Post-load insulin resistance does not predict virological response to treatment of chronic hepatitis C patients without the metabolic syndrome
2012
Abstract Background and aim The role of insulin resistance in predicting virological response to therapy of chronic hepatitis C is debated. We assessed the association between basal (defined as homeostasis model assessment of insulin resistance (HOMA-IR) > 2) and post-load insulin resistance (as oral glucose insulin sensitivity index Methods Observational prospective study of 124 treatment-naive patients with chronic hepatitis C not fulfilling the metabolic syndrome criteria, adherent to a standard treatment with pegylated interferon alpha plus ribavirin. Results Insulin resistance was detected in 50% (by HOMA-IR) and 29% (by oral glucose insulin sensitivity index) of patients. Independent predictors of rapid virologic response were hepatitis C virus (HCV) genotype 2 (odds ratio 5.66; 95% confidence interval 1.88–17.01), HCV genotype 3 (odds ratio 5.23; 95% confidence interval 1.84–14.84) and lower basal ferritin levels (odds ratio 0.99; 95% confidence interval 0.993–0.998). Independent predictors of sustained virologic response were HCV genotype 2 (odds ratio 19.54; 95% confidence interval 2.29–166.41) and HCV genotype 3 (odds ratio 3.24; 95% confidence interval 1.10–9.58). Rapid virologic response was by itself predictive of sustained virologic response (odds ratio 40.90; 95% confidence interval 5.37–311.53). Conclusions Insulin resistance, measured by both static and dynamic methods, does not predict rapid or sustained virologic response in chronic hepatitis C patients without the metabolic syndrome.
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