Known and probable risk factors for hepatitis C infection: A case series in north-eastern Poland

Table 1 Prevalence of all known and probable risk factors among 250 chronic hepatitis C patients (n, %)

Risk factors	Alln = 250 (100%)n(%)	Fn = 92 (36.8%)n (%)	Mn = 158 (63.2%)n (%)
Known risk factors
IVDU	22 (8.8)	4 (4.4)	18 (11.4)
Transfusion <1993	67 (26.8)	31 (33.7)	36 (22.8)
Hemodialysis	5 (2.0)	3 (3.3)	2 (1.3)
Occupational	34 (13.6)	21 (22.8)1	13 (8.2)1
exposure - health-care
Sexual exposure to HCV	2 (0.8)	0 (0.0)	2 (1.3)
Probable risk factors
Transfusions after 1992	17 (6.8)	6 (6.5)	11 (7.0)
Minor surgery	36 (14.4)	5 (5.4)2	31 (19.6)2

¹P<0.05, F vs M in occupational exposure - health-care group;

²P<0.05, F vs M in minor surgery group.