Within group
Among SS, paired t-tests indicated non-significant reductions in CES-D scores from baseline to week 4 (mean difference = − 3.3000 [95% confidence interval (CI) − 8.4540, 1.8540] Among IC, no significant changes in CES-D scores were observed from baseline to week 4 (mean difference = − 2.8750 [95% CI − 10.8993, 6.1493] 