Multivariate logistic regression analysis of the most extensive symptoms in relation to work at different work stations; adjusted OR with 95% CI are presented, controlling for age, gender, smoking habits, and interactions between work at different work stations
| Symptoms | OR (95% CI) |
|---|---|
| Pump stations | |
| Breathlessness when exposed to gases etc | 1.4 (1.1 to 1.9) |
| Soft stools related to work | 1.4 (1.0 to 1.8) |
| Throat irritation | 1.6 (1.05 to 2.4) |
| Unusual tiredness | 1.4 (1.05 to 1.8) |
| Filter units | |
| Soft stools related to work | 1.8 (1.2 to 2.6) |
| Diarrhoea related to work | 2.5 (1.4 to 4.2) |
| Nose irritation | 1.9 (1.3 to 2.7) |
| Cough with phlegm | 1.8 (1.1 to 2.9) |
| Unusual tiredness | 1.4 (1.0 to 1.9) |
| Concentration difficulties | 1.8 (1.1 to 2.9) |
| Sludge handling | |
| Toxic pneumonitis | 2.0 (1.1 to 3.7) |
| Soft stools related to work | 2.3 (1.3 to 3.9) |
| Unusual tiredness | 2.0 (1.2 to 3.2) |
| Covered basins | |
| Breathlessness when exposed to gases etc | 1.0 (0.7 to 1.3) |
| Toxic pneumonitis | 1.1 (0.8 to 1.5) |
| Breathlessness when walking on plain ground | 0.5 (0.3 to 0.8) |
| Throat irritation | 1.0 (0.6 to 1.5) |
| Nose irritation | 1.0 (0.8 to 1.4) |
| Cough with phlegm | 1.1 (0.8 to 1.6) |
| Unusual tiredness | 0.8 (0.6 to 1.1) |
| Concentration difficulties | 1.0 (0.7 to 1.4) |
| Soft stools | 0.8 (0.6 to 1.0) |
| Soft stools related to work | 0.8 (0.6 to 1.1) |
| Diarrhoea related to work | 0.7 (0.5 to 0.99) |