What question did this study set out to answer?

To evaluate the distribution of hepatitis C virus (HCV) genotypes across patient age, disease severity, and duration of infection, and to determine how genotype and viremia levels affect interferon-alpha treatment response.

February 1, 1995Annals of Internal Medicine

Hepatitis C Virus Type 1b (II) Infection in France and Italy

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To evaluate the distribution of hepatitis C virus (HCV) genotypes across patient age, disease severity, and duration of infection, and to determine how genotype and viremia levels affect interferon-alpha treatment response.
Conducted a cross-sectional study in 3 university hospitals and 2 research units in France and Italy among 220 patients with detectable HCV RNA, grouped into hepatocellular carcinoma (n=35), cirrhosis without carcinoma (n=71), and chronic active hepatitis (n=114).
Administered subcutaneous interferon-alpha therapy (3 MU three times weekly for at least 6 months) to 106 patients with chronic hepatitis or cirrhosis.
Identified HCV genotypes via polymerase chain reaction with capsid-specific primers and quantified viremia levels using branched DNA signal amplification.
HCV genotype 1b was the most prevalent strain (61.8%) and correlated significantly with older age (≥60 years: 80.4% vs. <40 years: 47.4%; P=0.001), longer disease duration (≥20 years: 86.7% vs. ≤10 years: 40.4%; P=0.005), and cirrhosis (78.4% vs. 53.8% for chronic hepatitis; P<0.001).
Patients infected with HCV genotype 1b responded to interferon-alpha therapy significantly less frequently than those with other genotypes (P=0.01), despite comparable baseline viremia levels between genotypes.
Multivariate analysis confirmed that older age and cirrhosis independently associate with genotype 1b, while HCV genotype and baseline viremia level serve as independent predictors of response to interferon-alpha.

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Implication

Cross-sectional study finds severe liver disease and poorer interferon-alpha response with hepatitis C genotype 1b in chronically infected patients, indicating its critical prognostic role.

Cite This Study

Jean‐Baptiste Nousbaum (1995) studied this question.

synapsesocial.com/papers/6a7dd8f787be3f923b5ca876 https://doi.org/10.7326/0003-4819-122-3-199502010-00001

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Implication

Cross-sectional study finds severe liver disease and poorer interferon-alpha response with hepatitis C genotype 1b in chronically infected patients, indicating its critical prognostic role.

Hepatitis C Virus Type 1b (II) Infection in France and Italy

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Discussion

Implication

Cite This Study

Hepatitis C Virus Type 1b (II) Infection in France and Italy

Key Points

Discussion

Implication

Cite This Study

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