Table 3 Lower respiratory diseases diagnosed by a physician at baseline in the unexposed controls, current foundry workers, and ex-foundry workers
From: The prevalence of respiratory symptoms and diseases and declined lung function among foundry workers
|  | Unexposed controls (n = 161) | Current foundry workers (n = 335) | Ex-foundry workers (n = 64) | p-value |
|---|---|---|---|---|
Chronic bronchitis | 3 (1.9%) | 7 (2.1%) | 2 (3.1%) | 0.824 b |
Chronic obstructive pulmonary disease (COPD) | 0 (0%) | 4 (1.2%) | 4 (6.3%) | 0.004*b |
Asthma | 7 (4.3%) | 14 (4.2%) | 5 (7.8%) | 0.402b |
Pleural or lung parenchymal changes caused by asbestos | 1 (0.6%) | 10 (3.0%) | 4 (6.3%) | 0.043*b |
Pleuritis | 1 (0.6%) | 5 (1.5%) | 2 (3.1%) | 0.304b |
Silicosis | 0 (0%) | 1 (0.3%) | 2 (3.1%) | 0.036*b |
Pneumonia | 20 (12.4%) | 36 (10.7%) | 11 (17.2%) | 0.342a |
Sarcoidosis | 1 (1%) | 3 (0.9%) | 0 (0%) | 1.000b |
Mixed dust pneumoconiosis | 0 (0%) | 0 (0%) | 2 (3.1%) | 0.013*b |
Tuberculosis | 1 (0.6%) | 0 (0%) | 0 (0%) | 0.403b |