Table III.
Study power according to different assumptions of the proportion of patients screened in the intervention group using a 2-sided significance level of .05
| Population | Screened rate | 85% | 87% | 89% |
|---|---|---|---|---|
| All aged ≥65 y | Intervention group AF incidence rate | 1.81% | 1.82% | 1.83% |
| Power | 0.80 | 0.81 | 0.83 | |
| Aged ≥65 y without prior AF diagnosis | Intervention group AF incidence rate | 2.08% | 2.09% | 2.10% |
| Power | 0.80 | 0.82 | 0.83 |