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Published on: July 16, 2012
Risk factors for hepatitis C virus infection in individuals infected with the HIV
F H Wolff1, S C Fuchs, N T Barcellos
1Post-Graduate Program in Medical Sciences, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil. fhwolff@terra.com.br
Insights
Hepatitis C virus (HCV) infection in individuals with HIV is linked to sharing personal hygiene items, not just injecting drug use. This finding is crucial for developing new prevention strategies against HCV-HIV co-infection.
Area of Science:
- Infectious Diseases
- Hepatology
- Public Health
Background:
- Hepatitis C virus (HCV) transmission routes among HIV-AIDS patients, beyond injecting drug use, are not well-defined.
- Existing risk estimates for HCV infection in HIV-positive individuals often lack adjustment for confounding factors.
Purpose of the Study:
- To investigate and characterize the factors associated with Hepatitis C virus infection in individuals living with Human Immunodeficiency Virus.
- To identify non-traditional transmission routes of HCV in a co-infected population.
Main Methods:
- A case-control study was conducted in Porto Alegre, Southern Brazil.
- Cases comprised patients co-infected with HIV and HCV, while controls were infected solely with HIV.
- Data were collected from consecutively enrolled patients at a public healthcare outpatient HIV-AIDS reference center.
Main Results:
- Male gender, age between 30-49 years, elementary education, and lower family income were associated with HCV co-infection.
- Sharing personal hygiene objects (OR 2.0) and crack cocaine use (OR 2.8) were independently linked to HCV co-infection.
- Injecting drug use showed a strong association (OR 21.6) with Hepatitis C virus and HIV co-infection.
Conclusions:
- The study confirms the established risk profile for HCV-HIV co-infection.
- Sharing personal hygiene objects emerges as a potential, previously underestimated, route for HCV transmission in this population.
- Findings underscore the need for targeted preventive strategies addressing hygiene practices to curb HCV spread among HIV-positive individuals.
Background:
Except for injecting drug use, other routes of transmission for hepatitis C virus among HIV-AIDS patients have not been consistently described, and risk estimates are often not adjusted for confounding factors.
Aims:
To evaluate characteristics associated with hepatitis C virus infection in individuals infected with the HIV.
Patients:
Cases were patients co-infected by HIV and hepatitis C virus, and controls were infected only by HIV.
Methods:
Cases and controls were consecutively enrolled at a public health care outpatient HIV-AIDS reference centre in Porto Alegre, Southern Brazil.
Results:
A total of 227 cases (63% men; 40.3+/-8.7 years) and 370 controls (44.6% men; 38.9+/-9.8 years) were enrolled in the study. In a multiple logistic regression model, male gender (odds ratio 1.9; 95% confidence interval 1.3-2.7), age between 30 and 49 years (odds ratio 2.1; 95% confidence interval 1.2-3.7), elementary school education (odds ratio 4.2; 95% confidence interval 1.9-9.6), lower family income (odds ratio 1.7; 95% confidence interval 1.1-2.7), sharing personal hygiene objects (odds ratio 2.0; 95% confidence interval 1.3-3.3), using injected drugs (odds ratio 21.6; 95% confidence interval 10.8-43.0) and crack cocaine (odds ratio 2.8; 95% confidence interval 1.1-6.9) were independently associated with co-infection by hepatitis C virus.
Conclusion:
These results confirm the risk profile for hepatitis C virus-HIV infection and suggest that sharing personal hygiene objects might explain the transmission of virus C to those not infected by the usual routes, which may be of relevance for developing preventive strategies.
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