Table 1.

Clinical Characteristics and Sex Differences of Patients With Myocarditis

Codiagnosis	Prevalence n (%)			P Valuea
	All (N=213)	Boys (n=163)	Girls (n=50)
Upper respiratory tract infection	14 (6.6)	9 (5.5)	5 (10.0)	0.326
Renal disease	10 (4.7)	9 (5.5)	1 (2.0)	0.458
Heart failure or cardiomyopathy	5 (2.4)	1 (0.6)	4 (8.0)	0.011
Previous cardiac transplant	5 (2.4)	0	5 (10.0)	<0.001
Lower respiratory tract infection	4 (1.9)	3 (1.8)	1 (2.0)	1.000
Inflammatory bowel disease	2 (0.9)	1 (0.6)	1 (2.0)	0.415
Juvenile rheumatoid arthritis or SLE	2 (0.9)	1 (0.6)	1 (2.0)	0.415
Congenital heart disease	2 (0.9)	0	2 (4.0)	0.054
Stroke	2 (0.9)	1 (0.6)	1 (2.0)	0.415
Resuscitation	2 (0.9)	0	2 (4.0)	0.054
Gastroenteritis	2 (0.9)	0	2 (4.0)	0.054
Diabetes mellitus	2 (0.9)	1 (0.6)	1 (2.0)	0.415
Down syndrome	1 (0.5)	1 (0.6)	0	1.000
Prematurity	1 (0.5)	1 (0.6)	0	1.000
Allergic purpura	1 (0.5)	1 (0.6)	0	1.000
Grade III atrioventricular block	1 (0.5)	1 (0.6)	0	1.000
Sepsis	1 (0.5)	1 (0.6)	0	1.000
Asthma	1 (0.5)	1 (0.6)	0	1.000
Pulmonary embolism	1 (0.5)	1 (0.6)	0	1.000

SLE indicates systemic lupus erythematosus.

^aBetween sexes.