Outcome | Minimal clinically important difference | Expected standard deviation | Alpha | Sample size | Power | Reference |
---|---|---|---|---|---|---|
δ | σ | α | n | 1−β | ||
Functional impairment (WSAS) | 4.5 | 10 | 5 | 166 | 82 | Phillips et. al. [19] |
Quality of life (SF-36—mental component) | 5 | 11 | 5 | 166 | 83 | Rollman et al. [20] |
Global functioning (GAF) | 4 | 8.5 | 5 | 166 | 85 | Jørgensen et al. [21] |