Demonstration of the determinants of improvement of shoulder PPT by multiple regression analysis
| Shoulder PPT score risea | B | SE | P value | 95% CI | |
|---|---|---|---|---|---|
| Group | 4.442 | 1.466 | 0.003 | 4.732 | 1,479.543 |
| Initial VAS | –1.198 | 0.517 | 0.020 | 0.110 | 0.831 |
| Initial PPT | 1.712 | 0.684 | 0.012 | 1.450 | 21.142 |
| Constant | –4.926 | 4.198 | 0.241 | ||
B: regression coefficient, SE: standard error, CI: confidence interval, PPT: pressure pain threshold (kg/cm2), VAS: visual analogue scale (0–10).
a15% increase from baseline in the 3rd month.