Prevalence (%) of clusters of symptoms during high and low exposure for both exposed (n=259) and control subjects (n=149)
| Symptom |
High exposure period |
Low exposure period |
| Skin or extremities (⩾3/8): | ||
| Exposed | 12.4 | 14.3 |
| Control | 10.1 | 11.4 |
| Respiratory (⩾3/7): | ||
| Exposed | 19.3 | 14.7 |
| Control | 5.4 | 14.8 |
| Systemic (⩾3/8): | ||
| Exposed | 15.1 | 12.4 |
| Control | 8.1 | 11.4 |
| Eye (⩾2/2): | ||
| Exposed | 10.0 | 5.0 |
| Control | 4.7 | 7.4 |
| CNS (⩾5/14): | ||
| Exposed | 19.7 | 17.4 |
| Control | 8.7 | 17.4 |