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Metaregression of synchronous and asynchronous interventions on depression outcome, analyzed using standardized effect size.
| Standardized effect size | Coefficient | 95% CI | P value |
| Asynchronous | −0.69 | −1.70 to 0.32 | .12 |
| Constant | 0.80 | −0.19 to 1.79 | .08 |
