Suicide, attempted suicide, and relapse rates in depression

Area of Science:

• Psychiatry
• Clinical Psychology
• Neuroscience

Background:

• Depression is a significant risk factor for suicidal behavior.
• Predicting suicidal behavior in depressed individuals remains a clinical challenge.
• Comparing treatment efficacy for reducing suicide attempts is crucial.

Purpose of the Study:

• To compare the rates of suicide, attempted suicide, and relapse in 519 depressed patients receiving different treatments.
• To evaluate the effectiveness of electroconvulsive therapy (ECT) versus antidepressant medication in preventing suicidal behavior.
• To assess the predictive value of a depressive diagnosis and a history of suicide attempts on future suicidal behavior.

Main Methods:

• A cohort of 519 patients diagnosed with depression was studied.
• Patients received either electroconvulsive therapy (ECT) or antidepressant medication.
• Suicide attempts, completed suicides, and relapse rates were monitored over a six-month period.

Main Results:

• Suicide attempts were significantly lower in the ECT groups (0.8%) compared to the antidepressant group (4.2%).
• This reduction in suicide attempts with ECT was observed in both patients with and without a prior history of attempts.
• A history of attempted suicide and a depressive diagnosis were both identified as significant predictors of future suicidal behavior.

Conclusions:

• Electroconvulsive therapy (ECT) appears to be more effective than antidepressant medication in reducing suicide attempts among depressed patients.
• Both a history of attempted suicide and a depressive diagnosis are strong predictors of suicidal behavior.
• Treatment choice did not influence relapse rates in this study.