Community-based survey of HCV and HIV coinfection in injection drug abusers in Sichuan Province of China

Table 1 Prevalence of HCV/HIV coinfection in IDAs in Xichang County, Sichuan Province, China

HCV	HIV		Total
	Positive	Negative
Positive	43	226	269
Negative	0	110	110
Total	43	336	379

Table 2 Risk factors associated with HCV/HIV coinfection in IDAs in Xichang County, Sichuan Province, China

	Factor	Totaln	HCV/HIV coinfection		HCV infection		χ2	P
			n	Prevalence (%)	n	Prevalence (%)
General
Gender	Male	313	38	12.1	180	57.5
	Female	66	5	7.6	46	69.7	3.45	0.178
Age (yr)	< 29	208	25	12.0	123	59.1
	≥ 29	171	18	10.5	103	60.2	0.21	0.901
Ethnicity	Han	243	20	8.2	142	58.4
	Other	136	23	16.9	84	61.8	10.29	0.006
Years of education	≤ 6	158	22	13.9	94	59.5
	> 6	221	21	9.5	130	58.8	2.93	0.231
Marriage	Yes	113	16	14.2	66	58.4
	No	266	27	10.2	160	60.2	1.30	0.521
Employed	Yes	167	20	12.0	91	54.5
	No	212	23	10.8	135	63.7	3.52	0.172
Own home	Yes	132	20	15.2	76	57.6
	No	247	23	9.3	150	60.7	2.94	0.23
Drug abuse and drug injection behaviors (past 3 mo)
Frequency of	< 1 time/d	79	6	7.6	42	53.2
Drug injection	≥ 1 time/d	300	37	12.3	184	61.3	5.53	0.063
Frequency of shared	< 2 times/wk	332	35	10.5	193	58.1
Needles or syringes	≥ 2 times/wk	47	8	17.0	33	70.2	7.42	0.025
Frequency of	< 2 times/wk	336	36	10.7	196	58.3
Shared rinse water	≥ 2 times/wk	43	7	16.3	30	69.8	5.67	0.059
Frequency of	< 2 times/wk	335	36	10.7	195	58.2
Shared cooker	≥ 2 times/wk	44	7	15.9	31	70.5	5.95	0.051
Frequency of shared cotton	No	352	36	10.2	213	60.5
	Yes	27	7	25.9	13	48.1	6.19	0.045
Front- or back-loading	No	364	40	11.0	220	60.4
	Yes	15	3	20.0	6	40.0		0.1801
Sexual behaviors (past 6 mo)
Steady sex partner	No	209	25	12.0	124	59.3
	Yes	170	18	10.6	102	60.0	0.18	0.914
Sex behavior with non-steady sex partner	No	241	25	10.4	144	59.8
	Yes	138	18	13.0	82	59.4	0.72	0.698
Steady sex partner of IDU	No	308	35	11.4	182	59.1
	Yes	71	8	11.3	44	62.0	0.24	0.889
Gave money for sex behavior	No	303	32	10.6	186	61.4
	Yes	76	11	14.5	40	52.6	2.09	0.351
Received money for sex	No	334	39	11.7	195	58.4
Behavior	Yes	45	4	8.9	31	68.9	1.82	0.403
Addition of new sex partner (s)	No	264	25	9.5	160	60.6
	Yes	115	18	15.7	66	57.4	3.08	0.214
Presence of syphilis infection	No	321	30	9.3	189	58.9
	Yes	58	13	22.4	37	63.8	13.07	0.001

Note:¹χ² Fisher’s exact test.

Table 3 Multivariate logistic regression analyses of risk factors associated with HCV prevalence in IDAs in Xichang County, Sichuan Province, China

Factor	β	SEM	P-value	Odds ratio	95% CI
Shared needle or syringe in the past 3 mo	1.1380	0.4553	0.0124	3.121	1.278-7.617
Syphilis infection	1.0695	0.4013	0.0077	2.914	1.327-6.398