Visit Number vs Number of half brothers with anxiety disorder

	N	Mean	StdDev	Median	Min	Max	Unknown	Total
Baseline	3	1.3	± 0.6	1.0	1.0	2.0	461	464
Follow-up	-	-	-	-	-	-	453	453

Treatment Arm vs Number of half brothers with anxiety disorder

Baseline

	N	Mean	StdDev	Median	Min	Max	Unknown	Total
Total	3	1.3	± 0.6	1.0	1.0	2.0	450	453
Early adenotonsillectomy (eAT)	1	1.0	-	1.0	1.0	1.0	225	226
Watchful waiting (WWSC)	2	1.5	± 0.7	1.5	1.0	2.0	225	227

Treatment Arm vs Number of half brothers with anxiety disorder

Follow-up

	N	Mean	StdDev	Median	Min	Max	Unknown	Total
Total	-	-	-	-	-	-	453	453
Early adenotonsillectomy (eAT)	-	-	-	-	-	-	226	226
Watchful waiting (WWSC)	-	-	-	-	-	-	227	227

Age vs Number of half brothers with anxiety disorder

Baseline

	N	Mean	StdDev	Median	Min	Max	Unknown	Total
Total	3	1.3	± 0.6	1.0	1.0	2.0	450	453
5-7 yrs old	2	1.5	± 0.7	1.5	1.0	2.0	327	329
8-10 yrs old	1	1.0	-	1.0	1.0	1.0	123	124

Age vs Number of half brothers with anxiety disorder

Follow-up

	N	Mean	StdDev	Median	Min	Max	Unknown	Total
Total	-	-	-	-	-	-	399	399
5-7 yrs old	-	-	-	-	-	-	262	262
8-10 yrs old	-	-	-	-	-	-	137	137

Gender vs Number of half brothers with anxiety disorder

Baseline

	N	Mean	StdDev	Median	Min	Max	Unknown	Total
Total	3	1.3	± 0.6	1.0	1.0	2.0	450	453
Female	2	1.5	± 0.7	1.5	1.0	2.0	232	234
Male	1	1.0	-	1.0	1.0	1.0	218	219

Gender vs Number of half brothers with anxiety disorder

Follow-up

	N	Mean	StdDev	Median	Min	Max	Unknown	Total
Total	-	-	-	-	-	-	453	453
Female	-	-	-	-	-	-	234	234
Male	-	-	-	-	-	-	219	219

Race vs Number of half brothers with anxiety disorder

Baseline

	N	Mean	StdDev	Median	Min	Max	Unknown	Total
Total	3	1.3	± 0.6	1.0	1.0	2.0	450	453
White	1	1.0	-	1.0	1.0	1.0	155	156
Black	1	2.0	-	2.0	2.0	2.0	248	249
Other	1	1.0	-	1.0	1.0	1.0	47	48

Race vs Number of half brothers with anxiety disorder

Follow-up

	N	Mean	StdDev	Median	Min	Max	Unknown	Total
Total	-	-	-	-	-	-	453	453
White	-	-	-	-	-	-	156	156
Black	-	-	-	-	-	-	249	249
Other	-	-	-	-	-	-	48	48

Childhood Adenotonsillectomy Trial