|Results of the meta-analyses taking the between-group standardized mean differences as the effect size|
|Outcome measure||k||d+||95% C. I.||dT- dC|
|Mental health||1||−0.243||−1.235 0.749||−0.115|
k: number of studies for each outcome measure. d+: mean effect size for each outcome. dl and du: lower and upper limits of the 95% confidence interval for the mean effect size in each outcome. dT – dC: difference between the treatment and control within-group means (calculated from Table 3). All of the heterogeneity Q statistics were not statistically significant (p > .05) and all I2 indices were equal to 0%.
Calvo-Muñoz et al.
Calvo-Muñoz et al. BMC Musculoskeletal Disorders 2013 14:55 doi:10.1186/1471-2474-14-55