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Relationship of suicide rates with climate and economic variables in Europe during 2000-2012

KN. Fountoulakis, I. Chatzikosta, K. Pastiadis, P. Zanis, W. Kawohl, AJ. Kerkhof, A. Navickas, C. Höschl, D. Lecic-Tosevski, E. Sorel, E. Rancans, E. Palova, G. Juckel, G. Isacsson, HK. Jagodic, I. Botezat-Antonescu, J. Rybakowski, JM. Azorin, J....

. 2016 ; 15 (-) : 19. [pub] 20160809

Language English Country England, Great Britain

Document type Journal Article

BACKGROUND: It is well known that suicidal rates vary considerably among European countries and the reasons for this are unknown, although several theories have been proposed. The effect of economic variables has been extensively studied but not that of climate. METHODS: Data from 29 European countries covering the years 2000-2012 and concerning male and female standardized suicidal rates (according to WHO), economic variables (according World Bank) and climate variables were gathered. The statistical analysis included cluster and principal component analysis and categorical regression. RESULTS: The derived models explained 62.4 % of the variability of male suicidal rates. Economic variables alone explained 26.9 % and climate variables 37.6 %. For females, the respective figures were 41.7, 11.5 and 28.1 %. Male suicides correlated with high unemployment rate in the frame of high growth rate and high inflation and low GDP per capita, while female suicides correlated negatively with inflation. Both male and female suicides correlated with low temperature. DISCUSSION: The current study reports that the climatic effect (cold climate) is stronger than the economic one, but both are present. It seems that in Europe suicidality follows the climate/temperature cline which interestingly is not from south to north but from south to north-east. This raises concerns that climate change could lead to an increase in suicide rates. The current study is essentially the first successful attempt to explain the differences across countries in Europe; however, it is an observational analysis based on aggregate data and thus there is a lack of control for confounders.

2nd Psychiatric Clinic University Hospital for Active Treatment in Neurology and Psychiatry Sveti Naum Sofia Bulgaria

3rd Department of Psychiatry School of Medicine Aristotle University of Thessaloniki Thessaloniki Greece

Aristotle University of Thessaloniki Thessaloniki Greece

Centre for Epidemiology Surveillance and Health Promotion Rome Italy

Clinic of Psychiatric Faculty of Medicine Vilnius University Vilnius Lithuania

Department of Adult Psychiatry Poznan University of Medical Sciences Poznan Poland

Department of Clinical and Theoretical Mental Health Faculty of Medicine Semmelweis University Budapest Hungary

Department of Clinical Neuroscience Karolinska Institutet Solna Sweden

Department of Clinical Psychology Faculty of Psychology and Education VU University Amsterdam Van der Boechorststraat 1 1081 BT Amsterdam The Netherlands

Department of Meteorology and Climatology School of Geology Aristotle University of Thessaloniki Thessaloniki Greece

Department of Music Studies School of Fine Arts Aristotle University of Thessaloniki Thessaloniki Greece

Department of Neurosciences Mental Health and Sensory Organs Suicide Prevention Center Sant'Andrea Hospital Sapienza University of Rome Rome Italy

Department of Pharmacodynamics MTA SE Semmelweis University Budapest Hungary

Department of Psychiatry and Narcology Riga Stradins University Tvaika Str 2 Riga LV 1005 Latvia

Department of Psychiatry Ioannina School of Medicine Ioannina Greece

Department of Psychiatry Psychotherapy and Psychosomatics Center for Social Psychiatry University Hospital of Psychiatry Zurich Switzerland

Department of Psychiatry Ruhr University Bochum LWL University Hospital Alexandrinenstr 1 44791 Bochum Germany

Department of Psychiatry Sainte Marguerite Hospital 13274 Marseille France

Department of Psychiatry University Hospital Center Zagreb Zagreb Croatia

Department of Psychiatry University Hospital SNP 1 040 66 Košice Slovakia

Department of Psychiatry University of Turku Turku Finland

Division of Biological Psychiatry Department of Psychiatry and Psychotherapy Medical University of Vienna Vienna Austria

Division of Mental Health and Addiction Oslo University Hospital Oslo Norway

East London NHS Trust London E1 4DG UK

Estonian Swedish Mental Health and Suicidology Institute Tallinn Estonia

Faculty of Medicine University of Lisbon Av Prof Egas Moniz 1649 035 Lisbon Portugal

Institute of Behavioral Sciences G De Lisio Pisa Italy

Institute of Mental Health School of Medicine University of Belgrade Belgrade Serbia

Institute of Mental Health WHO Collaborating Centre Palmoticeva 37 11000 Belgrade Serbia

Laboratory for Suicide Research and Prevention National Institute of Psychiatry and Addictions Budapest Hungary

Molecular and Cellular Therapeutics Royal College of Surgeons in Ireland Dublin 2 Ireland

National Institute of Mental Health Klecany Czech Republic

National Mental Health Center and Anti drug Bucharest Romania

Neuropsychopharmacology and Neurochemistry Research Group Hungarian Academy of Sciences Budapest Hungary

NORMENT KG Jebsen Centre for Psychosis Research Institute of Clinical Medicine University of Oslo Oslo Norway

Psychiatric Clinic Clinical Center of Montenegro School of Medicine University of Montenegro Podgorica Montenegro

Psychiatric Hospital Vojnik Celjska Cesta 37 Vojnik Slovenia

Psychiatric Research Unit Mental Health Centre North Zealand University of Copenhagen Dyrehavevej 48 3400 Hillerød Denmark

Psychiatry Unit Department of Clinical and Experimental Medicine University of Pisa Pisa Italy

The George Washington University School of Medicine and School of Public Health Washington DC USA

University Psychiatric Center KU Leuven Louvain Belgium

University Psychiatric Hospital Ljubljana Slovenia

References provided by Crossref.org

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