Table 4. Frequency distribution of subjects without rhinitis or rhinoconjunctivitis, subjects with rhinitis, and subjects with rhinoconjunctivitis for each class of Atopic Index (0-no allergic sensitizations, 1-one positive skin test, 2-two positive skin tests, 3-three or more positive skin tests). Differences were significant (P < 0.0001, χ2 test).
| Atopic index | No rhinitis, no rhinoconjunctivitis | Rhinitis | Rhinoconjunctivitis |
|---|---|---|---|
| Class 0 (%) | 66.3 | 16.6 | 17.1 |
| Class 1 (%) | 61.7 | 20.4 | 17.9 |
| Class 2 (%) | 57.8 | 19.1 | 23.1 |
| Class 3 (%) | 49.8 | 22.0 | 28.2 |