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Hong YC, Chen SJ, Chang YC, Chang CW, Chiang HH. The role of alexithymia in suicide ideation among Taiwanese army military personnel: A serial mediation model investigating the effects of perceived stress and depression. Stress Health 2024; 40:e3405. [PMID: 38660797 DOI: 10.1002/smi.3405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Revised: 12/15/2023] [Accepted: 04/05/2024] [Indexed: 04/26/2024]
Abstract
Maintaining the good mental health of Taiwanese military personnel is crucial, especially in light of incidents such as the Taiwan Strait crisis. Suicide is a leading cause of death among military personnel and alexithymia is a significant risk factor for suicidal ideation. However, the mechanisms linking alexithymia and suicidal ideation in this psychologically burdened population remain poorly understood. In total, 863 voluntary army military personnel from Taiwanese reserve brigades and combined-arms brigades were enroled between May 2020 and February 2021. Structured questionnaires about alexithymia, perceived stress, depression, suicidal ideation, and background characteristics were used. Mediation analyses were conducted to examine the serial mediation roles of perceived stress and depression in the relationship between alexithymia and suicidal ideation. Significant positive correlations were observed between alexithymia, perceived stress, depression, and suicidal ideation in bivariate analyses. Serial mediation analyses revealed that alexithymia significantly predicted higher levels of perceived stress, subsequently leading to depressive symptoms, which were associated with suicidal ideation. Depression served as a significant mediator between alexithymia and suicidal ideation. The strongest mediating effect (71.4%) was observed in the pathway from alexithymia through perceived stress and depression to suicidal ideation. Limitations included the utilization of cross-sectional data and a reliance on retrospective self-report measures. Perceived stress and depression were identified as serial mediators in the association between alexithymia and suicidal ideation. Clinically, it is crucial to prioritise interventions that target emotional regulation skills and assess the presence of alexithymia to effectively reduce suicidal ideation in military personnel.
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Affiliation(s)
- Yu-Chia Hong
- Department of Nursing, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Sy-Jou Chen
- Department of Emergency Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Yue-Cune Chang
- Department of Mathematics, Tamkang University, Taipei, Taiwan
| | - Chun-Wei Chang
- Department of Psychiatry, Fu Jen Catholic University Hospital, New Taipei City, Taiwan
| | - Hui-Hsun Chiang
- School of Nursing, National Defense Medical Center, Taipei, Taiwan
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Guidotti S, Fiduccia A, Pruneti C. Introversion, Alexithymia, and Hostility: A Path Analysis From Personality to Suicidal Ideation Among University Students. Psychol Rep 2024:332941241247526. [PMID: 38623941 DOI: 10.1177/00332941241247526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/17/2024]
Abstract
PURPOSE The aim of the current study was to investigate the relationship between state (i.e., hostility) and trait (i.e., social detachment, alexithymia) psychological constructs associated with suicidal ideation among university students. METHODS A group of 190 university students was consecutively recruited in the period between September 2022 and March 2023. After a clinical interview, a series of psychological tests were administered: the Cattell's 16-Personality Factors Questionnaire (16PF), the Toronto Alexithymia Scale (TAS-20), the Symptom Checklist-90-R (SCL-90-R), and the anamnestic form of the Cognitive Behavioral Assessment (CBA2.0), which contains a specific question regarding the suicidal ideation. RESULTS The analyses demonstrated that alexithymia fully mediated the relationship between a particular aspect of introversion (social detachment or low warmth) and hostility which, in turn, seemed to be a significant predictor of suicidal ideation. CONCLUSIONS The path analysis conducted seemed to highlight the importance of personality traits, such as social detachment and the ability to recognize and express one's internal states, on the mental health of university students in terms of hostility and suicidal ideation. Considering that the reduction of suicide mortality has been prioritized as a global target in the 15-19 age group, identifying the psychological factors associated with it is fundamental.
