	Patients With Non-AT/AU			Patients With AT/AU
Characteristic	Non-AT/AU (n=1105)	Matched Controls Without AA (n=3315)	P Value	AT/AU (n=130)	Matched Controls Without AA (n=390)	P Value
Age (years), mean ± SD	14.6±1.6	14.6±1.6	1.000	14.6±1.7	14.6±1.7	1.000
Sex, n (%)			1.000			1.000
Female	596 (53.9)	1788 (53.9)		69 (53.1)	207 (53.1)
Male	509 (46.1)	1527 (46.1)		61 (46.9)	183 (46.9)
US region, n (%)			1.000			1.000
South	431 (39.0)	1293 (39.0)		52 (40.0)	156 (40.0)
Northeast	283 (25.6)	849 (25.6)		35 (26.9)	105 (26.9)
Midwest	239 (21.6)	717 (21.6)		19 (14.6)	57 (14.6)
West	152 (13.8)	456 (13.8)		24 (18.5)	72 (18.5)
Insurance type, n (%)			1.000			1.000
Managed care^a	830 (75.1)	2490 (75.1)		103 (79.2)	309 (79.2)
Consumer-driven^b	258 (23.3)	774 (23.3)		26 (20.0)	78 (20.0)
Comprehensive	17 (1.5)	51 (1.5)		1 (0.8)	3 (0.8)
Comorbidities, n (%)
Anemia	11 (1.0)	22 (0.7)	.364	1 (0.8)	3 (0.8)	1.000
Any atopic disorder^c	252 (22.8)	577 (17.4)	<.001	32 (24.6)	65 (16.7)	0.059
Any autoimmune disorder^d	55 (5.0)	72 (2.2)	<.001	8 (6.2)	10 (2.6)	0.097
Any cardiovascular disorder^e	53 (4.8)	189 (5.7)	.285	9 (6.9)	28 (7.2)	1.000
Any mental health disorder^f	143 (12.9)	539 (16.3)	.009	24 (18.5)	68 (17.4)	0.894
CCI score, mean ± SD	0.1±0.3	0.1±0.3	1.000	0.1±0.3	0.1±0.3	1.000