BACKGROUND: Prior research on adherence to hepatitis C treatment has documented rates of dose reductions and early treatment discontinuation, but little is known about patients' dose-taking adherence. AIMS: To assess the prevalence of missed doses of pegylated interferon and ribavirin and examine the correlates of dose-taking adherence in clinic settings. METHODS: One hundred and eighty patients on treatment for hepatitis C (23% coinfected with HIV) completed a cross-sectional survey at the site of their hepatitis C care. RESULTS: Seven per cent of patients reported missing at least one injection of pegylated interferon in the last 4 weeks and 21% reported missing at least one dose of ribavirin in the last 7 days. Dose-taking adherence was not associated with HCV viral load. CONCLUSIONS: Self-reported dose non-adherence to hepatitis C treatment occurs frequently. Further studies of dose non-adherence (assessed by method other than self-report) and its relationship to HCV virological outcome are warranted.
BACKGROUND: Prior research on adherence to hepatitis C treatment has documented rates of dose reductions and early treatment discontinuation, but little is known about patients' dose-taking adherence. AIMS: To assess the prevalence of missed doses of pegylated interferon and ribavirin and examine the correlates of dose-taking adherence in clinic settings. METHODS: One hundred and eighty patients on treatment for hepatitis C (23% coinfected with HIV) completed a cross-sectional survey at the site of their hepatitis C care. RESULTS: Seven per cent of patients reported missing at least one injection of pegylated interferon in the last 4 weeks and 21% reported missing at least one dose of ribavirin in the last 7 days. Dose-taking adherence was not associated with HCV viral load. CONCLUSIONS: Self-reported dose non-adherence to hepatitis C treatment occurs frequently. Further studies of dose non-adherence (assessed by method other than self-report) and its relationship to HCV virological outcome are warranted.
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