Table 2.

Hepatitis B and Hepatitis C Serologic Markers in Wrestlers and the Control Group

Serologic Marker	Group	Subgroup	Positive Result, No. (%)	95% Confidence Interval
Anti-HBcAg (antibodies to hepatitis B core antigen)	Wrestlers		13.4	10.2, 16.9
	Control group		10.9	7.9, 14.0
		Volleyball players	7.8	4.9, 12.3
		Soccer players	14.1	10.0, 19.6
HBsAg (hepatitis B surface antigens)	Wrestlers		1.2	0.5, 2.7
	Control group		0.5	0.1, 1.8
		Volleyball players	0	0, 1.8
		Soccer players	1.0	0.3, 3.5
Anti-HCV (antibodies to hepatitis C)	Wrestlers		0.5	0.1, 1.7
	Control group		0	0, 0.9
		Volleyball players	0	0, 1.8
		Soccer players	0	0, 1.8