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Forest plot for the association of CDH1 hypermethylation status from 12 studies showing the pooled OR under a random-effects model in 598 HCC versus 471 adjacent samples, OR = 2.42, 95% CI = 1.01 to 5.83. CDH1 = E-cadherin, CI = confidence interval, HCC = hepatocellular carcinoma, OR = odds ratio.
