Our results showed that there was no significant difference in allele and genotype distribution of rs3738952 and haplotype distribution of rs17479770 and rs3738952 between the EH group and normotensive group, whereas the rs17479770 TT genotype in male and the full data set were significantly associated with the decreased risk of EH (<i>P</i> = 0.050, <i>P</i> = 0.042), and rs17479770 allele T in male was shown to have the correlation tendency of the decreased risk of EH (<i>P</i> = 0.064).