Table 5 Standardized mean differences relative to medical care and power
Scenario | SMT Alone | SSM Alone | SSM + SMT | Power | |
|---|---|---|---|---|---|
Average pain intensity & disability over 12 months post-randomization (alpha = 0.05/2) | Chronicity based on LBP impact averaged over months 10–12 (alpha = 0.05) | ||||
Additive | 0.20 | 0.20 | 0.40 | 88% | 93% |
Sub-Additive 1 | 0.25 | 0.25 | 0.35 | 85% | 91% |
Sub-Additive 2 | 0.30 | 0.30 | 0.30 | 89% | 94% |
Sub-Additive 3 | 0.25 | 0.25 | 0.25 | 74% | 81% |
Single effect 1a | 0 | 0.30 | 0.30 | 96% | 98% |
Single effect 1b | 0.30 | 0 | 0.30 | 88% | 94% |
Single effect 2a | 0 | 0.25 | 0.25 | 83% | 91% |
Single effect 2b | 0.25 | 0 | 0.25 | 71% | 80% |