Table 3.

Serology of 1091 DUs by gender

		No. of subjects (%)
Serology		Female*	Male*	Total*	p*
HIV	Negative	138 (80.7)	761 (82.7)	899 (82.4)	0.040
	Positive	29 (17.0)	107 (11.6)	136 (12.5)
	Unknown	4 (2.3)	52 (5.6)	56 (5.1)
HBV	Negative	47 (27.5)	195 (21.2)	242 (22.1)	0.096
	Positive	76 (44.4)	385 (41.8)	461 (42.2)
	Unknown	6 (3.5)	55 (6.0)	61 (6.0)
	Vaccinated	42 (24.6)	285 (31.0)	327 (30.0)
HCV	Negative	33 (19.3)	209 (22.7)	242 (22.2)	0.806
	Positive	127 (74.3)	657 (71.4)	784 (71.9)
	Unknown	11 (6.4)	54 (5.9)	65 (6.0)
TPHA	Negative	128 (74.9)	679 (73.8)	807 (74.0)	0.060
	Positive	6 (3.5)	11 (1.2)	17 (1.5)
	Unknown	37 (21.6)	230 (25.0)	267 (24.5)

Percentages by column; *p-value of the chi-square test for association.