SNPs (position) | Genotype and allele | Patients | Controls | OR | Chi-square value | P value |
---|---|---|---|---|---|---|
 |  | (N = 372) | (N = 110) | (95% CI) |  |  |
IL 6 rs1800796 (− 572) | Genotype |  |  |  |  |  |
 | GG | 102 (27.42) | 50 (45.45) |  |  |  |
 | GC | 198 (53.22) | 52 (47.27) |  | 16.78 |  < 0.0001*** |
 | CC | 72 (19.35) | 8 (7.27) |  |  |  |
 | Allele |  |  |  |  |  |
 | G | 402 (54.03) | 152 (69.1) | 0.5259 (0.3817–0.7244) |  |  |
 | C | 342 (45.97) | 68 (30.91) |  |  |  < 0.0001*** |
IL 6 rs1800797 (− 597) | Genotype |  |  |  |  |  |
 | GG | 259 (69.62) | 76 (69.1) |  |  |  |
 | GA | 102 (27.42) | 34 (30.9) |  | 0.1876 | 0.6649 |
 | AA | 11 (2.95) | 0 (0.0) |  |  |  |
 | Allele |  |  |  |  |  |
 | G | 620 (83.33) | 186 (84.54) | 0.9140 (0.6–1.4) |  | 0.7559 |
 | A | 124 (16.67) | 34 (15.45) |  |  |  |
IL 8 rs4073 (− 251) | Genotype |  |  |  |  |  |
 | AA | 99 (26.61) | 46 (41.82) |  |  |  |
 | AT | 195 (52.42) | 55 (50) |  | 14.25 | 0.0002*** |
 | TT | 78 (20.96) | 9 (8.18) |  |  |  |
 | Allele |  |  |  |  |  |
 | A | 393 (52.82) | 147 (66.82) | 0.5560(0.4056–0.7623) |  | 0.0003*** |
 | T | 351 (47.17) | 73 (33.18) |  |  |  |
IL 8 rs2227306 (+ 781) | Genotype |  |  |  |  |  |
 | CC | 201 (54.03) | 56 (50.91) |  | 0.0372 | 0.847 |
 | CT | 155 (41.67) | 54 (49.1) |  |  |  |
 | TT | 16 (9.3) | 0 (0.0) |  |  |  |
 | Allele |  |  |  |  |  |
 | C | 557 (74.86) | 166 (75.45) | 0.9689(0.6835–1.374) |  | 0.9294 |
 | T | 187 (25.13) | 54 (24.54) |  |  |  |