Histogram

Visit Number vs Childhood Adenotonsillectomy Trial (CHAT) Apnea-Hypopnea Index (AHI) - Obstructive and Mixed Apnea-Hypopnea Index (Supine): (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ mixed apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 50% flow reduction and >= 3% oxygen desaturation or arousal) / hour of sleep in supine position from type I polysomnography
N Mean StdDev Median Min Max Unknown Total
Baseline 395 10.1 ± 12.3 6.1 0.0 114.0 58 453
Follow-up 389 5.4 ± 12.6 1.6 0.0 160.0 64 453
Treatment Arm vs Childhood Adenotonsillectomy Trial (CHAT) Apnea-Hypopnea Index (AHI) - Obstructive and Mixed Apnea-Hypopnea Index (Supine): (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ mixed apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 50% flow reduction and >= 3% oxygen desaturation or arousal) / hour of sleep in supine position from type I polysomnography
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 395 10.1 ± 12.3 6.1 0.0 114.0 58 453
Early adenotonsillectomy (EAT) 195 9.9 ± 11.3 6.1 0.0 73.3 31 226
Watchful waiting with supportive care (WWSC) 200 10.2 ± 13.2 6.2 0.0 114.0 27 227
Treatment Arm vs Childhood Adenotonsillectomy Trial (CHAT) Apnea-Hypopnea Index (AHI) - Obstructive and Mixed Apnea-Hypopnea Index (Supine): (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ mixed apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 50% flow reduction and >= 3% oxygen desaturation or arousal) / hour of sleep in supine position from type I polysomnography
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 389 5.4 ± 12.6 1.6 0.0 160.0 64 453
Early adenotonsillectomy (EAT) 192 2.1 ± 3.3 0.9 0.0 19.1 34 226
Watchful waiting with supportive care (WWSC) 197 8.7 ± 16.8 3.2 0.0 160.0 30 227
Child's age vs Childhood Adenotonsillectomy Trial (CHAT) Apnea-Hypopnea Index (AHI) - Obstructive and Mixed Apnea-Hypopnea Index (Supine): (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ mixed apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 50% flow reduction and >= 3% oxygen desaturation or arousal) / hour of sleep in supine position from type I polysomnography
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 395 10.1 ± 12.3 6.1 0.0 114.0 58 453
5 - 7 years old 287 8.9 ± 9.6 5.8 0.0 73.3 42 329
8 - 10 years old 108 13.2 ± 17.1 6.9 0.0 114.0 16 124
Child's age vs Childhood Adenotonsillectomy Trial (CHAT) Apnea-Hypopnea Index (AHI) - Obstructive and Mixed Apnea-Hypopnea Index (Supine): (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ mixed apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 50% flow reduction and >= 3% oxygen desaturation or arousal) / hour of sleep in supine position from type I polysomnography
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 379 5.5 ± 12.7 1.6 0.0 160.0 20 399
5 - 7 years old 249 5.7 ± 14.4 1.3 0.0 160.0 13 262
8 - 10 years old 130 5.0 ± 8.8 2.0 0.0 72.7 7 137
Child's gender vs Childhood Adenotonsillectomy Trial (CHAT) Apnea-Hypopnea Index (AHI) - Obstructive and Mixed Apnea-Hypopnea Index (Supine): (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ mixed apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 50% flow reduction and >= 3% oxygen desaturation or arousal) / hour of sleep in supine position from type I polysomnography
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 395 10.1 ± 12.3 6.1 0.0 114.0 58 453
Female 203 11.2 ± 12.8 6.3 0.0 76.4 31 234
Male 192 8.9 ± 11.6 6.0 0.0 114.0 27 219
Child's gender vs Childhood Adenotonsillectomy Trial (CHAT) Apnea-Hypopnea Index (AHI) - Obstructive and Mixed Apnea-Hypopnea Index (Supine): (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ mixed apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 50% flow reduction and >= 3% oxygen desaturation or arousal) / hour of sleep in supine position from type I polysomnography
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 389 5.4 ± 12.6 1.6 0.0 160.0 64 453
Female 196 5.9 ± 15.3 1.5 0.0 160.0 38 234
Male 193 5.0 ± 9.1 1.7 0.0 68.8 26 219
Child's race vs Childhood Adenotonsillectomy Trial (CHAT) Apnea-Hypopnea Index (AHI) - Obstructive and Mixed Apnea-Hypopnea Index (Supine): (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ mixed apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 50% flow reduction and >= 3% oxygen desaturation or arousal) / hour of sleep in supine position from type I polysomnography
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 395 10.1 ± 12.3 6.1 0.0 114.0 58 453
White 140 8.2 ± 10.2 5.0 0.0 76.4 16 156
Black 219 11.3 ± 13.7 6.9 0.0 114.0 30 249
Other 36 9.8 ± 9.1 6.1 0.7 43.2 12 48
Child's race vs Childhood Adenotonsillectomy Trial (CHAT) Apnea-Hypopnea Index (AHI) - Obstructive and Mixed Apnea-Hypopnea Index (Supine): (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ mixed apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 50% flow reduction and >= 3% oxygen desaturation or arousal) / hour of sleep in supine position from type I polysomnography
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 389 5.4 ± 12.6 1.6 0.0 160.0 64 453
White 144 4.6 ± 10.0 1.3 0.0 68.8 12 156
Black 202 6.0 ± 14.5 1.9 0.0 160.0 47 249
Other 43 5.3 ± 10.4 1.3 0.0 52.9 5 48