Forest plots of the effect estimates for the association between the Asp312Asn polymorphism in the xeroderma pigmentosum complementation group D (
) gene and the risk of non-Hodgkin’s lymphoma (NHL) under the dominant model. No significant association was detected between the Asp312Asn polymorphism and NHL risk. For each study, the estimates of the odds ratio (OR) and the 95% confidence interval (CI) are indicated by a box and a horizontal line, respectively. ◇, pooled OR and its 95% CI.