[Table/Fig-2]:

Prevalence of hepatitis C for risk factors

Risk factor	Total Number	Positive Cases Number	Prevalence%	OR a	CI	p-value b Chi-Square
Hospitalization History						0.02
Yes	1595	19	1.19	6.7	1.06-4.3
No	1344	6	0.44
Total	2939
Missing*	61
Jaundice History						0.04
Yes	43	2	4.65	6.3	1.43-27.7
No	2868	22	0.76
Total	2911
Missing*	89
First degree relative, infected with virus						0.04
Yes	93	3	3.22	4.1	1.2-13.9
No	2871	23	0.80
Total	2964
Missing*	36
Transfusion history						0.03
Yes	72	3	4.16	5.42	1.59-18.5
No	2894	23	0.79
Total	2966
Missing*	34
Tattoo						0.002
Yes	307	9	2.9	4.68	2.06-10.5
No	2651	17	0.64
Total	2958
Missing*	42
Outpatient surgery history						0.002
Yes	514	11	2.1	3.55	1.62-7.7
No	2450	15	0.61
Total	2964
Missing*	36
Contact with the Infected						0.01
Yes	120	4	3.3	4.6	1.55-13.7
No	2824	21			0.74
Total	2944
Missing*	56
Imprisonment						0.002
Yes	63	4	6.3	8.9	2.97-26.6
No	2912	22	0.75
Total	2975
Missing*	25
IV Drug Abuse						0.005
Yes	29	6	20.68	38.2	14.06-103.9
No	2952	20	0.67
Total	2981
Missing*	19
Smoking				6.26	2.8-13.6	0.03
Yes	417	13	3.1
No	2545	13	0. 51
Total	2962
Missing*	38

^a Abbreviations: OR, odds ratio; CI, confidence interval.

^b At 0.05 level, p is significant.

^* Some items in questionnaire were not completed by all the participants