Table 1 WOMAC index and SF-36 Health Survey scores following 6 months of treatment
| Â | Baseline | 4 weeks | 12 weeks | 26 weeks | Â | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Mean | 95% CI | Mean | 95% CI | Mean | 95% CI | Mean | 95% CI | P valuea | |||||
Lower bound | Upper bound | Lower bound | Upper bound | Lower bound | Upper bound | Lower bound | Upper bound | Â | |||||
WOMAC index (0–100) |  |  |  |  |  |  |  |  |  |  |  |  |  |
 Pain | 17.1 (22.2) | 6.1 | 28.1 | 7.9 (12.2) | 1.8 | 13.9 | 5.1 (8.0) | 1.1 | 9.1 | 2.5 (2.9) | 1.0 | 3.9 | P = 0.007 |
 Stiffness | 20.6 (18.5) | 11.4 | 29.9 | 12.6 (16.4) | 4.4 | 20.7 | 8.0 (14.9) | 0.6 | 15.4 | 3.9 (6.7) | 0.5 | 7.2 | P = 0.006 |
 Function | 32.5 (19.1) | 23.0 | 42.0 | 13.4 (15.0) | 6.0 | 20.9 | 10.9 (14.7) | 3.6 | 18.2 | 7.8 (11.4) | 2.1 | 13.4 | P < 0.001 |
SF-36 Health Survey (0–100) |  |  |  |  |  |  |  |  |  |  |  |  |  |
 Physical scale | 49.3 (21.3) | 39.0 | 59.5 | 59.9 (22.3) | 49.2 | 70.7 | 69.6 (19.0) | 60.4 | 78.7 | 75.0 (16.6) | 67.0 | 83.1 | P < 0.001 |
 Mental scale | 59.1 (21.6) | 48.7 | 69.6 | 71.1 (18.5) | 62.2 | 80.0 | 81.4 (12.6) | 75.3 | 87.4 | 83.2 (15.3) | 75.8 | 90.5 | P < 0.001 |