Table 2. Change on NPS(0–10) during CPM-task and B-PCP:S score.
Data area presented as median and interquartile (Q)25-75, mean (SD) and Δ-value (n = 40).
| Secondary outcomes | ||||||
|---|---|---|---|---|---|---|
| Groups | Median (Q)25-75 | Mean (SD) | Δ-value | Z | P | P* |
| B vs. A | B vs. A | (B minus A) | ||||
| Change on NPS (0–10) during CPM-task | ||||||
| a-tDCS (n = 20) | -2.5(-5; 1) vs. 2 (-4; 2) | -2.63 (1.36) vs. -1.80 (2.04) | -0.8 (1.89) | -2.40 | 0.01 | 0.021 |
| s- tDCS (n = 20) | -1.5 (-5.67; 3) vs. -2 (-4; 1) | -1.30 (2.38) vs.-1.95 (1.31) | 0.65 (1.77) | |||
| Assessment of the disability related to pain by the B-PCP:S score at follow-up end | ||||||
| a-tDCS (n = 20) | 16 (10.50; 28.50) vs. 57(46.50; 67.50) | 17.71(13.0) vs. 60.78(11.39) | - 43.07 (17.72) | -2.36 | 0.01 | 0.024 |
| s- tDCS (n = 20) | 27 (20.5; 33.25) vs. 58 (48; 68) | 27.13(14.33) vs. 60.58 (14.96) | - 33.35 (16.41) | |||
Wilcoxon-Mann Whitney test. Δ-B-PCP:S score (at baseline and the end of follow-up); Δ-CPM-task (at baseline and after intervention). The baseline value is indicated by (A) and after intervention or at the follow-up end (B).
*P-value adjusted by multiple comparisons by Bonferroni Test considering the three secondary outcomes (Δ-value CPM-task; Δ-value B-PCP:S score; analgesic consumption; after the adjustment all P values were <0.05).