Sex-specifics of ECT outcome

Area of Science:

• Neuroscience
• Psychiatry
• Clinical Medicine

Background:

• Major depressive disorder (MDD) exhibits known sex differences.
• Electroconvulsive therapy (ECT) is a highly effective treatment for severe MDD.
• Understanding sex-specific differences in ECT outcomes can refine clinical guidelines.

Purpose of the Study:

• To investigate sex differences in electroconvulsive therapy (ECT) outcomes for major depressive disorder (MDD).
• To identify predictors of ECT treatment success, considering potential sex-specific factors.

Main Methods:

• Analysis of clinical data from 500 patients with MDD across 20 independent sites (Global ECT-MRI Research Collaboration).
• Assessment of depression severity using validated scales before and after ECT.
• Logistic regression analysis to identify predictors of remission, defined as HAM-D score ≤ 7.

Main Results:

• ECT remission rates were similar between sexes: 48.0% for women and 45.7% for men.
• A shorter duration of the index depressive episode emerged as a significant sex-specific predictor for ECT remission in women.
• Confidence intervals for predictive margins showed overlap between men and women.

Conclusions:

• Electroconvulsive therapy (ECT) demonstrates comparable efficacy for major depressive disorder (MDD) in both women and men.
• Shorter index episode duration is an additional predictor of ECT remission specifically in women.
• Further research is warranted to confirm the overlapping nature of predictive margins for sex-specific ECT outcomes.