Characterization of suicidal behaviour with self-organizing maps
Entity
UAM. Departamento de PsiquiatríaPublisher
Hindawi Publishing CorporationDate
2013-07-19Citation
10.1155/2013/136743
Computational and Mathematical Methods in Medicine 2013 (2013): 136743
ISSN
1748-670X (print); 1748-6718 (online)DOI
10.1155/2013/136743Funded by
This work was partially supported by the Spanish Ministry of Science and Innovation under Projects CSD2008-00010, TEC2009-14504-C02-01, and TEC2012-38800-C03-01, the Madrid Regional Government under the S2010/BMD-2422 Project, and PAPIIT-UNAM (Programa de Apoyo a Proyectos de Investigación e Innovación Tecnológica, Universidad Nacional Autónoma de México).Project
Comunidad de Madrid. S2010/BMD-2422/AGESEditor's Version
http://dx.doi.org/10.1155/2013/136743Subjects
Suicidal behavior; Self-organizing maps (SOMs); Mental disorders; Alcoholism; Impulsivity; Childhood abuse; MedicinaRights
Copyright © 2013 José M. Leiva-Murillo et al.Abstract
The study of the variables involved in suicidal behavior is important from a social, medical, and economical point of view. Given
the high number of potential variables of interest, a large population of subjects must be analysed in order to get conclusive results.
In this paper, we describe a method based on self-organizing maps (SOMs) for finding the most relevant variables even when
their relation to suicidal behavior is strongly nonlinear. We have applied the method to a cohort with more than 8,000 subjects
and 600 variables and discovered four groups of variables involved in suicidal behavior. According to the results, there are four
main groups of risk factors that characterize the population of suicide attempters: mental disorders, alcoholism, impulsivity, and
childhood abuse. The identification of specific subpopulations of suicide attempters is consistent with current medical knowledge
and may provide a new avenue of research to improve the management of suicidal cases
Files in this item
Google Scholar:Leiva-Murillo, Jose M.
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López-Castromán, Jorge
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Baca García, Enrique
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Consortium, Eureca
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