CAPS secondary trial analyses: proportions and OR (95% CI) for symptom outcomes (n=476)
| Intervention n=260 | Control n=216 | Intervention versus control | P value | |
| Cough, n (%) | 30 (7.7%) | 18 (8.3%) | 0.92 (0.47 to 1.78) | 0.797 |
| Current wheeze, n (%) | 19 (7.3%) | 17 (7.9%) | 0.92 (0.47 to 1.82) | 0.817 |
| Severe asthma, n (%) | 11 (4.2%) | 10 (4.6%) | 0.91 (0.38 to 2.19) | 0.833 |
| Shortness of breath, n (%) | 13 (5.0%) | 14 (6.5%) | 0.75 (0.34 to 1.63) | 0.471 |
| Any respiratory symptom, n (%) | 37 (14.2%) | 40 (18.5%) | 0.72 (0.44 to 1.18) | 0.193 |