Status of centre enrolment at SWIM trial closure
| Centre status | Number |
|---|---|
| Recruitment started | 4 |
| Interested—ready to commence centre-specific approval | 2 |
| Interested—not ready to commence centre-specific approval | 4 |
| Declined—do not use PCA for sickle cell pain | 9 |
| Declined—staff issues, lack of research support, A&E recruitment issues | 3 |
| No response | 5 |
| Total | 27 |