= 4% oxygen desaturation or with arousal) / hour of sleep from type I polysomnography
Description

Calculated - Summary metric of sleep disordered breathing events.

Calculation
ahi_a0h4a = 60 * (hremba4 + hroa4 + hnrba4 + hnroa4 + carbp + carop + canbp + canop + oarbp + oarop + oanbp + oanop + marbp + marop + manrbp + manrop) / slpprdp
Units
events per hour
Type
numeric
Visit Number vs Apnea-Hypopnea Index : (Apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 50% flow reduction and >= 4% oxygen desaturation or with arousal) / hour of sleep from type I polysomnography
N Mean StdDev Median Min Max Unknown Total
Baseline 453 6.4 ± 5.0 4.7 1.0 32.0 - 453
Follow-up 407 3.8 ± 6.9 1.8 0.0 73.3 46 453
Treatment Arm vs Apnea-Hypopnea Index : (Apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 50% flow reduction and >= 4% oxygen desaturation or with arousal) / hour of sleep from type I polysomnography
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 453 6.4 ± 5.0 4.7 1.0 32.0 - 453
Early adenotonsillectomy (EAT) 226 6.5 ± 5.1 5.0 1.3 32.0 - 226
Watchful waiting with supportive care (WWSC) 227 6.3 ± 5.0 4.6 1.0 25.9 - 227
Treatment Arm vs Apnea-Hypopnea Index : (Apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 50% flow reduction and >= 4% oxygen desaturation or with arousal) / hour of sleep from type I polysomnography
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 407 3.8 ± 6.9 1.8 0.0 73.3 46 453
Early adenotonsillectomy (EAT) 199 2.1 ± 2.9 1.3 0.0 29.9 27 226
Watchful waiting with supportive care (WWSC) 208 5.5 ± 9.0 2.6 0.0 73.3 19 227
Child's age vs Apnea-Hypopnea Index : (Apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 50% flow reduction and >= 4% oxygen desaturation or with arousal) / hour of sleep from type I polysomnography
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 453 6.4 ± 5.0 4.7 1.0 32.0 - 453
5 - 7 years old 329 6.3 ± 4.8 4.6 1.0 25.7 - 329
8 - 10 years old 124 6.6 ± 5.7 4.9 1.3 32.0 - 124
Child's age vs Apnea-Hypopnea Index : (Apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 50% flow reduction and >= 4% oxygen desaturation or with arousal) / hour of sleep from type I polysomnography
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 397 3.9 ± 7.0 1.8 0.0 73.3 2 399
5 - 7 years old 260 4.1 ± 8.0 1.8 0.0 73.3 2 262
8 - 10 years old 137 3.4 ± 4.6 1.7 0.0 27.2 - 137
Child's gender vs Apnea-Hypopnea Index : (Apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 50% flow reduction and >= 4% oxygen desaturation or with arousal) / hour of sleep from type I polysomnography
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 453 6.4 ± 5.0 4.7 1.0 32.0 - 453
Female 234 6.5 ± 5.0 4.7 1.3 25.9 - 234
Male 219 6.3 ± 5.0 4.7 1.0 32.0 - 219
Child's gender vs Apnea-Hypopnea Index : (Apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 50% flow reduction and >= 4% oxygen desaturation or with arousal) / hour of sleep from type I polysomnography
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 407 3.8 ± 6.9 1.8 0.0 73.3 46 453
Female 209 4.1 ± 8.3 1.6 0.0 73.3 25 234
Male 198 3.6 ± 5.1 1.9 0.0 44.5 21 219
Child's race vs Apnea-Hypopnea Index : (Apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 50% flow reduction and >= 4% oxygen desaturation or with arousal) / hour of sleep from type I polysomnography
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 453 6.4 ± 5.0 4.7 1.0 32.0 - 453
White 156 5.5 ± 4.3 4.0 1.0 23.0 - 156
Black 249 6.9 ± 5.3 5.2 1.3 32.0 - 249
Other 48 6.7 ± 5.5 4.9 1.5 22.6 - 48
Child's race vs Apnea-Hypopnea Index : (Apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 50% flow reduction and >= 4% oxygen desaturation or with arousal) / hour of sleep from type I polysomnography
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 407 3.8 ± 6.9 1.8 0.0 73.3 46 453
White 147 3.4 ± 7.7 1.7 0.0 73.3 9 156
Black 217 4.3 ± 6.8 1.9 0.0 60.5 32 249
Other 43 3.0 ± 4.0 1.5 0.3 23.5 5 48