Treatment allocated and treatment received
| Randomized Treatment | ||||
|---|---|---|---|---|
| Hydrogel | Bare Platinum | |||
| No. | % | No. | % | |
| No. of patients randomized | 249 | 250 | ||
| Received coil as allocated | 236 | 94.8 | 246 | 98.4 |
| Crossed over* | 7 | 3.2 | 2 | 0.8 |
| Procedure started but no coil inserted | 2 | 0.8 | 1 | 0.4 |
| Procedure not started | 3 | 1.2 | 1 | 0.4 |
| Consent revoked | 1 | 0.4 | 0 | |
* “Crossed over” in HydroCoil arm means that the patient was allocated HydroCoil but only bare platinum coils were deployed. In the control arm, it means that the patient was allocated bare platinum but some HydroCoil was deployed.