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Impact of antidepressants on the risk of suicide in patients with depression in real-life conditions: a decision analysis model

Published online by Cambridge University Press:  09 December 2008

A. Cougnard ,
H. Verdoux ,
A. Grolleau ,
Y. Moride ,
B. Begaud  and
M. Tournier
A. Cougnard
Affiliation:
University Victor Segalen Bordeaux 2, INSERM U657, IFR of Public Health, Bordeaux, France
H. Verdoux*
Affiliation:
University Victor Segalen Bordeaux 2, INSERM U657, IFR of Public Health, Bordeaux, France
A. Grolleau
Affiliation:
University Victor Segalen Bordeaux 2, INSERM U657, IFR of Public Health, Bordeaux, France
Y. Moride
Affiliation:
Faculty of Pharmacy, Université de Montréal, Montréal, Canada
B. Begaud
Affiliation:
University Victor Segalen Bordeaux 2, INSERM U657, IFR of Public Health, Bordeaux, France
M. Tournier
Affiliation:
University Victor Segalen Bordeaux 2, INSERM U657, IFR of Public Health, Bordeaux, France
*
*Address for correspondence: Professor H. Verdoux, Hôpital Charles Perrens, 121 rue de la Béchade, 33076Bordeaux cedex, France. (Email: [email protected])
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Abstract

Background

The impact of antidepressant drug treatment (ADT) on the risk of suicide is uncertain. The aim of this study was to determine in a real-life setting whether ADT is associated with an increased or a reduced risk of suicide compared to absence of ADT (no-ADT) in patients with depression.

Method

A decision analysis method was used to estimate the number of suicides prevented or induced by ADT in children and adolescents (10–19 years old), adults (20–64 years old) and the elderly (⩾65 years) diagnosed with major depression. The impact of gender and parasuicide history on the findings was explored within each age group. Sensitivity analyses were used to assess the robustness of the models.

Results

Prescribing ADT to all patients diagnosed with depression would prevent more than one out of three suicide deaths compared to the no-ADT strategy, irrespective of age, gender or parasuicide history. Sensitivity analyses showed that persistence in taking ADT would be the main characteristic influencing the effectiveness of ADT on suicide risk.

Conclusions

Public health decisions that contribute directly or indirectly to reducing the number of patients with depression who are effectively administered ADT may paradoxically induce a rise in the number of suicides.

Keywords

Antidepressantdecision analysisdepressionsuicide
Type
Original Articles
Information
Psychological Medicine , Volume 39 , Issue 8 , August 2009 , pp. 1307 - 1315
Copyright
Copyright © 2008 Cambridge University Press

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