Table 2. Genotype and allele frequencies of CAT exon 9 T/C polymorphism in the vitiligo patients and controls and association with the risk of vitiligo.
| CAT genotype (T/C) | Vitiligo patients (N = 89) N (%) | Controls (N = 90) N (%) | p-value | CAT alleles | Vitiligo (%) | Control (%) | p-value | Odds ratio (95% CI) |
| TT | 14 (15.7) | 20 (22.2) | 0.1 | T | 38.2 | 37.8 | 0.4 | 0.7 |
| TC | 40 (44.9) | 28 (31.1) | C | 61.8 | 62.2 | (0.4–1.49) | ||
| CC | 35 (39.3) | 42 (46.7) | *HWE | |||||
| TC+CC | 75 (84.2) | 70 (77.7) | 0.06 | x2 | 0.61 | 0.73 |
Data are reported as number with percent in parentheses.
*HWE = Hardy-Weinberg equilibrium, 95% CI: 95% confidence interval.