Figure 2. Change in depressive symptoms over time.
Note: Asterisks indicate significant (p<.05) between-group differences in MADRS mean changes from baseline to timepoint indicated, as estimated by a mixed effects general linear model, including treatment group, time, and time by treatment group interaction, controlling for age, sex and baseline scores. Week 1: t(91) = 3.77, p = .0003. Week 3: t(91) = 2.23, p = .03. Week 4: t(91) = 2.50, p = .01. Week 6: t(91) = 2.86, p = .005. Week 8: t(91) = 2.20, p = .03. Week 10: t(91) = 2.05, p = .04. Week 12: t(91) = 2.29, p = .02. Week 14: t(91) = 2.22, p = .03. Week 16: t(91) = 2.65, p = .01. Week 24: t(91) = 3.27, p = .002