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Characteristics of lung cancer cases and controls
| Characteristic | Cases N=4775 (%) |
Controls N=2835 (%) |
|---|---|---|
| Mean Age | 60 | 60 |
| Sex | ||
| Men | 2973 (62.3) | 1896 (66.9) |
| Women | 1802 (37.7) | 939 (33.1) |
| Race | ||
| White | 4251 (89.0) | 2561 (90.0) |
| Black | 493 (10.3) | 266 (9.4) |
| Other | 31 (0.7) | 8 (0.3) |
| Smoking Status | ||
| Current | 2843 (59.5) | 1024 (36.1) |
| Former | 1932 (40.5) | 1811 (63.9) |
| Time to First Cigarette | ||
| >60 minutes | 575 (12.0) | 833 (29.4) |
| 31–60 minutes | 722 (15.1) | 588 (20.7) |
| 1–30 minutes | 3478 (72.8) | 1414 (49.9) |
