Descriptions of changes in knowledge and behavioural scores
| T0 | T1 | T2 | T3 | |||||||||
| n | Median | IQR | n | Median | IQR | n | Median | IQR | n | Median | IQR | |
| Knowledge score (range 0–7) | ||||||||||||
| Intervention 1 | 41 | 1 | 1.5–1 | 41 | 6 | 7–2 | 40 | 4 | 6–1 | 39 | 5 | 7–2 |
| Intervention 2 | 46 | 1 | 1–0 | 46 | 1 | 2–1 | 41 | 1 | 4–1 | 40 | 2 | 5–1 |
| Control | 40 | 1 | 2–1 | 40 | 1 | 2–1 | 35 | 1 | 2–1 | 33 | 2 | 3–1 |
| Behavioural score (range 0–10) | ||||||||||||
| Intervention 1 | 41 | 6 | 7–6 | 41 | 7 | 7–6 | 39 | 7 | 7–6 | 38 | 7 | 8–6 |
| Intervention 2 | 45 | 6 | 7–5 | 46 | 6 | 7–5 | 41 | 6 | 7–5 | 40 | 6 | 7–6 |
| Control | 38 | 6 | 7–5 | 39 | 6 | 7–6 | 35 | 7 | 7–6 | 33 | 6 | 7–6 |