| SNP | Genotype | Control, n (%) | Case, n (%) | OR (95% CI) | p |
| EPHX1 | T/T | 156 (29.1) | 71 (38.4) | 1 | |
| Y113H | T/C | 277 (51.7) | 78 (42.2) | 0.64 (0.43 - 0.93) | 0.02 |
| rs1051740 | C/C | 103 (19.2) | 36 (19.5) | 0.79 (0.49 - 1.27) | 0.32 |
| T/C-C/C | 380 (70.9) | 114 (61.6) | 0.68 (0.48 - 0.96) | 0.03 | |
| T allele | 589 (54.9) | 220 (59.5) | 1 | ||
| C allele | 483 (45.1) | 150 (40.5) | 0.84 (0.66 - 1.07) | 0.17 | |
| EPHX1 | A/A | 399 (74.4) | 125 (67.6) | 1 | |
| H139R | A/G | 123 (22.9) | 56 (30.3) | 1.43 (0.98 - 2.09) | 0.07 |
| rs2234922 | G/G | 14 (2.6) | 4 (2.2) | 0.90 (0.29 - 2.81) | 0.85 |
| A/G-G/G | 137 (25.6) | 60 (32.4) | 1.37 (0.95 - 1.99) | 0.09 | |
| A allele | 921 (85.9) | 306 (82.7) | 1 | ||
| G allele | 151 (14.1) | 64 (17.3) | 1.26 (0.91 - 1.74) | 0.17 |