Correlation analysis results of CSI, clinical scales, and PPT measurements pre-treatment and 1st and 3rd months after treatment
| Variable | CSI | |||
|---|---|---|---|---|
| T0 | T1 | T2 | ||
| VAS | r | 0.109a | 0.316a | 0.332a |
| 0.483 | 0.039 | 0.030 | ||
| HAD-Anxiety | r | 0.586 | 0.518 | 0.583 |
| < 0.001 | < 0.001 | < 0.001 | ||
| HAD-Depression | r | 0.390a | 0.420 | 0.331 |
| 0.009 | 0.005 | 0.030 | ||
| QuickDASH | r | 0.454 | 0.595 | 0.576 |
| < 0.001 | < 0.001 | < 0.001 | ||
| SF36-GH | r | –0.372a | –0.519 | –0.690 |
| 0.013 | < 0.001 | < 0.001 | ||
| Supraspinatus PPTAffected side | r | –0.167 | –0.367 | –0.354a |
| 0.279 | 0.015 | 0.020 | ||
| Supraspinatus PPTUnaffected side | r | –0.272 | –0.498 | –0.328a |
| 0.074 | 0.001 | 0.032 | ||
| Trapezius PPTAffected side | r | –0.211 | –0.363 | –0.291a |
| 0.169 | 0.017 | 0.059 | ||
| Trapezius PPTUnaffected side | r | –0.293 | –0.181 | –0.066a |
| 0.053 | 0.245 | 0.676 | ||
| Infraspinatus PPTAffected side | r | –0.168 | –0.498 | –0.342a |
| 0.275 | 0.001 | 0.025 | ||
| Infraspinatus PPTUnaffected side | r | –0.266 | –0.396 | –0.341a |
| 0.081 | 0.009 | 0.025 | ||
| Forearm PPT | r | –0.156 | –0.388 | –0.259 |
| 0.313 | 0.010 | 0.094 | ||
CSI: central sensitization inventory, VAS: visual analog scale, HAD: hospital anxiety depression, QuickDASH: Quick Disability of Arm, Shoulder and Hand, SF36-GH: Short Form 36 general health, PPT: pressure pain threshold, r: correlation coefficient.
aSpearman’s rho.