Table 7.
Validation of the homogeneity and effect size of the primary outcomes.
| Model | N | K | ES (g) |  |
95% CI | Q(df) | I2 |
| Fixed | 34 | 172 | 0.593 | 82.86 | 0.551–0.636 | 193.515(33) | 82.947∗∗ |
| Random | 34 | 172 | 0.650 | 84.05 | 0.542–0.757 |
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