Cigarette consumption in platinum mine employees by race and age group
| Race, age group(years) | Cigarette consumption category | Total | ||
|---|---|---|---|---|
| Light (<10),n (%) | Moderate (10–19),n (%) | Heavy (⩾20),n (%) | ||
| n | ||||
| Black | ||||
| <25 | 400 (90.7) | 36 (8.2) | 5 (1.1) | 441 |
| 25–34 | 1899 (89.9) | 199 (9.4) | 14 (0.7) | 2112 |
| 35–44 | 4182 (86.4) | 612 (12.6) | 44 (0.9) | 4838 |
| 45–54 | 1710 (85.6) | 265 (13.3) | 22 (1.1) | 1997 |
| 55–66 | 287 (86.2) | 35 (10.5) | 11 (3.3) | 333 |
| Total | 8478 (87.2) | 1147 (11.8) | 96 (1.0) | 9721 |
| White | ||||
| <25 | 159 (35.4) | 208 (46.3) | 82 (18.3) | 449 |
| 25–34 | 93 (21.5) | 197 (45.6) | 142 (32.9) | 432 |
| 35–44 | 73 (17.3) | 219 (51.8) | 131 (31.0) | 423 |
| 45–54 | 26 (13.9) | 99 (52.9) | 62 (33.2) | 187 |
| 55–66 | 3 (18.8) | 10 (62.5) | 3 (18.8) | 16 |
| Total | 354 (23.5) | 733 (48.6) | 420 (27.9) | 1507 |