Figure 2From: Hepatitis C virus infection and the risk of intrahepatic cholangiocarcinoma and extrahepatic cholangiocarcinoma: evidence from a systematic review and meta-analysis of 16 case-control studiesForest plot of cholangiocarcinoma risk associated with HCV infection. A statistically significant positive association between HCV infection and CCA incidence was found (OR = 5.44, 95% CI, 2.72 to 10.89) in a random-effects model in the meta-analysis of four case-control studies.Back to article page