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Affiliation(s)
- Sara Guidotti
- Clinical Psychology, Clinical Psychophysiology, and Clinical Neuropsychology Labs, Department of Medicine and Surgery, University of Parma, Parma, Italy
| | - Alice Fiduccia
- Clinical Psychology, Clinical Psychophysiology, and Clinical Neuropsychology Labs, Department of Medicine and Surgery, University of Parma, Parma, Italy
| | - Carlo Pruneti
- Clinical Psychology, Clinical Psychophysiology, and Clinical Neuropsychology Labs, Department of Medicine and Surgery, University of Parma, Parma, Italy
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Jin T, Lei Z, Zhang L, Wu Y. Perceived Chronic Social Adversity and Suicidal Ideation Among Chinese College Students: The Moderating Role of Hope. OMEGA-JOURNAL OF DEATH AND DYING 2023; 88:638-652. [PMID: 34605333 DOI: 10.1177/00302228211048960] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
This study aimed to investigate the relations among perceived chronic social adversity, hope and suicidal ideation among Chinese college students. 535 college students completed the Perceived Chronic Social Adversity Questionnaire (PCSAQ), the Suicidal Ideation Scale (SIS), and the Revised Adult Dispositional Hope Scale (RADHS). The results showed that perceived chronic social adversity was positively associated with suicidal ideation, and hope was negatively associated with suicidal ideation. The results also confirmed that hope negatively moderated the relationship between perceived chronic social adversity and suicidal ideation. Further study showed that there was a significant positive relation between perceived chronic social adversity and suicidal ideation under the low hope level, however, there was a non-significant relation between perceived chronic social adversity and suicidal ideation under the high hope level.
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Affiliation(s)
- Tonglin Jin
- College of Psychology, Inner Mongolia Normal University, Hohhot, P.R. China
- Research Center of Psychological Education, Key Research Base of Humanities and Social Science in Inner Mongolia Colleges and Universities, Hohhot, P.R. China
| | - Zeyu Lei
- College of Psychology, Inner Mongolia Normal University, Hohhot, P.R. China
- Research Center of Psychological Education, Key Research Base of Humanities and Social Science in Inner Mongolia Colleges and Universities, Hohhot, P.R. China
| | - Lu Zhang
- College of Psychology, Inner Mongolia Normal University, Hohhot, P.R. China
- Research Center of Psychological Education, Key Research Base of Humanities and Social Science in Inner Mongolia Colleges and Universities, Hohhot, P.R. China
| | - Yuntena Wu
- College of Psychology, Inner Mongolia Normal University, Hohhot, P.R. China
- Research Center of Psychological Education, Key Research Base of Humanities and Social Science in Inner Mongolia Colleges and Universities, Hohhot, P.R. China
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Li X, Wang X, Sun L, Hu Y, Xia L, Wang S, Guo C, Shi Y, Yuan X, Zhang K, Liu H. Associations between childhood maltreatment and suicidal ideation in depressed adolescents: The mediating effect of alexithymia and insomnia. CHILD ABUSE & NEGLECT 2023; 135:105990. [PMID: 36527985 DOI: 10.1016/j.chiabu.2022.105990] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 10/31/2022] [Accepted: 12/07/2022] [Indexed: 06/17/2023]
Abstract
BACKGROUND People with depression appear to experience higher levels of childhood maltreatment (CM) and suicidal behaviour. However, no studies have discussed the factors through which CM influences suicidal ideation (SI) in adolescents with depression. The present study examined the effects of alexithymia and insomnia on the relationship between CM and SI in a population of Chinese adolescents with depression. METHODS A total of 262 adolescents with depression (198 females) completed the Childhood Trauma Questionnaire-Short Form, the Toronto Alexithymia Scale-20, the Insomnia Severity Index, and the Positive and Negative Suicide Ideation. RESULTS With the exception of sexual abuse (SA), four types of CM were associated with SI in depressed individuals. The highest incidence was found for physical neglect (PN) (65.27 %). Alexithymia and insomnia were both positively associated with SI. Externally oriented thinking (EOT) and insomnia had significant mediating effects on the relationship between emotional abuse (EA) and SI. EOT and insomnia also had significant mediating effects on the relationship between physical neglect (PN) and SI. LIMITATIONS The major limitations of this study include the impacts of cross-sectional studies and recall bias on the results. CONCLUSIONS Alexithymia and insomnia have an impact on SI in adolescents with depression who have experienced CM. Therefore, we should be aware of the impact of alexithymia and insomnia on depression patients. Rates of suicide among adolescents with depression should be reduced by identifying targeted measures.
