Table 7 Sample size
Incidence in control group | Incidence in intervention group | Risk ratio | Total sample size needed for analysis of each comparison |
|---|---|---|---|
15% | 18% | 1.20 | 4,936 |
15% | 17% | 1.13 | 10,746 |
15% | 13% | 0.87 | 9,646 |
15% | 12.75% | 0.85 | 7,586 |
15% | 12% | 0.80 | 4,204 |
15% | 11% | 0.73 | 2,316 |