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Network analysis for motives in suicide cases: A cross‐sectional study
Author(s) -
Shiratori Yuki,
Tachikawa Hirokazu,
Nemoto Kiyotaka,
Endo Go,
Aiba Miyuki,
Matsui Yutaka,
Asada Takashi
Publication year - 2014
Publication title -
psychiatry and clinical neurosciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.609
H-Index - 74
eISSN - 1440-1819
pISSN - 1323-1316
DOI - 10.1111/pcn.12132
Subject(s) - centrality , betweenness centrality , psychology , depression (economics) , suicide prevention , intervention (counseling) , unemployment , poison control , psychiatry , social psychology , clinical psychology , medicine , medical emergency , economics , mathematics , combinatorics , macroeconomics , economic growth
Aim Suicide victims have various distresses or motives. There are few studies on how these motives toward suicide relate with each other. We used network analyses to extract the structures of correlations among the motives for suicide. Methods We obtained datasets of suicide victims from 2007–2009 in J apan in cooperation with Ibaraki Prefectural Police Headquarters. The data were analyzed by network centrality measures and a structural analysis by block modeling. Results Among the motives, depression and physical illness showed relatively high scores of ‘degree centrality’, whereas depression and unemployment showed relatively high scores of ‘betweenness centrality’. Structural analysis by block modeling resulted in eight blocks. The most important block comprised eight motives, including conflict between parent and child, marital conflict, economic hardship, and overloaded with debt. Conclusion Depression and physical illness were important and priority areas for completed suicides, although these two motives had different influences on suicide behaviors. Furthermore, structural analysis revealed the important role of a block, including some familial and financial motives, which induced hopelessness. Our results suggest that it might be useful to consider the common ways in which motivations for suicide are tied together when suicide intervention is launched from a social model point of view.

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