Age

Visit Number vs Hypopnea Index (NREM, Non-Supine) : (Hypopneas with > 50% flow reduction and with no oxygen desaturation threshold used only with arousal) / hour of NREM sleep in non-supine position from type I polysomnography
N Mean StdDev Median Min Max Unknown Total
Baseline 453 1.3 ± 2.5 0.7 0.0 40.0 - 453
Follow-up 407 0.7 ± 1.9 0.2 0.0 20.9 46 453
Treatment Arm vs Hypopnea Index (NREM, Non-Supine) : (Hypopneas with > 50% flow reduction and with no oxygen desaturation threshold used only with arousal) / hour of NREM sleep in non-supine position from type I polysomnography
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 453 1.3 ± 2.5 0.7 0.0 40.0 - 453
Early adenotonsillectomy (EAT) 226 1.3 ± 1.9 0.7 0.0 14.2 - 226
Watchful waiting with supportive care (WWSC) 227 1.4 ± 3.0 0.6 0.0 40.0 - 227
Treatment Arm vs Hypopnea Index (NREM, Non-Supine) : (Hypopneas with > 50% flow reduction and with no oxygen desaturation threshold used only with arousal) / hour of NREM sleep in non-supine position from type I polysomnography
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 407 0.7 ± 1.9 0.2 0.0 20.9 46 453
Early adenotonsillectomy (EAT) 199 0.3 ± 0.8 0.0 0.0 8.0 27 226
Watchful waiting with supportive care (WWSC) 208 1.1 ± 2.5 0.4 0.0 20.9 19 227
Child's age vs Hypopnea Index (NREM, Non-Supine) : (Hypopneas with > 50% flow reduction and with no oxygen desaturation threshold used only with arousal) / hour of NREM sleep in non-supine position from type I polysomnography
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 453 1.3 ± 2.5 0.7 0.0 40.0 - 453
5 - 7 years old 329 1.3 ± 2.7 0.7 0.0 40.0 - 329
8 - 10 years old 124 1.3 ± 1.7 0.6 0.0 12.2 - 124
Child's age vs Hypopnea Index (NREM, Non-Supine) : (Hypopneas with > 50% flow reduction and with no oxygen desaturation threshold used only with arousal) / hour of NREM sleep in non-supine position from type I polysomnography
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 397 0.7 ± 1.9 0.2 0.0 20.9 2 399
5 - 7 years old 260 0.7 ± 1.7 0.2 0.0 13.8 2 262
8 - 10 years old 137 0.8 ± 2.3 0.2 0.0 20.9 - 137
Child's gender vs Hypopnea Index (NREM, Non-Supine) : (Hypopneas with > 50% flow reduction and with no oxygen desaturation threshold used only with arousal) / hour of NREM sleep in non-supine position from type I polysomnography
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 453 1.3 ± 2.5 0.7 0.0 40.0 - 453
Female 234 1.3 ± 3.0 0.7 0.0 40.0 - 234
Male 219 1.4 ± 1.9 0.7 0.0 12.2 - 219
Child's gender vs Hypopnea Index (NREM, Non-Supine) : (Hypopneas with > 50% flow reduction and with no oxygen desaturation threshold used only with arousal) / hour of NREM sleep in non-supine position from type I polysomnography
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 407 0.7 ± 1.9 0.2 0.0 20.9 46 453
Female 209 0.8 ± 2.2 0.0 0.0 20.9 25 234
Male 198 0.7 ± 1.5 0.2 0.0 10.4 21 219
Child's race vs Hypopnea Index (NREM, Non-Supine) : (Hypopneas with > 50% flow reduction and with no oxygen desaturation threshold used only with arousal) / hour of NREM sleep in non-supine position from type I polysomnography
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 453 1.3 ± 2.5 0.7 0.0 40.0 - 453
White 156 1.4 ± 3.6 0.5 0.0 40.0 - 156
Black 249 1.3 ± 1.7 0.8 0.0 12.2 - 249
Other 48 1.0 ± 1.3 0.5 0.0 6.1 - 48
Child's race vs Hypopnea Index (NREM, Non-Supine) : (Hypopneas with > 50% flow reduction and with no oxygen desaturation threshold used only with arousal) / hour of NREM sleep in non-supine position from type I polysomnography
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 407 0.7 ± 1.9 0.2 0.0 20.9 46 453
White 147 0.6 ± 1.6 0.0 0.0 10.4 9 156
Black 217 0.8 ± 2.1 0.3 0.0 20.9 32 249
Other 43 0.8 ± 2.0 0.2 0.0 12.5 5 48