| Controls (n = 445) | Cases (n = 390) |  | ||
---|---|---|---|---|---|
Characteristics | n | % | n | % | P-valuea |
Age, years | Â | Â | Â | Â | Â |
 ≤ 48 | 239 | 53.7 | 82 | 21.0 | <0.001 |
 >48 | 206 | 46.3 | 308 | 79.0 |  |
Smoking status | Â | Â | Â | Â | Â |
 Ever | 283 | 63.6 | 181 | 46.4 | <0.001 |
 Never | 162 | 36.4 | 209 | 53.6 |  |
Alcohol drinking Status | Â | Â | Â | Â | Â |
 Ever | 292 | 65.6 | 137 | 39.0 | <0.001 |
 Never | 153 | 34.4 | 214 | 61.0 |  |