Table 2. Test of HWE for case and control groups, all SNPs were in accordance with the HWE in the control group.

SNP	Case					Control
	H0	He	χ 2	P		H0	He	χ 2	P
rs12925980	0.483	0.486	0.026	0.871		0.488	0.481	0.186	0.666
rs3751859	0.449	0.441	0.278	0.598		0.415	0.435	1.739	0.187
rs2287112	0.212	0.241	9.975	0.002		0.228	0.224	0.298	0.585
rs77700579	0.173	0.173	0.006	0.937		0.188	0.191	0.199	0.655

Note:

Ho, observed heterozygosity; He, expected heterozygosity.