Table 1.
Clinical Characteristics of Participants
| Characteristics | Male (n, %) | Female (n, %) |
|---|---|---|
| Age | ||
| 50-60 years | 2506 (35.08%) | 1507 (35.98%) |
| 60-70 years | 3568 (49.94%) | 1585 (37.85%) |
| 70-80 years | 1070 (14.98%) | 1096 (26.17%) |
| Smoking history | ||
| Never smoker | 522 (7.31%) | 1380 (32.95%) |
| Smoker | ||
| Smoking dose ≤ 10 pack-years | 608 (8.51%) | 25 (0.60%) |
| Smoking dose 10-20 pack-years | 683 (9.56%) | 11 (0.26%) |
| Smoking dose 20-40 pack-years | 4358 (61.01%) | 7 (0.17%) |
| smoking dose >40 pack-years | 592 (8.29%) | 3 (0.07%) |
| Passive smoker | 381 (5.33%) | 2762 (65.95%) |
| Kitchen fume contact history | ||
| No | 5355 (74.96%) | 586 (13.99%) |
| Yes | 1789 (25.04%) | 3602 (86.01%) |