Visit Number vs If YES, how many HALF sisters?

	N	Mean	StdDev	Median	Min	Max	Unknown	Total
Baseline	273	1.2	± 1.3	1.0	0.0	7.0	180	453
Follow-up	-	-	-	-	-	-	453	453

Treatment Arm vs If YES, how many HALF sisters?

Baseline

	N	Mean	StdDev	Median	Max	Unknown	Total
Total	273	1.2	± 1.3	1.0	7.0	180	453
Early adenotonsillectomy (EAT)	135	1.3	± 1.3	1.0	7.0	91	226
Watchful waiting with supportive care (WWSC)	138	1.1	± 1.3	1.0	7.0	89	227

Treatment Arm vs If YES, how many HALF sisters?

Follow-up

	N	Mean	StdDev	Median	Min	Max	Unknown	Total
Total	-	-	-	-	-	-	453	453
Early adenotonsillectomy (EAT)	-	-	-	-	-	-	226	226
Watchful waiting with supportive care (WWSC)	-	-	-	-	-	-	227	227

Child's age vs If YES, how many HALF sisters?

Baseline

	N	Mean	StdDev	Median	Max	Unknown	Total
Total	273	1.2	± 1.3	1.0	7.0	180	453
5 - 7 years old	193	1.3	± 1.3	1.0	7.0	136	329
8 - 10 years old	80	1.1	± 1.3	1.0	7.0	44	124

Child's age vs If YES, how many HALF sisters?

Follow-up

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

Child's gender vs If YES, how many HALF sisters?

Baseline

	N	Mean	StdDev	Median	Max	Unknown	Total
Total	273	1.2	± 1.3	1.0	7.0	180	453
Female	148	1.2	± 1.3	1.0	7.0	86	234
Male	125	1.2	± 1.3	1.0	7.0	94	219

Child's gender vs If YES, how many HALF sisters?

Follow-up

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

Child's race vs If YES, how many HALF sisters?

Baseline

	N	Mean	StdDev	Median	Max	Unknown	Total
Total	273	1.2	± 1.3	1.0	7.0	180	453
White	58	0.8	± 1.0	1.0	5.0	98	156
Black	187	1.3	± 1.4	1.0	7.0	62	249
Other	28	1.4	± 1.2	1.0	4.0	20	48

Child's race vs If YES, how many HALF sisters?

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

Histogram