Figure 4.
Forest plot of the effects of traditional Chinese mind–body exercises on depressive symptoms in middle-aged and older adults. The model included 29 studies and 34 effect sizes. SMD, standardized mean difference; CI, confidence interval; I2, heterogeneity statistic. Statistical significance was defined as a 95% confidence interval (95% CI) that did not include zero; k indicates the number of effect sizes rather than the number of independent trials.
