Hepatitis C virus (HCV) infection & risk factors for HCV positivity in injecting & non-injecting drug users attending a de-addiction centre in northern India.
2015
Background & objectives: Injecting drug use is a major route of hepatitis C virus (HCV) infection in India, but there may be other risk factors also. This study was carried out to determine the seroprevalence of anti-HCV antibody in injecting drug users (IDUs) vs. non-IDUs (NIDUs), and to study the risk estimates for HCV seropositivity in the total sample of substance users with regard to various demographic, clinical, behavioural and personality factors. Methods: The IDUs (n = 201) and NIDUs (n = 219) were assessed for demographic, clinical and behavioural information, and were rated on instruments for severity of dependence, risk behaviour and personality profiles. Anti-HCV antibody was tested by ELISA and confirmed by recombinant immunoblot assay (RIBA) test. Results: Almost one-third of the IDUs (64 of 201; 31.8%) were positive for anti-HCV antibody, as opposed to only seven (3.2%) of the NIDUs. The four risk factors strongly associated with HCV positivity in multivariate analysis were sharing syringe [Exp(B) 75.04; 95%CI 18.28-307.96; P Interpretation & conclusions: Our study showed a high seroprevalence of anti-HCV antibody in IDUs. In the substance users, HCV positivity was significantly and independently associated with several clinical, behavioural, and personality risk factors.
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