Electroconvulsive therapy and psychiatric readmission in major depressive disorder - A population-based register study.

Objective: The primary aim was to determine whether electroconvulsive therapy (ECT) is associated with reduced risk of psychiatric readmission in major depressive disorder (MDD).

Methods: This study was based on data from multiple Swedish population-based registries. All adult patients admitted to any Swedish hospital for moderate-to-severe MDD between 2012 and 2018 were included.