Case-finding for hepatitis C in primary care: a mixed-methods service evaluation

Shivani Datta1, Jeremy Horwood, Matthew Hickman

  • 1Centre for Academic Primary Care, School of Social and Community Medicine, University of Bristol, Bristol.

Insights

Many at-risk individuals, including people who inject drugs (PWID) and immigrants, remain untested for hepatitis C virus (HCV). General practitioners (GPs) face barriers to testing, highlighting the need for improved case-finding strategies.

Area of Science:

  • Hepatology
  • Public Health
  • General Practice

Background:

  • Hepatitis C virus (HCV) infection is often asymptomatic, leading to delayed diagnosis and severe liver complications like cirrhosis, liver failure, and cancer.
  • People who inject drugs (PWID) and immigrants from high-prevalence regions are key at-risk populations for HCV.
  • Despite increased HCV-related hospitalizations, a significant proportion of chronically infected individuals remain undiagnosed.

Purpose of the Study:

  • To identify patients at risk for hepatitis C using routine general practitioner (GP) data.
  • To determine the percentage of at-risk patients who have not been tested for HCV.
  • To explore GPs' perspectives and barriers concerning HCV testing in primary care.

Main Methods:

  • A mixed-methods service evaluation was conducted in six NHS general practices in Bristol.
  • Patients at risk of HCV were identified using a density-based selection of PWID.
  • Data on HCV test results were obtained from the Health Protection Agency laboratory, and 17 GPs were interviewed regarding their testing practices and views.

Main Results:

  • Out of 3765 identified at-risk patients, 3051 (81%) had no recorded test result, including 53% of PWID and 93% of the 'ethnicity' group.
  • While all GPs reported routinely testing PWID, most tested immigrants for HIV and hepatitis B more frequently than for HCV.
  • Identified barriers to HCV testing included failure to inquire about risk factors, competing clinical priorities, challenges in accessing patient data, and patient lifestyle factors.

Conclusions:

  • Computerized prompts and enhanced GP education are necessary to improve HCV testing rates among at-risk populations.
  • Integrating questions about country of origin and drug use into new-patient questionnaires could enhance HCV case-finding efforts.
Abstract

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