Table IV.

Genotype and allele frequencies of α2 integrin BglII and NdeI polymorphisms in patients with and without DR.

A, BglII
Genotypes and alleles	No-DR group, n (%)	DR group, n (%)	χ2	OR	95% CI	P-value
Genotypes
GG	21 (37.50)	31 (25.60)	2.5895	1.7362	0.87–3.43	0.1076
AG	35 (62.50)	90 (74.40)	2.5895	0.5760	0.29–1.14	0.1076
AA	0 (0)	0 (0)
Alleles
G	77 (68.75)	152 (62.80)	1.1794	1.3017	0.81–2.11	0.2775
A	35 (31.25)	90 (37.20)	1.1794	0.7682	0.47–1.23	0.2775
B, NdeI
Genotypes and alleles	No-DR group, n (%)	DR group, n (%)	χ2	OR	95% CI	P-value
Genotypes
CC	2 (3.60)	7 (5.80)	0.3865	0.6047	0.08–2.82	0.5341
TC	54 (96.40)	114 (94.20)	0.3865	1.6536	0.35–11.95	0.5341
TT	0 (0)	0 (0)
Alleles
C	58 (51.80)	28 (52.90)	0.0375	0.9567	0.61–1.50	0.8464
T	54 (48.20)	14 (47.10)	0.0375	1.0452	0.66–1.64	0.8464

DR, diabetic retinopathy; OR, odds ratio; CI, confidence interval.