Race

Visit Number vs Conners' Attention Deficit Hyperactivity Disorder(ADHD) Index T-Score

	N	Mean	StdDev	Median	Min	Max	Unknown	Total
Baseline	453	52.9	± 10.9	50.0	39.0	90.0	-	453
Follow-up	392	51.5	± 10.5	48.0	39.0	90.0	61	453

Treatment Arm vs Conners' Attention Deficit Hyperactivity Disorder(ADHD) Index T-Score

Baseline

	N	Mean	StdDev	Median	Min	Max	Unknown	Total
Total	453	52.9	± 10.9	50.0	39.0	90.0	-	453
Early adenotonsillectomy (EAT)	226	52.6	± 10.8	50.0	39.0	90.0	-	226
Watchful waiting with supportive care (WWSC)	227	53.2	± 11.1	50.0	40.0	90.0	-	227

Treatment Arm vs Conners' Attention Deficit Hyperactivity Disorder(ADHD) Index T-Score

Follow-up

	N	Mean	StdDev	Median	Min	Max	Unknown	Total
Total	392	51.5	± 10.5	48.0	39.0	90.0	61	453
Early adenotonsillectomy (EAT)	193	50.2	± 10.7	46.0	39.0	89.0	33	226
Watchful waiting with supportive care (WWSC)	199	52.7	± 10.2	50.0	40.0	90.0	28	227

Child's age vs Conners' Attention Deficit Hyperactivity Disorder(ADHD) Index T-Score

Baseline

	N	Mean	StdDev	Median	Min	Max	Unknown	Total
Total	453	52.9	± 10.9	50.0	39.0	90.0	-	453
5 - 7 years old	329	52.7	± 10.8	50.0	39.0	86.0	-	329
8 - 10 years old	124	53.3	± 11.4	50.0	40.0	90.0	-	124

Child's age vs Conners' Attention Deficit Hyperactivity Disorder(ADHD) Index T-Score

Follow-up

	N	Mean	StdDev	Median	Min	Max	Unknown	Total
Total	391	51.4	± 10.5	48.0	39.0	90.0	8	399
5 - 7 years old	257	51.4	± 10.3	48.0	39.0	87.0	5	262
8 - 10 years old	134	51.4	± 10.9	49.0	40.0	90.0	3	137

Child's gender vs Conners' Attention Deficit Hyperactivity Disorder(ADHD) Index T-Score

Baseline

	N	Mean	StdDev	Median	Min	Max	Unknown	Total
Total	453	52.9	± 10.9	50.0	39.0	90.0	-	453
Female	234	52.6	± 11.5	50.0	40.0	90.0	-	234
Male	219	53.1	± 10.4	51.0	39.0	83.0	-	219

Child's gender vs Conners' Attention Deficit Hyperactivity Disorder(ADHD) Index T-Score

Follow-up

	N	Mean	StdDev	Median	Min	Max	Unknown	Total
Total	392	51.5	± 10.5	48.0	39.0	90.0	61	453
Female	200	50.8	± 10.7	46.0	40.0	90.0	34	234
Male	192	52.2	± 10.4	50.0	39.0	87.0	27	219

Child's race vs Conners' Attention Deficit Hyperactivity Disorder(ADHD) Index T-Score

Baseline

	N	Mean	StdDev	Median	Min	Max	Unknown	Total
Total	453	52.9	± 10.9	50.0	39.0	90.0	-	453
White	156	52.6	± 10.3	50.0	40.0	84.0	-	156
Black	249	52.8	± 11.3	50.0	39.0	90.0	-	249
Other	48	54.3	± 11.4	51.5	40.0	81.0	-	48

Child's race vs Conners' Attention Deficit Hyperactivity Disorder(ADHD) Index T-Score

Follow-up

	N	Mean	StdDev	Median	Min	Max	Unknown	Total
Total	392	51.5	± 10.5	48.0	39.0	90.0	61	453
White	143	50.6	± 9.3	46.0	39.0	79.0	13	156
Black	206	51.7	± 11.1	49.0	40.0	90.0	43	249
Other	43	53.2	± 11.7	50.0	40.0	85.0	5	48

Childhood Adenotonsillectomy Trial