Table 3.

Genotype distribution of C1orf10–1139G/C polymorphism between cases and controls and their association with ESCC

Genotype	Cases (n = 991) No. (%)	Controls (n = 984) No. (%)	OR † (95% CI)
–1139 G/C
GG	312 (31.5)	340 (34.6)	1 (ref)
GC	482 (48.6)	481 (48.9)	1.11 (0.90–1.37)
CC	197 (19.9)	163 (16.5)	1.34 (1.02–1.76)
C allele frequency	0.442	0.410

^† Data were calculated by unconditional logistic regression in comparison with the reference group carrying the GG genotype and adjusted for sex, age, and smoking status. C1orf10, Chromosome 1 open reading frame 10; CI, confidence interval; OR, odds ratio.