Number of risk allele | Case (n=905) n (%) | Control (n=903) n (%) | OR (95% CI)* | P value |
0–2 | 98 (10.83) | 167 (18.49) | – | – |
3 | 238 (26.30) | 257 (28.46) | 1.56 (1.15 to 1.45) | 0.00434 |
4 | 299 (33.04) | 315 (34.88) | 1.59 (1.19 to 2.15) | 0.00205 |
5 | 175 (19.34) | 121 (13.40) | 2.38 (1.70 to 3.36) | 6.57E-07 |
6–8 | 95 (10.50) | 43 (4.76) | 3.72 (2.41 to 5.82) | 4.86E-09 |
Trend test | 2.65×10−10 |
*Derived from the conditional logistic regression model adjusting for smoking status assuming an additive genetic model.