Table 1.
Descriptive statistics for the main study variables. Mean (SD).
| Chronic pain (n = 49) | Control (n = 33) | |
|---|---|---|
| Demographics | ||
| Age (years) | 45 (11) | 45 (11) |
| Height (cm) | 179 (7) | 178 (7) |
| Weight (kg) | 90 (16) | 87 (13) |
| Body mass index (kg·m2) | 28 (5) | 28 (5) |
| Proportion of smokers (%) | 41 | 25 |
| Clinical | ||
| Shoulder pain intensity in the previous week (0–10) | 5.6 (2.3) | 0.1 (0.3) |
| Elbow/forearm pain intensity in the previous week (0–10) | 3.9 (2.7) | 0.0 (0.2) |
| Hand/wrist pain intensity in the previous week (0–10) | 3.7 (2.9) | 0.2 (0.6) |
| Pain duration >3 months (%) | 100 | 0 |
| PPT tibialis anterior (kPa) | 805 (205) | 1014 (285) |
| PPT extensor carpi radialis brevis (kPa) | 639 (147) | 918 (201) |
| PPT infraspinatus (kPa) | 573 (138) | 753 (178) |
| Hand grip strength (Kg) | 39 (14) | 51 (10) |
| Work-related | ||
| Weekly working hours | 40 (1) | 39 (6) |
| Duration of slaughterhouse work (years) | 17 (10) | 16 (13) |
| DASH work module (0–100) | 28 (17) | 0 (0) |