Prevalence ratios for chest and eyes/nose symptoms and a positive SPT to fungal α-amylase in relation to exposure categories for fungal α-amylase allergen
| Exposure category | Low | Medium | High |
|---|---|---|---|
| Sex and atopy were confounders in the model. | |||
| α-amylase allergen level (ng/m3) | |||
| Arithmetic means (SD) | 0.7 (0.8) | 10.7 (2.2) | 46.7 (16.6) |
| Number of measurements | 225 | 22 | 13 |
| Chest symptoms | |||
| Prevalence ratio | 1 | 1.7 | 3.0 |
| 95% CI | 0.6 to 4.9 | 1.1 to 8.1 | |
| Number of incident cases | 22 | 5 | 5 |
| Eyes/nose symptoms | |||
| Prevalence ratio | 1 | 1.9 | 1.9 |
| 95% CI | 0.9 to 3.8 | 0.9 to 4.2 | |
| Number of incident cases | 56 | 10 | 7 |
| SPT positive to α-amylase | |||
| Prevalence ratio | 1 | 3.1 | 4.0 |
| 95% CI | 0.6 to 17 | 0.9 to 18 | |
| Number of incident cases | 18 | 2 | 4 |