Déborah Ducasse1,2,3, Gwenolé Loas4, Déborah Dassa1, Carla Gramaglia5, Patrizia Zeppegno5,6, Sébastien Guillaume1,2,3,7, Emilie Olié1,2,3,7, Philippe Courtet1,2,3,7. 1. Department of Psychiatric Emergency & Acute Crisis, Lapeyronie Hospital, CHU Montpellier, Montpellier, France. 2. INSERM U1061, Montpellier, France. 3. Fondamental Foundation, Créteil, France. 4. Department of Psychiatry & Laboratory of Psychiatric Research (ULB 266), Cliniques Universitaires de Bruxelles, Université Libre de Bruxelles (ULB), Bruxelles, Belgium. 5. Psychiatry Institute, Dipartimento di Medicina Traslazionale, Università del Piemonte Orientale, Novara, Novara, Italy. 6. SCDU Psichiatria, AOU Maggiore della Carità, Novara, Novara, Italy. 7. University of Montpellier, Montpellier, France.
Abstract
BACKGROUND: Anhedonia is considered a suicide risk factor in patients with major affective disorders. Here, we wanted to quantify the association between anhedonia and current suicidal ideation according to the absence/presence of between-group differences for depressive scores and psychiatric disorders. METHODS: We performed a meta-analysis of data on studies retrieved from Medline, Web of Science, and PsycINFO from 1965 to 2016 using, among others, the terms (suicid* or depression) and anhedonia. RESULTS: We identified 15 observational case-control studies that investigated the anhedonia differences in individuals with and without current (i.e., within the past week, independently of the lifetime suicidality status) suicidal ideation (defined as thoughts of killing oneself). Overall, 657 subjects with and 6,690 subjects without current suicidal ideation could be compared. Anhedonia level was higher in the group with current suicidal ideation than in the group without, with a medium effect size (standardized mean difference = 0.57, z = 5.43, P < 0.001, 95% confidence interval, CI = 0.37-0.79). The association between anhedonia and current suicidal ideation remained significant when controlling for depression and psychiatric disorders. The anhedonia scales used in the selected studies did not allow investigating consummatory and motivational anhedonia separately. CONCLUSION: Our major finding is the robust association between anhedonia and current suicidal ideation, independently of depression. This is highly relevant for the clinicians' daily practice and might help improving suicidal risk detection and the development of new therapeutic strategies for suicide prevention.
BACKGROUND: Anhedonia is considered a suicide risk factor in patients with major affective disorders. Here, we wanted to quantify the association between anhedonia and current suicidal ideation according to the absence/presence of between-group differences for depressive scores and psychiatric disorders. METHODS: We performed a meta-analysis of data on studies retrieved from Medline, Web of Science, and PsycINFO from 1965 to 2016 using, among others, the terms (suicid* or depression) and anhedonia. RESULTS: We identified 15 observational case-control studies that investigated the anhedonia differences in individuals with and without current (i.e., within the past week, independently of the lifetime suicidality status) suicidal ideation (defined as thoughts of killing oneself). Overall, 657 subjects with and 6,690 subjects without current suicidal ideation could be compared. Anhedonia level was higher in the group with current suicidal ideation than in the group without, with a medium effect size (standardized mean difference = 0.57, z = 5.43, P < 0.001, 95% confidence interval, CI = 0.37-0.79). The association between anhedonia and current suicidal ideation remained significant when controlling for depression and psychiatric disorders. The anhedonia scales used in the selected studies did not allow investigating consummatory and motivational anhedonia separately. CONCLUSION: Our major finding is the robust association between anhedonia and current suicidal ideation, independently of depression. This is highly relevant for the clinicians' daily practice and might help improving suicidal risk detection and the development of new therapeutic strategies for suicide prevention.
Authors: Anthony L Vaccarino; Amir H Kalali; Pierre Blier; Susan Gilbert Evans; Nina Engelhardt; Jane A Foster; Benicio N Frey; John H Greist; Kenneth A Kobak; Raymond W Lam; Glenda MacQueen; Roumen Milev; Daniel J Müller; Sagar V Parikh; Franca M Placenza; Sakina J Rizvi; Susan Rotzinger; David V Sheehan; Terrence Sills; Claudio N Soares; Gustavo Turecki; Rudolph Uher; Janet B W Williams; Sidney H Kennedy; Kenneth R Evans Journal: Innov Clin Neurosci Date: 2020-07-01
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