Table 6.
Differences in mean change in secondary outcome scores at 24 months
| Difference* | P value | ||
|---|---|---|---|
| Mean (SE) | 95% CI | ||
| WOMAC physical function | |||
| Exercise | −3.64 (1.21) | −6.01 to −1.27 | 0.003 |
| Diet | −2.84 (1.48) | −5.88 to 0.19 | 0.065 |
| WOMAC stiffness | |||
| Exercise | −0.35 (0.16) | −0.66 to −0.03 | 0.030 |
| Diet | −0.16 (0.17) | −0.50 to 0.19 | 0.365 |
| HADS anxiety | |||
| Exercise | −0.26 (0.37) | −1.02 to 0.51 | 0.496 |
| Diet | 0.09 (0.35) | −0.62 to 0.79 | 0.807 |
| HADS depression | |||
| Exercise | 0.15 (0.37) | −0.62 to 0.92 | 0.693 |
| Diet | −0.67 (0.32) | −1.30 to −0.04 | 0.037 |
| SF-36: bodily pain† | |||
| Exercise | 5.62 (2.35) | 0.99 to 10.25 | 0.018 |
| Diet | 0.94 (2.83) | −4.89 to 6.78 | 0.742 |
| SF-36: physical function† | |||
| Exercise | 5.32 (2.04) | 1.30 to 9.33 | 0.010 |
| Diet | 3.93 (2.68) | −1.64 to 9.49 | 0.157 |
*Analyses included age, sex, BMI, and baseline outcome of interest as covariates plus indicators for each intervention.
†Positive values reflect improvement.