Associations between occupational exposures, chronic obstructive bronchitis, emphysema, and COPD stratified by sex
| N† | Exposed n (%)‡ | Not exposed n (%)‡ | Adjusted OR(95% CI)§ | |
|---|---|---|---|---|
| *p<0.05. | ||||
| †Number of subjects with chronic bronchitis, emphysema and COPD. | ||||
| ‡Proportion of subjects with specific condition with and without exposure. | ||||
| §Odds ratios (and 95% CI) were adjusted by age, smoking status, and pack years. | ||||
| Women (n = 595) | ||||
| Biological dust | n = 258 | n = 330 | ||
| Chronic obstructive bronchitis | 11 | 9 (3.5) | 2 (0.6) | 5.83 (1.24 to 27.4)* |
| Emphysema | 12 | 10 (3.9) | 2 (0.6) | 7.55 (1.58 to 36.0)* |
| COPD | 18 | 15 (5.8) | 3 (0.9) | 7.43 (2.07 to 26.7)* |
| Mineral dust | n = 115 | n = 473 | ||
| Chronic obstructive bronchitis | 11 | 5 (4.4) | 6 (1.3) | 3.60 (1.06 to 12.3)* |
| Emphysema | 12 | 2 (1.8) | 10 (2.1) | 0.90 (0.19 to 4.34) |
| COPD | 18 | 5 (4.4) | 13 (2.8) | 1.79 (0.60 to 5.29) |
| Gases and fumes | n = 289 | n = 299 | ||
| Chronic obstructive bronchitis | 11 | 9 (3.1) | 2 (0.67) | 4.85 (1.03 to 22.9)* |
| Emphysema | 12 | 7 (2.4) | 5 (1.67) | 1.65 (0.50 to 5.45) |
| COPD | 18 | 12 (4.2) | 6 (2.01) | 2.37 (0.85 to 6.60) |
| Men (n = 637) | ||||
| Biological dust | n = 226 | n = 399 | ||
| Chronic obstructive bronchitis | 11 | 6 (2.7) | 5 (1.3) | 2.02 (0.60 to 6.82) |
| Emphysema | 17 | 9 (4.0) | 8 (2.0) | 1.99 (0.73 to 5.47) |
| COPD | 24 | 11 (4.9) | 13 (3.3) | 1.49 (0.63 to 3.51) |
| Mineral dust | n = 284 | n = 341 | ||
| Chronic obstructive bronchitis | 11 | 4 (1.4) | 7 (2.1) | 0.59 (0.17 to 2.08) |
| Emphysema | 17 | 9 (3.2) | 8 (2.4) | 1.14 (0.42 to 3.11) |
| COPD | 24 | 11 (3.9) | 13 (3.8) | 0.88 (0.37 to 2.06) |
| Gases and fumes | n = 374 | n = 251 | ||
| Chronic obstructive bronchitis | 11 | 8 (2.1) | 3 (1.2) | 1.62 (0.42 to 6.26) |
| Emphysema | 17 | 11 (3.0) | 6 (2.4) | 1.02 (0.36 to 2.90) |
| COPD | 24 | 16 (4.3) | 8 (3.2) | 1.19 (0.49 to 2.92) |