Table 2:

Analysis of potential risk factors for HBV infection among prisoners

Risk factor	HBsAg +	HBsAg-	P-value
Drug user	53 (9.3)	8 (2.6)	<0.001
Tattooing	20 (6.7)	41 (7)	0.86
History of surgery	23 (8.7)	38 (6.2)	0.17
History of traditional phlebotomy	9 (13.2)	52 (6.4)	0.03
History of blood transfusions	5 (8.1)	56 (6.8)	0.6
History of drug injection	5 (8.5)	48 (9.4)	0.81