Table 3 Power Calculation for Survival Analyses*
| Â | Proposed study population | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Â | 350 | Â | Â | Â | 400 | Â | Â | Â | |
| Â | % exposed | 10% | 20% | 30% | 40% | 10% | 20% | 30% | 40% |
Hazard ratio | 1.5 | 0.31 | 0.59 | 0.74 | 0.8 | 0.37 | 0.66 | 0.8 | 0.85 |
| Â | 2 | 0.79 | 0.98 | 0.99 | 0.99 | 0.86 | 0.99 | 0.99 | 0.99 |
| Â | 2.5 | 0.98 | 0.99 | 0.99 | 1 | 0.99 | 0.99 | 1 | 1 |