Table 2. Basic characteristics and allele frequencies of the six SNPs.

SNP	Genes	Chr	Position	Allele	Minor allele frequency		HWE P value	OR (95%CI)	Pa
					Case	Control
rs2277698	TIMP2	17q25.3	76867017	C>T	0.247	0.237	0.7265	1.06 (0.79–1.41)	0.711
rs2009196	TIMP2	17q25.3	76870581	G>C	0.508	0.458	0.7013	1.22 (0.95–1.57)	0.112
rs7342880	TIMP2	17q25.3	76874512	C>A	0.177	0.215	0.4525	0.78 (0.57–1.07)	0.129
rs11654470	TIMP2	17q25.3	76877331	T>C	0.327	0.333	0.8865	0.98 (0.75–1.27)	0.858
rs2003241	TIMP2	17q25.3	76885117	T>C	0.218	0.271	0.1096	0.75 (0.56–1.00)	0.050
rs4789936	TIMP2	17q25.3	76897974	C>T	0.227	0.300	0.7632	0.68 (0.51–0.91)	0.009*

SNP: single nucleotide polymorphism; OR = odds ratio; 95% CI = 95% confidence interval;

HWE: Hardy-Weinberg equilibrium;

^*P < 0.05 indicates statistical significance;

^aP values were calculated using two-sided Chi-squared test/Fisher's exact test.