Risk of recurrent ischaemic stroke and haemorrhagic complications in the ProFESS trial
| Events on aspirin and ER-DP | Events on clopidogrel | HR (95% CI) | |
| Risk of recurrent ischaemic stroke | 916 (9.0%) | 898 (8.8%) | 1.01 (0.92 to 1.11) |
| Major haemorrhage | 419 (4.1%) | 365 (3.6%) | 1.15 (1.00 to 1.32) |
| Intracranial haemorrhage | 147 (1.4%) | 103 (1.0%) | 1.42 (1.11 to 1.83) |
Adapted from Sacco et al.1
ER-DP, extended-release dipyridamole; PRoFESS, Prevention Regimen for Effectively Avoiding Second Strokes.