Comparing measured drug adherence for evening medication between two age groups of children with mild asthma treated with inhaled budesonide or placebo for 27 months
| Months | Age 7–9 | n | Age 10–16 | n | p value |
| 3 | 81.8 (78.2–85.4) | 61 | 71.6 (63.2–79.8) | 61 | 0.001 |
| 9 | 62.2 (55.3–69.1) | 59 | 55.2 (47.2–63.1) | 55 | 0.18 |
| 15 | 57.0 (49.6–64.3) | 55 | 53.2 (43.7–62.8) | 46 | 0.53 |
| 21 | 51.9 (42.5–61.3) | 48 | 48.6 (38.1–59.0) | 45 | 0.63 |
| 27 | 53.1 (42.0–64.1) | 32 | 40.1 (28.1–52.1) | 29 | 0.30 |
Mean values are given as percentages (95% CI).