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Respiratory symptoms observed among the exposed and the control group
| Respiratory symptoms | Controls (n = 117) (N, %) | Exposed (n = 197) (N, %) |
|---|---|---|
| Dry/productive cough | 2 1.7 | 11 5.58 |
| Throat irritation | 1 0.85 | 7 3.55 |
| Chest congestion | 1 0.85 | 6 3.04 |
| Nasal catarrh | 1 0.85 | 5 2.53 |
| Dyspnoea | – | 4 2.03 |
| Overall | 5 4.27 | 33 16.7 |
