Incident rates for clinical outcomes
| Event rate (per 100 child days) | p Value | IRR | 95% CI | ||
|---|---|---|---|---|---|
| Intervention | Control | ||||
| GP/ED visits (n=193) | 0.582 | 0.650 | 0.316 | 1.15 | 0.83 to 1.63 |
| Days off school due to asthma (n=462) | 1.365 | 1.606 | 0.1 | 1.16 | 0.97 to 1.39 |
| Courses of oral steroids (n=156) | 0.411 | 0.676 | 0.008 | 1.53 | 1.11 to 2.11 |
| Hospital admissions (n=20) | 0.0254 | 0.129 | <0.001 | 4.38 | 1.46 to 12.13 |
n=total number of events in study as reported by parents.
Example interpretation: controls are 53% more likely to be prescribed steroids than those in the intervention.
ACQ, Asthma Control Questionnaire; ED, emergency department; GP, general practitioner; IRR, incident rate ratio.