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Ancestry and different rates of suicide and homicide in European countries: A study with population-level data.

ΤίτλοςAncestry and different rates of suicide and homicide in European countries: A study with population-level data.
Publication TypeJournal Article
Year of Publication2018
AuthorsFountoulakis, K. N., & Gonda X.
JournalJ Affect Disord
Volume232
Pagination152-162
Date Published2018 05
ISSN1573-2517
Λέξεις κλειδιάAdult, Chromosomes, Human, Y, Databases, Factual, DNA, Mitochondrial, European Continental Ancestry Group, Female, Genetic Markers, Genetics, Population, Geography, Haplotypes, Homicide, Humans, Male, Suicide, World Health Organization
Abstract

INTRODUCTION: There are large differences in suicide rates across Europe. The current study investigated the relationship of suicide and homicide rates in different countries of Europe with ancestry as it is defined with the haplotype frequencies of Y-DNA and mtDNA.MATERIAL AND METHODS: The mortality data were retrieved from the WHO online database. The genetic data were retrieved from http://www.eupedia.com. The statistical analysis included Forward Stepwise Multiple Linear Regression analysis and Pearson Correlation Coefficient (R).RESULTS: In males, N and R1a Y-DNA haplotypes were positively related to both homicidal and suicidal behaviors while I1 was negatively related. The Q was positively related to the homicidal rate. Overall, 60-75% of the observed variance was explained. L, J and X mtDNA haplogroups were negatively related with suicide in females alone, with 82-85% of the observed variance described.DISCUSSION: The current study should not be considered as a study of genetic markers but rather a study of human ancestry. Its results could mean that research on suicidality has a strong biological but locally restricted component and could be limited by the study population; generalizability of the results at an international level might not be possible. Further research with patient-level data are needed to verify whether these haplotypes could serve as biological markers to identify persons at risk to commit suicide or homicide and whether biologically-determined ancestry could serve as an intermediate grouping method or even as an endophenotype in suicide research.

DOI10.1016/j.jad.2018.02.030
Alternate JournalJ Affect Disord
PubMed ID29494899

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