Citation

Hayashi N, Igarashi M, Imai A, Yoshizawa Y, Asamura K, Ishikawa Y, Tokunaga T, Ishimoto K, Tatebayashi Y, Harima H, Kumagai N, Ishii H, Okazaki Y. PLoS One 2017; 12(4): e0176565.

Affiliation

Michinoo Hospital, Nagasaki, Japan.

Copyright

(Copyright © 2017, Public Library of Science)

DOI

10.1371/journal.pone.0176565

PMID

28445517

Abstract

BACKGROUND: Suicidal behavior (SB) is a major, worldwide health concern. To date there is limited understanding of the associated motivational aspects which accompany this self-initiated conduct. AIMS: To develop a method for identifying motivational features associated with SB by studying admitted psychiatric patients, and to examine their clinical relevance.

METHODS: By performing a factor analytic study using data obtained from a patient sample exhibiting high suicidality and a variety of SB methods, Motivations for SB Scale (MSBS) was constructed to measure the features. Data included assessments of DSM-IV psychiatric and personality disorders, suicide intent, depressive symptomatology, overt aggression, recent life events (RLEs) and methods of SB, collated from structured interviews. Association of identified features with clinical variables was examined by correlation analyses and MANCOVA.

RESULTS: Factor analyses elicited a 4-factor solution composed of Interpersonal-testing (IT), Interpersonal-change (IC), Self-renunciation (SR) and Self-sustenance (SS). These factors were classified according to two distinctions, namely interpersonal vs. intra-personal directedness, and the level of assumed influence by SB or the relationship to prevailing emotions. Analyses revealed meaningful links between patient features and clinical variables. Interpersonal-motivations (IT and IC) were associated with overt aggression, low suicidality and RLE discord or conflict, while SR was associated with depression, high suicidality and RLE separation or death. Borderline personality disorder showed association with IC and SS. When self-strangulation was set as a reference SB method, self-cutting and overdose-taking were linked to IT and SS, respectively.

CONCLUSIONS: The factors extracted in this study largely corresponded to factors from previous studies, implying that they may be useful in a wider clinical context. The association of these features with SB-related factors suggests that they constitute an integral part of the process leading to SB. These results provide a base for further research into clinical strategies for patient management and therapy.

Language: en