Lack of Association between rs2067474 Polymorphism in Histamine Receptor H₂ Gene and Breast Cancer in Chinese Han Population

Table 2

Frequency distributions of HRH2 rs2067474 genotypes and allele and their associations with the risk of developing breast cancer.

rs2067474	Breast cancer	Control		OR (95% CI)
	n (%)	n (%)
Genotype
GG	158 (78.6)	169 (71.0)	0.174	—
GA	38 (18.9)	59 (24.8)
AA	5 (2.5)	10 (4.2)
Allele
G	354 (88.1)	397 (83.4)	0.054	0.681 (0.463–1.003)
A	48 (11.9)	79 (16.6)

OR: odd ratio, CI: confidence interval, and Ref: reference category.
^a values were calculated from two-sided chi-square tests.