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Possible cumulative impact of four secondary prevention treatments in the prevention of cardiovascular diseases.
| Drug therapy | Relative-risk reduction | 2-year event ratio |
| None | - | 8% |
| Aspirin | 25% | 6% |
| B-blockers | 25% | 4.5% |
| Lipid lowering (by 1–5 mmol) | 30% | 3.0% |
| ACE inhibitors | 25% | 2.3% |
Cumulative relative reduction if all four drugs are used is about 75% [see ref. [91]].
Events that were included in this analysis are: cardiovascular death, myocardial infarction or strokes.
