Moderation of clinical outcomes by rapid change in MD
REGRESSION, INTERACTION
Linear regression was performed to predict the improvement in QIDS and MADRS from ∆-MD values, group (ketamine vs. vehicle), and their interaction. Results for all regions are shown in Table Interaction term (group * change in mean diffusivity) statistics and robustness of findings when utilizing clinician-administered (MADRS) vs. self-report (QIDS) outcomes and when including covariates in models.The values provided for 