Allele frequency distribution between the ESCC and control populations.

Abbreviations: ESCC, esophageal squamous cell carcinoma; SNP, single nucleotide polymorphism; OR, odds ratio; CI, confidence interval. * Because the number of heterozygous alleles was too small, the P values for comparisons of major/major allele vs. major/minor allele vs. minor/minor allele were not sufficiently persuasive. The comparisons of TT+CT versus CC or TT versus CT+CC were not significant. Thus, we did not further evaluate this SNP. Allele frequency distribution between the ESCC and control populations.