Epidemiologic considerations in electroconvulsive therapy

Area of Science:

• Psychiatry
• Epidemiology
• Public Health

Background:

• Electroconvulsive therapy (ECT) remains a treatment option for severe mental health conditions.
• Understanding trends in ECT utilization, patient demographics, and outcomes is crucial for clinical practice and health policy.
• Longitudinal data analysis provides insights into treatment evolution over time.

Purpose of the Study:

• To analyze trends in electroconvulsive therapy (ECT) incidence, prevalence, mortality, and length of stay.
• To examine changes in ECT utilization patterns for depression over three decades.
• To identify demographic and diagnostic factors associated with ECT use.

Main Methods:

• Analysis of data from the Monroe County Psychiatric Case Register spanning 1961-1975.
• Grouped data into three 5-year periods for comparative analysis of incidence, prevalence, mortality, and length of stay.
• Statistical examination of demographic characteristics, diagnostic correlates, and mortality rates.

Main Results:

• A substantial decline in the incidence of first ECT series was observed across most age-sex groups from 1961-1965 to 1971-1975.
• Significant decreases in the prevalence of ECT admissions were noted primarily among young female patients.
• Both incidence and prevalence analyses indicated increasing specificity of ECT use for depression cases over time.
• Mortality effects associated with ECT were not pronounced; a lower rate of accidental and circulatory deaths was observed in the ECT group.
• Patients receiving ECT generally had longer hospital stays compared to other depression hospitalizations.

Conclusions:

• ECT utilization has decreased and become more targeted for depression over the studied period.
• While overall incidence declined, prevalence changes varied by demographic group.
• ECT appears to have a neutral to potentially beneficial effect on mortality, with longer hospitalizations being a notable characteristic.