Sample sizes in paediatric drug trials
| Sample size (participants (n)) | No of paediatric drug trials | Proportion (%) |
| 0–100 | 538 | 38.7 |
| 101–200 | 264 | 19.0 |
| 201–300 | 144 | 10.4 |
| 301–400 | 90 | 6.5 |
| 401–500 | 54 | 3.9 |
| 501–1000 | 139 | 10.0 |
| >1000 | 151 | 10.9 |
| Unknown | 8 | 0.6 |
| Total | 1388 | 100.0 |