Visit Number vs Externalizing problems percentile

	N	Mean	StdDev	Median	Min	Max	Unknown	Total
Baseline	440	53.8	± 30.5	54.0	5.0	99.0	13	453
Follow-up	388	49.2	± 31.7	46.0	5.0	99.5	65	453

Treatment Arm vs Externalizing problems percentile

Baseline

	N	Mean	StdDev	Median	Min	Max	Unknown	Total
Total	440	53.8	± 30.5	54.0	5.0	99.0	13	453
Early adenotonsillectomy (EAT)	220	52.6	± 30.1	54.0	5.0	99.0	6	226
Watchful waiting with supportive care (WWSC)	220	55.0	± 31.0	54.0	5.0	99.0	7	227

Treatment Arm vs Externalizing problems percentile

Follow-up

	N	Mean	StdDev	Median	Min	Max	Unknown	Total
Total	388	49.2	± 31.7	46.0	5.0	99.5	65	453
Early adenotonsillectomy (EAT)	190	47.0	± 31.7	46.0	5.0	99.0	36	226
Watchful waiting with supportive care (WWSC)	198	51.3	± 31.7	50.0	5.0	99.5	29	227

Child's age vs Externalizing problems percentile

Baseline

	N	Mean	StdDev	Median	Min	Max	Unknown	Total
Total	440	53.8	± 30.5	54.0	5.0	99.0	13	453
5 - 7 years old	317	54.6	± 30.2	54.0	5.0	99.0	12	329
8 - 10 years old	123	51.8	± 31.3	54.0	5.0	99.0	1	124

Child's age vs Externalizing problems percentile

Follow-up

	N	Mean	StdDev	Median	Min	Max	Unknown	Total
Total	387	49.1	± 31.7	46.0	5.0	99.5	12	399
5 - 7 years old	253	50.1	± 31.7	50.0	5.0	99.0	9	262
8 - 10 years old	134	47.1	± 31.6	38.0	5.0	99.5	3	137

Child's gender vs Externalizing problems percentile

Baseline

	N	Mean	StdDev	Median	Min	Max	Unknown	Total
Total	440	53.8	± 30.5	54.0	5.0	99.0	13	453
Female	226	50.8	± 30.9	46.0	6.0	99.0	8	234
Male	214	57.0	± 29.9	54.0	5.0	99.0	5	219

Child's gender vs Externalizing problems percentile

Follow-up

	N	Mean	StdDev	Median	Min	Max	Unknown	Total
Total	388	49.2	± 31.7	46.0	5.0	99.5	65	453
Female	197	45.2	± 31.2	38.0	5.0	99.0	37	234
Male	191	53.3	± 31.8	54.0	5.0	99.5	28	219

Child's race vs Externalizing problems percentile

Baseline

	N	Mean	StdDev	Median	Min	Max	Unknown	Total
Total	440	53.8	± 30.5	54.0	5.0	99.0	13	453
White	151	55.4	± 29.4	54.0	5.0	99.0	5	156
Black	243	52.9	± 30.4	50.0	5.0	99.0	6	249
Other	46	53.2	± 34.8	54.0	5.0	99.0	2	48

Child's race vs Externalizing problems percentile

Follow-up

	N	Mean	StdDev	Median	Min	Max	Unknown	Total
Total	388	49.2	± 31.7	46.0	5.0	99.5	65	453
White	142	46.7	± 31.2	42.0	5.0	99.5	14	156
Black	204	50.5	± 32.0	46.0	5.0	99.0	45	249
Other	42	51.1	± 32.4	54.0	5.0	99.0	6	48

Childhood Adenotonsillectomy Trial

Race