Table 4 Results for primary outcomes based on WOMAC and SF-36: preintervention (baseline), postintervention (8 weeks) and 6 monthsa
Variables | OAK and control preinterventionb | OAK | Control | Difference in changes between groups | |||||
|---|---|---|---|---|---|---|---|---|---|
| Â | Â | 8 weeks | 6 months | 8 weeks | 6 months | Preintervention to 8 weeks | 95% CI | Preintervention to 6 months | 95% CI |
WOMAC | Â | Â | Â | Â | Â | Â | Â | Â | Â |
   Painc | 7.1 (0) | 5.5 (0.3) | 6.1 (0.3) | 7.0 (0.3) | 6.7 (0.3) | -1.46 | -2.18 to -0.73 | -0.49 | -1.26 to 0.28 |
   Stiffness | 3.6 (0) | 3.1 (0.2) | 3.1 (0.2) | 3.6 (0.1) | 3.4 (0.2) | -0.50 | -0.91 to -0.08 | -0.29 | -0.73 to 0.15 |
   Physical Functionc | 24.1 (0) | 19.1 (0.7) | 19.9 (1) | 24.4 (0.7) | 23.4 (0.9) | -5.55 | -7.38 to -3.31 | -4.35 | -6.20 to -0.91 |
   Totalc | 34.9 (0) | 27.7 (1.0) | 29.2 (1.2) | 34.9 (1) | 33.3 (1.2) | -7.23 | -9.98 to -4.49 | -4.08 | -7.47 to -0.68 |
SF-36 (0 to 100) | Â | Â | Â | Â | Â | Â | Â | Â | Â |
   Physical Functionc | 48.0 (0) | 54.1 (1.4) | 54.2 (1.9) | 48.5 (1.4) | 48.5 (1.9) | 5.61 | 1.84 to 9.37 | 5.67 | 0.40 to 10.93 |
   Role Physicalc | 35.7 (0) | 47.9 (4.0) | 46.0 (4.8) | 30.8 (4.0) | 38.6 (4.8) | 17.06 | 5.90 to 28.21 | 7.37 | -5.93 to 20.67 |
   Body Painc | 46.3 (0) | 51.2 (1.9) | 50.8 (2.1) | 44.0 (1.9) | 44.8 (2.2) | 7.19 | 1.93 to 12.44 | 6.06 | 0.04 to 12.07 |
   General Health | 65.8 (0) | 69.2 (1.3) | 69.6 (1.7) | 67.1 (1.3) | 66.0 (1.7) | 2.11 | -1.45 to 5.67 | 3.59 | -1.19 to 8.37 |
   Vitalityc | 54.7 (0) | 59.0 (1.5) | 60.7 (1.7) | 53.0 (1.5) | 56.0 (1.8) | 6.02 | 1.87 to 10.16 | 4.72 | -0.11 to 9.55 |
   Social Functionc | 73.8 (0) | 83.0 (2.2) | 77.8 (2.6) | 72.3 (2.1) | 72.7 (2.6) | 10.72 | 4.81 to 16.62 | 4.07 | -2.08 to 12.22 |
   Role Emotional | 61.7 (0) | 73.7 (3.9) | 70.8 (4.5) | 68.5 (3.9) | 69.4 (4.5) | 5.18 | -5.64 to 16.00 | 1.35 | -11.06 to13.76 |
   Mental Health | 75.8 (0) | 77.0 (1.3) | 78.5 (1.5) | 74.9 (1.3) | 74.7 (1.5) | 2.08 | -1.42 to 5.58 | 3.85 | -0.21 to 7.91 |