Table 3 Power calculation (%) for proposed cluster-randomized SMART trial. Shown are degrees of power to detect four levels of incidence reduction under three incidence scenarios
Annual incidence rate (cases/1000 population) | Reduction in malaria incidence | |||
|---|---|---|---|---|
40% | 30% | 20% | 10% | |
Observed in the site: 302 | > 99.9 | > 99.9 | > 99.9 | 89.2 |
30% lower value: 211 | > 99.9 | 99.8 | 97.0 | 59.0 |
30% higher value: 393 | > 99.9 | > 99.9 | > 99.9 | 97.0 |