Table 1 Results of four hypothetical placebo-controlled (1–4) and two active treatment-controlled (5 and 6) studies: number of events/number of patients in each group.
From: Pooling, meta-analysis, and the evaluation of drug safety
Study | New drug | Placebo-controls | Active-treatment controls | Relative Risk |
|---|---|---|---|---|
1 | 2/60 | 2/60 | – | 1.0 |
2 | 9/400 | 5/400 | – | 1.8 |
3 | 10/500 | 5/500 | – | 2.0 |
4 | 13/500 | 7/500 | 1.6 | |
5 | 5/1000 | – | 2/1000 | 2.5 |
6 | 6/1000 | – | 3/1000 | 2.0 |