Changes in score on depression scales from baseline in MDD patients.

aOverall and between-group P values were obtained from linear mixed-effects model analysis and student t-test, respectively. MDD, major depressive disorder; n-EA, noninvasive electroacupuncture; DCEAS, dense cranial electroacupuncture stimulation; 95% CI, 95% confidence interval; HAMD-17, 17-item Hamilton Rating Scale for Depression; CGI-S, Clinical Global Impression-Severity; SDS, Self-rating Depression Scale.