Mean scores for the VAS immediately after each treatment session
| VAS | DN mean (SD) | PNE mean (SD) | P value* |
| 1st session | 3.1 (2.9) | 3.5 (2.6) | 0.459 |
| 2nd session | 3.1 (2.8) | 3.1 (2.6) | 0.968 |
| 3rd session | 2.9 (2.6) | 3.3 (3.2) | 0.419 |
| 4th session | 2.2 (2.7) | 2.4 (2.6) | 0.792 |
*P value after independent t-test.
DN, dry needling; PNE, percutaneous needle electrolysis; VAS, visual analogue scale (0 corresponds to absence of pain; 10, maximum tolerable pain).