MADRS scores during the trial
The ITT analysis for MADRS scores revealed a significant decrease in the total MADRS score of 10.68 points (34.26% reduction from baseline scores) after 3 weeks, regardless of the trial group (95CI [− 12.92; − 8.44]; MADRS total score as response variable; estimated marginal means for MADRS scores for tDCS and sham stimulation groups.