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Table 2 Association of TCF7L2 variants with type 2 diabetes mellitus among UK-resident South Asians

From: Common variants of the TCF7L2gene are associated with increased risk of type 2 diabetes mellitus in a UK-resident South Asian population

SNP

Allele

Diabetic subjects Fa

Control subjects Fa

Genotype

Diabetic subjects n (%)b

Control subjects n (%)b

Allelic ORc (95% CI)

Het ORc,d (95% CI)

Hom ORc,d (95% CI)

 

T

0.65

0.71

TT

362 (43.7)

226 (51.7)

1.29 (1.09 – 1.54)

1.31 (1.02 – 1.68)

1.65 (1.12 – 2.44)

rs7901695

   

CT

355 (42.9)

169 (38.7)

   
 

C

0.35

0.29

CC

111 (13.4)

42 (9.6)

p = 3.60 × 10-3

p = 0.032

p = 0.012

 

C

0.64

0.71

CC

352 (42.5)

222 (51.4)

1.31 (1.11 – 1.56)

1.37 (1.07 – 1.76)

1.66 (1.13 – 2.44)

rs7903146

   

CT

360 (43.5)

166 (38.4)

   
 

T

0.36

0.29

TT

116 (14.0)

44 (10.2)

p = 1.96 × 10-3

p = 0.014

p = 9.74 × 10-3

 

G

0.53

0.59

GG

229 (27.5)

159 (36.5)

1.30 (1.11 – 1.54)

1.46 (1.12 – 1.89)

1.65 (1.18 – 2.30)

rs11196205

   

CG

417 (50.2)

199 (45.6)

   
 

C

0.47

0.41

CC

185 (22.3)

78 (17.9)

p = 1.10 × 10-3

p = 5.29 × 10-3

p = 3.33 × 10-3

 

G

0.68

0.73

GG

382 (46.8)

241 (55.4)

1.26 (1.05 – 1.51)

1.43 (1.11 – 1.83)

1.37 (0.92 – 2.05)

rs12255372

   

GT

346 (42.3)

153 (35.2)

   
 

T

0.32

0.27

TT

89 (10.9)

41 (9.4)

p = 3.60 × 10-3

p = 5.23 × 10-3

p = 0.127

  1. aF = Allele frequency. bGenotype frequency expressed as number of individuals, n – values in parentheses indicate percentage. cOR = odds ratio, 95% CI = 95% confidence interval. dGenotype odds ratios calculated compared with homozygotes for common allele; het OR = odds ratio for heterozygous genotype, hom OR = odds ratio for minor allele homozygous genotype. All values were calculated using the full dataset, the minimum age of control subjects being 35 years.