Associations of refineries, process groups, and work related respiratory symptoms
| Work related symptoms PR (95% CI)5-151 | ||||
|---|---|---|---|---|
| Wheeze | Chest tightness | Shortness of breath | Rhinitis | |
| Refineries: | ||||
| Refinery 1 | 1.0 | 1.0 | 1.0 | 1.0 |
| Refinery 2 | 2.1 (1.3 to 3.2) | 1.6 (1.0 to 2.7) | 1.0 (0.5 to 1.7) | 1.4 (1.0 to 1.8) |
| Refinery 3 | 1.0 (0.6 to 2.0) | 1.0 (0.5 to 2.0) | 1.0 (0.4 to 2.2) | 1.0 (0.6 to 1.5) |
| p Value5-150 | 0.001 | 0.10 | 0.99 | 0.06 |
| Process groups: | ||||
| Office or administration | 1.0 | 1.0 | 1.0 | 1.0 |
| Powerhouse | 0.8 (0.2 to 3.5) | 0.8 (0.2 to 3.7) | 0.4 (0.1 to 3.1) | 0.9 (0.3 to 2.4) |
| Maintenance | 1.7 (0.9 to 3.2) | 1.0 (0.5 to 2.1) | 1.1 (0.5 to 2.5) | 2.0 (1.3 to 3.0) |
| Digestion | 2.2 (1.0 to 4.7) | 1.9 (0.8 to 4.4) | 1.2 (0.4 to 3.7) | 1.3 (0.7 to 2.5) |
| Clarification | 1.6 (0.7 to 3.6) | 1.7 (0.7 to 4.0) | 1.5 (0.5 to 4.2) | 1.8 (1.0 to 3.2) |
| Precipitation | 2.8 (1.3 to 6.2) | 1.7 (0.7 to 4.4) | 2.9 (1.2 to 7.4) | 2.3 (1.3 to 4.2) |
| Calcification or shipping | 2.9 (1.4 to 6.3) | 1.8 (0.7 to 4.4) | 1.0 (0.3 to 3.4) | 1.9 (1.1 to 3.5) |
| Residue | 0.9 (0.1 to 6.7) | 1.9 (0.4 to 8.7) | 3.4 (0.9 to 12.7) | 0.9 (0.2 to 3.9) |
| Descale | 1.9 (0.7 to 5.3) | 1.3 (0.4 to 4.8) | 1.4 (0.3 to 6.6) | 2.0 (1.0 to 4.2) |
| p Value5-150 | 0.11 | 0.65 | 0.24 | 0.02 |
| Atopy (skin prick test) | 1.8 (1.2 to 2.6) | 1.3 (0.8 to 2.1) | 1.0 (0.6 to 1.7) | 1.3 (1.0 to 1.6) |