Dental technicians (n=106)† | Control subjects (n=103)† | OR (95% CI)* | p value | |
---|---|---|---|---|
*Odds ratio (95% CI) for dental technicians versus non-exposed subjects adjusted for smoking in two classes, sex, exposure to asbestos in the past, and age by logistic regression analysis. | ||||
†Percentages in parentheses. | ||||
‡In accordance with the ILO classification. | ||||
§Not related to pneumoconiosis. | ||||
Small bilateral opacities | 9 (8.5) | 2 (1.9) | 1.7 (0.2 to 13.5) | 0.6 |
Profusion ≥1/0 | 13 (12.3) | 2 (1.9) | 3.1 (0.2 to 52.2) | 0.4 |
Large opacities | 4 (3.8) | 1 (1) | 3.8 (0.3 to 46.5) | 0.3 |
Pleural involvement | 8 (7.7) | 5 (4.9) | 1.6 (0.3 to 7.5) | 0.6 |
Signs related to pneumoconiosis‡ | 13 (12.3) | 6 (5.8) | 2.4 (0.8 to 7.4) | 0.1 |
Other additive signs§ | 28 (26.4) | 18 (17.5) | 1.8 (0.9 to 3.7) | 0.1 |