A study compares a new cardiovascular medicine with existing treatment.
Table
| Treatment | Heart attacks per 1000 patients | Serious bleeding events per 1000 patients |
|---|---|---|
| Existing | 70 | 10 |
| New | 45 | 18 |
Assume these rates apply to 20000 comparable patients over the same time.
Which pair gives the expected effect of using the new medicine?
900 fewer heart attacks and 160 more serious bleeding events
500 fewer heart attacks and 360 more serious bleeding events
900 fewer heart attacks and 360 more serious bleeding events
500 fewer heart attacks and 160 more serious bleeding events
44 exam-style questions on Edexcel GCSE Biology 5.4 Non-communicable diseases, covering 5.4.1 Interaction of factors in non-communicable disease, 5.4.2 Lifestyle factors and non-communicable disease, and 5.4.3 Treatments for cardiovascular disease. Each one has a worked solution and a mark scheme showing where the marks go.