Table 1.
Clinical and demographic characteristics
| Variables | Sample 1 (n = 156) | Sample 2 (n = 51) | p value |
|---|---|---|---|
| Sex (female) a | 106 (67.9%) | 39 (76.5%) | 0.249 |
| Smoking (no) a | 145 (92.9%) | 50 (98%) | 0.157 |
| Dominance (right) a | 144 (92.3%) | 45 (88.2%) | 0.370 |
| Age (years) b | 35.16 (13.23) | 35.41 (8.29) | 0.899 |
| Weight (kg) b | 69.94 (15.60) | 68.51 (14.26) | 0.563 |
| Height (m) b | 1.65 (0.08) | 1.64 (0.07) | 0.601 |
| Body mass index (kg/m2) b | 25.41 (4.59) | 25.26 (4.92) | 0.841 |
| Pain duration (months) b | 50.73 (58.51) | 59.07 (51.24) | 0.364 |
| NPRS at rest (score) b | 4.46 (2.41) | 4.92 (2.19) | 0.228 |
| NPRS after movements (score) b | 5.54 (2.11) | 5.72 (2.35) | 0.607 |
NPRS: Numerical Pain Rating Scale. a values shown as number (percentage); b values shown as mean (standard deviation). No significant difference (chi-square, Fisher’s exact or t test for independent samples, p value < 0.05)