Forest plot for the correlation between Precore mutation G1896A and HCC risk.

(A) Pooled odds ratio for correlation of Precore G1896A with HCC (before adjustment for heterogeneity). (B) Pooled odds ratio for association between G1896A and HCC risk after adjustment for heterogeneity. (For the forest plot, the black diamond represented the OR estimate for each study and the size of the grey area reflected the weight in the pooled analysis; the horizontal line indicates the 95% confidence interval (CI); the white diamond represented the pooled odds ratio).