Table 4 Assumptions for sample size calculations
Group | Amount of massage (weekly dose) | Proportion with clinically relevant improvement on NDI (at least 5 point improvement) | Proportion with clinically relevant improvement on Bothersomeness score (≥ 30% improvement) |
|---|---|---|---|
1 | Waitlist | 0.07 | 0.10 |
2 | 60 min 1×/week (60 min) | 0.35 | 0.48 |
3 | 30 min 2×/week (60 min) | 0.40 | 0.55 |
4 | 60 min 2×/week (120 min) | 0.55 | 0.65 |
5 | 30 min 3×/week (90 min) | 0.60 | 0.70 |
6 | 60 min 3×/week (180 min) | 0.70 | 0.80 |