Table 3 Work-related and clinical differences
| Â | Chronic pain | Pain-free Control | Between group difference | p-value |
|---|---|---|---|---|
Work-related | Â | Â | Â | Â |
DASH Work-module (0–100) | 28 (23 to 33) | 0 (0 to 0) | 28 (22 to 34) | <.0001 |
Work Ability Index (7–49) | 39.7 (38.4 to 40.9) | 46.1 (45.3 to 46.9) | −6.4 (−8.1 to −4.8) | <.0001 |
 Item 1: Current work ability compared with the lifetime best (0-10) | 7.3 (6.9 to 7.7) | 9.3 (9.0 to 9.6) | −2.0 (−2.6 to −1.5) | <.0001 |
 Item 2: Work ability in relation to the demands of the job (2–10) | 7.6 (7.2 to 8.0) | 9.0 (8.6 to 9.5) | −1.4 (−2.0 to −0.9) | <.0001 |
 Item 3: Number of current diseases diagnosed by a physician (1–7) | 5.6 (5.1 to 6.0) | 6.4 (6.0 to 6.7) | −0.8 (−1.4 to −0.2) | 0.0047 |
 Item 4: Estimated work impairment due to diseases (1–6) | 5.7 (5.5 to 5.9) | 6.0 (6.0 to 6.0) | −0.3 (−0.6 to −0.1) | 0.0003 |
 Item 5: Sick leave during the past year (1–5) | 4.7 (4.5 to 4.9) | 4.9 (4.7 to 5.1) | −0.2 (−0.5 to 0.2) | 0.2682 |
 Item 6: Own prognosis of work ability two years from now (1–7) | 5.8 (5.3 to 6.3) | 7.0 (7.0 to 7.0) | −1.2 (−1.8 to −0.6) | <.0001 |
 Item 7: Mental resources (1–4) | 3.0 (2.8 to 3.2) | 3.5 (3.3 to 3.7) | −0.5 (−0.8 to −0.1) | 0.0036 |
Clinical | Â | Â | Â | Â |
 Self-rated health (1–5) | 3.0 (2.8 to 3.2) | 1.7 (1.4 to 2.0) | 1.3 (1.0 to 1.6) | <.0001 |
 Fear Avoidance (1–4) | 2.6 (2.4 to 2.8) | 1.1 (1.o to 1.1) | 1.5 (1.2 to 1.8) | <.0001 |
 PPT tibialis Anterior (kPa) | 805 (701 to 910) | 1014 (900 to 1130) | −210 (−342 to −78) | 0.0020 |
 PPT extensor Carpi Radialis Brevis (kPa) | 639 (554 to 725) | 918 (824 to 1013) | −279 (−387 to −171) | <.0001 |
 PPT infraspinatus (kPa) | 573 (494 to 652) | 753 (666 to 839) | −180 (−280 to −81) | 0.0004 |