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Pooled odds ratio from four studies, including 111 squamous cell carcinomas and 106 adenocarcinomas.
Notes: Odds ratio, 0.35; 95% CI, 0.19–0.66; P=0.001, which indicated that CDH13 hypermethylation plays a more important role in the pathogenesis of adenocarcinoma.
Abbreviations: CI, confidence interval; M–H, Mantel–Haenszel.
