Predicted power of study for main outcome (hospitalisation rate) in Merseyside and selected subdistricts
| Area | Population (children <5 years) | Assumed reduction in rotavirus hospitalisation rate | ||||
|---|---|---|---|---|---|---|
| 25% | 30% | 40% | 50% | 75% | ||
| Liverpool | 27 000 | 0.22 | 0.31 | 0.56 | 0.82 | 1 |
| Liverpool and Sefton | 41 000 | 0.34 | 0.48 | 0.78 | 0.96 | 1 |
| Liverpool, Sefton and Knowsley | 50 000 | 0.41 | 0.58 | 0.87 | 0.99 | 1 |
| Merseyside | 80 000 | 0.63 | 0.8 | 0.98 | 1 | 1 |