Table 2. The genotype and allele distribution of HIF-1α gene SNPs in LDD cases and controls.

	LDD		Control
	N	%	N	%	global P	adjusted OR	95%CI		adjusted P
1772CC	90	32.85%	101	33.55%	0.982	1
1772CT	143	52.19%	156	51.83%		1.03	0.72	1.48	0.88
1772TT	41	14.96%	44	14.62%		1.05	0.63	1.74	0.86
C	323	58.94%	358	59.47%	0.452	1
T	225	41.06%	244	40.53%		1.02	0.81	1.29	0.86
1790GG	94	34.31%	76	25.25%	0.011	1
1790GA	123	44.89%	134	44.52%		0.74	0.5	1.1	0.13
1790AA	57	20.80%	91	30.23%		0.51	0.32	0.79	P<0.001
G	311	56.75%	286	47.51%	0.001	1
A	237	43.25%	316	52.49%		0.69	0.55	0.87	P<0.001