Table 2.

Basic information of candidate SNPs in this study.

SNP	Gene	Position	Alleles	MAF		p a value	ORs	95% CI		p b value
			A/B	case	control	for HWE
rs243866	MMP2	16q12.2	A/G	0.112	0.173	0.329	0.79	0.56	1.13	0.194
rs243864	MMP2	16q12.2	G/T	0.112	0.140	0.342	0.78	0.55	1.10	0.151
rs865094	MMP2	16q12.2	G/A	0.290	0.266	1.000	1.13	0.87	1.45	0.357
rs11646643	MMP2	16q12.2	G/A	0.175	0.205	0.601	0.83	0.62	1.11	0.202
rs2241146	MMP2	16q12.2	A/G	0.234	0.213	0.611	1.13	0.86	1.48	0.388
rs9928731	MMP2	16q12.2	T/C	0.486	0.476	0.170	1.04	0.83	1.31	0.719
rs470154	MMP10	11q22.2	T/G	0.149	0.107	1.000	1.45	1.03	2.05	0.032∗
rs17293607	MMP10	11q22.2	G/A	0.003	0.005	1.000	0.72	0.12	4.32	0.931

SNP: single nucleotide polymorphism, HWE: Hardy-Weinberg equilibrium, OR: odds ratio, 95% CI: 95% confidence interval, and MAF: minor allele frequency.

^a P values were calculated by exact test.

^b P values were calculated by Pearson Chi-squared test.