Table 1.
VDR-FokI polymorphism in study subjects
| T1DM patients | Controls | |
| n = 110 | n = 250 | |
| Genotype frequenciesa | ||
| FF | 52(47%) | 82 (33%) |
| Ff | 52(47%) | 138(55%) |
| ff | 6 (6%) | 30 (12%) |
| Allele frequenciesb | ||
| F | 156 (71%) | 302(60%) |
| f | 64 (29%) | 198(40%) |
| Phenotype frequenciesc | ||
| F positive | 104 (95%) | 220(88%) |
| f positive | 58 (53%) | 168(67%) |
Values shown are the number of subjects (percentage in parentheses). aΧ2 test of heterogeneity between T1DM patients and control subjects. Χ2 = 8.48, 2 degrees of freedom; P = 0.014. bΧ2 test of heterogeneity between T1DM patients and control subjects. Χ2 = 7.29, 1 degree of freedom; P = 0.0069. cRelative risk ratio for F phenotype = 2.4.