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Published on: February 19, 2019
Chronic hepatitis C virus infection: it is not only about the liver
Aline G Vigani1, Raquel Tozzo, Audrey Quezada
1Ambulatório Municipal de Hepatites Virais Ouro Verde, Campinas, SP, Brazil.
Insights
Chronic hepatitis C virus (HCV) infection is linked to older age, alcohol, smoking, and drug use. Chronic hepatitis B virus (HBV) infection is associated with older age and male sex.
Area of Science:
- Hepatology
- Virology
- Epidemiology
Background:
- Hepatitis B virus (HBV) and hepatitis C virus (HCV) infections present similarly but differ in epidemiology and prognosis.
- Understanding demographic, comorbidity, and lifestyle differences in patients with chronic HBV and HCV is crucial for effective management.
- This study compares patient populations with chronic HCV, chronic HBV, and resolved HCV infections.
Purpose of the Study:
- To compare demographic characteristics, comorbidities, and lifestyle factors between patients with chronic HCV and chronic HBV infections.
- To identify factors associated with chronic HCV infection compared to chronic HBV infection.
- To identify factors associated with chronic HCV infection compared to resolved HCV infection.
Main Methods:
- A retrospective study included 756 patients from a municipal reference clinic (March 2009-May 2012).
- Data were collected via standardized questionnaires on epidemiological information, comorbidities, and lifestyle.
- Multivariate analyses were performed to identify independent associations.
Main Results:
- Chronic HCV infection was associated with older age, alcohol abuse, smoking, and illicit drug use.
- Chronic HCV infection was also associated with older age, illicit drug use, and presence of comorbidities when compared to resolved HCV.
- Chronic HBV infection was independently associated with older age and male sex when compared to resolved HCV infection.
Conclusions:
- Patients with chronic HCV infection exhibit complex profiles requiring a multidisciplinary approach.
- Distinct epidemiological and lifestyle factors differentiate chronic HCV and HBV infections.
- Age and sex are key differentiators for chronic HBV infection in this cohort.
Background And Aims:
Although hepatitis B virus (HBV) and hepatitis C virus (HCV) are both hepatotropic and quite similar in terms of clinical manifestations and histopathology, their respective infections are distinct in terms of epidemiology and prognosis. Recognizing the differences between patients with HBV and HCV infection with respect to demographic characteristics, prevalence of comorbidities, and presence of lifestyle factors aids the proper treatment of these patients. We aimed to compare two populations with chronic viral liver disease (chronic HCV and chronic HBV), each of them with resolved hepatitis C.
Patients And Methods:
We included patients referred to a municipal reference clinic from March 2009 through May 2012. Patient data were collected using standardized questionnaires at the patients' first visit to clinic. Questionnaires included epidemiological information, presence of comorbidities, and lifestyle.
Results:
A total of 756 patients were included in the study, 348 (46.0%) with chronic HCV infection, 176 (23.3%) with chronic HBV infection, and 232 (30.7%) with resolved HCV infection. Multivariate analysis including patients with chronic HCV infection and chronic HBV infection indicated that age [adjusted odds ratio (AOR)=1.06; 95% confidence interval (CI): 1.03-1.08], alcohol abuse (AOR=1.58; 95% CI: 1.01-2.49), smoking (AOR=1.64; 95% CI: 1.00-2.17), and illicit drug (AOR=2.92; 95% CI: 1.69-5.02) use were associated independently with chronic HCV infection. Multivariate analyses including patients with chronic HCV infection and those patients with resolved HCV infection, presence of at least one comorbidity (AOR=1.94; 95% CI: 1.12-3.3), illicit drug use (AOR=3.24; 95% CI: 1.90-5.54), and age (AOR=1.03; 95% CI: 1.01-1.05) were independently associated with chronic HCV infection. Age (AOR=0.98; 95% CI: 0.96-0.99) and male sex (AOR=1.93; 95% CI: 1.26-2.95) were the only variables associated significantly with chronic HBV infection in the multivariate analysis between patients with chronic HBV infection and resolved HCV infection.
Conclusion:
Our results highlight that patients with chronic HCV infection are complex and require a multidisciplinary approach during patient follow-up and clinical management.
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