Table 1 Study population characteristics
Cohort | Agea (SD) | Males (%) | Smokers (%) |
|---|---|---|---|
Primary subset - 1,813 (100 %) | 75.1 (8.4) | 713 (39.3) | — |
  Cases - 1,145 (63.2 %) | 77.6 (7.9) | 415 (36.2) | — |
  Controls - 668 (36.8 %) | 70.9 (7.7) | 298 (44.6) | — |
Smoking subset - 1,358 (100Â %) | 75.0 (8.2) | 560 (41.2) | 790 (58.2) |
  Cases - 850 (62.6 %) | 77.3 (7.7) | 323 (38.0) | 516 (60.7) |
  Controls - 508 (37.4 %) | 71.2 (7.6) | 237 (46.7) | 274 (53.9) |