Table 7 Illustrative sample size calculations; transition from baseline prefrail status; 2 year follow up
To detect relative risk reduction of: | Transition to frail (per group) | Transition to frail/dead/too ill (per group) | Ordinal (robust vs prefrail vs non frail/dead/too ill (per group) |
|---|---|---|---|
20% | 3621 | 815 | 177 |
25% | 2389 | 558 | 117 |
30% | 1576 | 360 | 87 |
40% | 853 | 197 | 55 |
50% | 520 | 123 | 38 |