Comparison of the patients at the start and after six years
| Baseline | Follow up | p | |
|---|---|---|---|
| *Mean (SD); †best; ‡psychological general wellbeing index.3 | |||
| Pain scale* (1†–100) | 57.4 (19.9) | 63.2 (28.4) | 0.304 |
| Regional pain score* (1†–105) | 39.8 (16.7) | 50.7 (24.7) | 0.002 |
| Sleep quality* (1†–10) | 4.8 (2.1) | 4.4 (2.5) | 0.487 |
| Morning stiffness* (min) | 75.6 (76.1) | 72 (53.5) | 0.788 |
| Number of analgesic drugs (past week)* | 8.5 (12.7) | 8.9 (10.4) | 0.840 |
| Patients' evaluation of health* (1–10†) | 4.9 (1.6) | 5.2 (2.4) | 0.502 |
| Functional limitations questionnaire* (0†–30) | 26.0 (6.5) | 24.9 (8.3) | 0.379 |
| PGWB‡ (0–110†) | 50.5 (19.0) | 56.5 (18.8) | 0.079 |
| Anxiety scale | 12.5 (5.8) | 12.8 (4.8) | 0.725 |
| Depression scale | 9.1 (3.4) | 9.7 (3.3) | 0.384 |
| Self control | 8.4 (4.7) | 10.2 (3.6) | 0.007 |
| General health | 5.5 (2.0) | 6.6 (3.0) | 0.042 |
| Vitality | 7.3 (4.0) | 8.9 (4.0) | 0.022 |