From: XAB2 tagSNPs contribute to non-small cell lung cancer susceptibility in Chinese population
Variables | Cases (n = 470) | Controls (n = 470) | P valuea | ||
---|---|---|---|---|---|
No | (%) | No | (%) | ||
Gender | Â | Â | Â | Â | 0.832 |
 Male | 324 | 68.9 | 328 | 69.8 |  |
 Female | 146 | 31.1 | 142 | 30.2 |  |
Age | Â | Â | Â | Â | 0.470 |
 <50 | 84 | 17.9 | 96 | 20.4 |  |
 50–59 | 177 | 37.7 | 187 | 39.8 |  |
 60–69 | 129 | 27.4 | 111 | 23.6 |  |
 ≥70 | 80 | 17.0 | 76 | 16.2 |  |
Smoking status | Â | Â | Â | Â | 0.321 |
 Non-smoker | 265 | 56.4 | 281 | 59.8 |  |
 Ever-smoker | 205 | 43.6 | 189 | 40.2 |  |
Pack-year smoked | Â | Â | Â | Â | 0.001 |
 <25 | 75 | 36.6 | 96 | 50.8 |  |
 ≥25 | 130 | 63.4 | 93 | 49.2 |  |