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Affiliation(s)
- Xiaoyue Li
- Department of Psychiatry, Fourth People's Hospital in Wuhu, Wuhu 241002, China; Department of Psychiatry, Chaohu Hospital, Anhui Medical University, Hefei 238000, China
| | - Xixin Wang
- Taizhou Central Hospital (Taizhou University Hospital), Taizhou 318000, China
| | - Liang Sun
- Department of Psychiatry, Chaohu Hospital, Anhui Medical University, Hefei 238000, China; Fuyang Third People's Hospital, Fuyang 236000, China
| | - Yu Hu
- Department of Psychiatry, Chaohu Hospital, Anhui Medical University, Hefei 238000, China
| | - Lei Xia
- Department of Psychiatry, Chaohu Hospital, Anhui Medical University, Hefei 238000, China
| | - Song Wang
- Department of Psychiatry, Chaohu Hospital, Anhui Medical University, Hefei 238000, China; School of Mental Health and Psychological Sciences, Anhui Medical University, China
| | - Chunyan Guo
- Department of Psychiatry, Chaohu Hospital, Anhui Medical University, Hefei 238000, China
| | - Yudong Shi
- Department of Psychiatry, Chaohu Hospital, Anhui Medical University, Hefei 238000, China; School of Mental Health and Psychological Sciences, Anhui Medical University, China
| | - Xiaoping Yuan
- Department of Psychiatry, Chaohu Hospital, Anhui Medical University, Hefei 238000, China; School of Mental Health and Psychological Sciences, Anhui Medical University, China
| | - Kai Zhang
- Department of Psychiatry, Chaohu Hospital, Anhui Medical University, Hefei 238000, China; School of Mental Health and Psychological Sciences, Anhui Medical University, China.
| | - Huanzhong Liu
- Department of Psychiatry, Chaohu Hospital, Anhui Medical University, Hefei 238000, China; School of Mental Health and Psychological Sciences, Anhui Medical University, China.
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Geuzinge R, Visse M, Duyndam J, Vermetten E. Social Embeddedness of Firefighters, Paramedics, Specialized Nurses, Police Officers, and Military Personnel: Systematic Review in Relation to the Risk of Traumatization. Front Psychiatry 2020; 11:496663. [PMID: 33408646 PMCID: PMC7779596 DOI: 10.3389/fpsyt.2020.496663] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2019] [Accepted: 11/20/2020] [Indexed: 11/13/2022] Open
Abstract
Background: Firefighters, paramedics, specialized nurses working in Intensive Care Units (ICUs), Operating Rooms (OR), and Emergency Rooms (ER), police officers and military personnel are more frequently exposed to potentially traumatic events than the general population; they are considered high-risk professionals. To reduce the risk of traumatization it is of great importance to be embedded in a social environment with supportive relationships. Methods: We performed a systematic review (based on the PRISMA-Guidelines) looking for social connections within the environment in which high-risk professionals are embedded (work, home, community), to obtain evidence on the impact of these connections on the risk of traumatization. Additionally, we aim to identify relevant supportive relationships in the professionals' environments. We identified the relevant scientific literature by searching, without time, and language restriction, five electronic bibliographic databases: MEDLINE, PsycINFO, Sociological Abstracts, CINAHL, and Web of Science. These databases were last searched in January 2019. Results: A qualitative analysis of the 89 eligible (out of 9,047 screened) studies shows that for firefighters, paramedics, and emergency nurses social connections in their work environment are predominantly supportive relationships and may protect them against traumatization. In other occupations (OR-nurses, ICU-nurses, police officers), however, social connections at work are not only a source of support but are also a source of stress. For military personnel study results are inconclusive as to whether their social connections at work or at home support them against traumatization. In so far as connections are supportive, their sources vary greatly from one occupational group to another; they differ between work vs. home as well as within work between peers vs. supervisor. Conclusions: Being embedded in a social environment, i.e., having social connections, is important but not always sufficient to protect high-risk professionals against traumatization. For, while these connections may be the antecedents of supportive relationships, they can also be the antecedents of damaging relationships. Additionally, the sources of supportive relationships differ among groups. This suggests that knowledge of how the social structures of the occupational groups differ may increase our understanding of the impact of social connections and relationships, including socialization, on the risk of traumatization of high-risk professionals.
