Pooled weighted effect size and mean difference
| Random effects model | 95% CI | Fixed effects model | 95% CI | Q statistic, p value | |
|---|---|---|---|---|---|
| *Effect size: standardised mean difference. The mean difference was calculated using the change from pre- to post-treatment UPDRS for the active group. 95% CI, 95% confidence interval. | |||||
| Pooled weighted mean difference (all studies) | 5.90 | 3.36, 8.44 | 4.15 | 2.79, 5.50 | 0.001 |
| Pooled weighted effect size* (all studies) | 0.62 | 0.38, 0.85 | 0.59 | 0.40, 0.78 | 0.11 |
| Pooled weighted effect size* (controlled studies) | 0.60 | 0.24, 0.96 | 0.56 | 0.30, 0.81 | 0.052 |