Table 6.
Results of sensitivity analysis for skin prick test results. Values are numbers (percentages) positive unless stated otherwise
| Antigen | Experimental group (n=4100) | Control group (n=4906) | ICC | Cluster adjusted odds ratio* (95% CI) |
|---|---|---|---|---|
| House dust mite | 504 (12.3) | 299 (6.1) | 0.04 | 2.0 (1.2 to 3.4) |
| Cat | 347 (8.5) | 182 (3.7) | 0.05 | 2.1 (1.1 to 3.9) |
| Birch pollen | 273 (6.7) | 125 (2.5) | 0.03 | 2.3 (1.3 to 4.1) |
| Mixed northern grasses | 369 (9.0) | 209 (4.3) | 0.06 | 1.5 (0.8 to 2.8) |
| Alternaria | 258 (6.3) | 77 (1.6) | 0.05 | 3.5 (1.6 to 7.7) |
| ≥1 positive | 929 (22.7) | 579 (11.8) | 0.07 | 2.0 (1.1 to 3.4) |
ICC=intraclass correlation coefficient.
*For experimental group versus control group.