Table 2 Characteristics of occupational lung cancer cases recognized by the KWCWS
From: Silica exposure and work-relatedness evaluation for occupational cancer in Korea
Variables | Classification | Frequency (%) |
|---|---|---|
Age | Less than 40 years | 2 (1.7) |
40–49 years | 9 (7.5) | |
50–59 years | 36 (30.0) | |
60–69 years | 35 (29.2) | |
More than 70 years | 38 (31.7) | |
Sex | Male | 120 (100) |
Female | 0 (0) | |
Smoking history | None | 17 (14.2) |
Less than 20PY | 33 (27.5) | |
More than 20PY | 63 (52.5) | |
Unknown | 7 (5.8) | |
Industries | Mining | 45 (37.5) |
Stone quarrying, processing | 13 (10.8) | |
Foundry work | 10 (8.3) | |
Construction | 13 (10.8) | |
Subway work | 8 (6.7) | |
Painting or paint manufacturing | 9 (7.5) | |
Horse training | 4 (3.3) | |
Briquetting | 4 (3.3) | |
Car repair | 2 (1.7) | |
Fireproof material work | 2 (1.7) | |
Others | 10 (8.3) | |
Pneumoconiosis | Yes | 23 (19.2) |
No | 97 (80.2) | |
Lag time | Less than 10 years | 0 (0) |
10–19 years | 15 (12.5) | |
20–29 years | 20 (16.7) | |
30–39 years | 37 (30.8) | |
More than 40 years | 48 (40.0) |