Table 2.

Allelic (af) and genotype (gf) frequencies of IL1A and VDR polymorphisms in controls subjects and patients with IDD.

SNPs	Patients		Controls
	(n = 100)		(n = 100)
rs1800587 (IL1A)
Alleles	n	af	n	af
T	53	0.27	55	0.28
C	147	0.74	145	0.73
Genotypes	n	gf	n	gf
TT	4	0.04	10	0.10
CT	45	0.45	35	0.35
CC	51	0.51	55	0.55
rs2228570 (VDR)
Alleles	n	af	n	af
V	105	0.53	115	0.58
T	95	0.48	85	0.43
Genotypes	n	gf	n	gf
VV	20	0.20	32	0.32
TV	65	0.65	51	0.51
TT	15	0.15	17	0.17
rs731236 (VDR)
Alleles	n	af	n	af
C	35	0.18	41	0.21
T	165	0.83	159	0.80
Genotypes	n	gf	n	gf
CC	4	0.04	3	0.03
TC	27	0.27	35	0.35
TT	69	0.69	62	0.62