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Affiliation(s)
- Renate Geuzinge
- Humanism and Social Resilience, University of Humanistic Studies, Utrecht, Netherlands
| | - Merel Visse
- Care Ethics, University of Humanistic Studies, Utrecht, Netherlands
| | - Joachim Duyndam
- Humanism and Social Resilience, University of Humanistic Studies, Utrecht, Netherlands
| | - Eric Vermetten
- Department of Psychiatry, Leiden University Medical Center, Leiden, Netherlands
- Ministry of Defense, Military Mental Health Research Center, Utrecht, Netherlands
- ARQ National Psychotrauma Center, Diemen, Netherlands
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Alexithymia and self-harm: A review of nonsuicidal self-injury, suicidal ideation, and suicide attempts. Psychiatry Res 2020; 288:112920. [PMID: 32279008 DOI: 10.1016/j.psychres.2020.112920] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Revised: 03/12/2020] [Accepted: 03/13/2020] [Indexed: 01/08/2023]
Abstract
INTRODUCTION Suicide attempts are a significant global public health concern. Research into non-traditional factors, such as the presence of alexithymia, may shed light on the prediction of suicidal behaviours, which can aid intervention and prevention strategies. To ascertain whether alexithymia is a unique risk factor for suicide attempts, this article reviews the evidence on alexithymia related to suicidal ideation, attempts, and non-suicidal self-injury (NSSI). METHODS A literature search was conducted for original articles examining the general and psychiatric populations. RESULTS There is consistent evidence linking alexithymia with suicidal ideation and NSSI, but inconsistent evidence linking it to suicide attempts. CONCLUSION The relationship between alexithymia and suicidality seems to differ based on whether the research focuses on suicidal ideation, suicide attempts, or NSSI. The relationship between alexithymia and suicidality can be understood within the context of multiple code theory and childhood trauma. Future research should explore the whether alexithymia can reliably distinguish between those with a single attempt and those with multiple suicide attempts as well as alexithymia levels pre- and post-intervention with suicide-related behavior as outcomes in treatment studies.
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Na KS, Cho SE, Hong JP, Lee JY, Chang SM, Jeon HJ, Cho SJ. Association between personality traits and suicidality by age groups in a nationally representative Korean sample. Medicine (Baltimore) 2020; 99:e19161. [PMID: 32311919 PMCID: PMC7220678 DOI: 10.1097/md.0000000000019161] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Suicide is a leading health issue, which substantially contributes to the causes of death worldwide. Personality traits are some of the major risk factors for suicidality. We sought to identify the relationships between personality traits and suicidality by age group.The Big-Five Inventory-10 traits were measured in community-dwelling individuals in a nationally representative sample in the Republic of Korea. Because personality traits are long-standing patterns throughout one's lifetime, suicidality was measured based on lifetime history, rather than in a recent period. To comprehensively examine independent influences of personality traits on suicidality, psychiatric comorbidity and sociodemographic data were adjusted for.A total of 6022 subjects (3714 females and 2308 males) were included. Agreeableness (odds ratio (OR) [95% confidential intervals (CI)] = 0.79 [0.64-0.98]) was negatively associated with suicidal ideation, whereas neuroticism (1.27 [1.05-1.54]) and openness (1.36 [1.11-1.67]) were positively associated with suicidal ideation among young adults. Openness (1.25 [1.10-1.43]) had a positive association, and conscientiousness (0.86 [0.75-0.98]) had a negative association with suicidal ideation among the middle-aged group. Neuroticism is the only influencing factor for suicidal attempts among the young adult (1.88 [1.24-2.86]) and older (1.65 [1.24-2.20]) groups.Given the differential associations between personality traits and suicidality by age groups, future studies are needed to comprehensively identify possible roles of personality in suicide by age.
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Affiliation(s)
- Kyoung-Sae Na
- Department of Psychiatry, Gachon University Gil Medical Center, Incheon
| | - Seo-Eun Cho
- Department of Psychiatry, Gachon University Gil Medical Center, Incheon
| | - Jin Pyo Hong
- Department of Psychiatry, Samsung Medical Center, Sungkyunkwan University College of Medicine
| | - Jun-Young Lee
- Department of Psychiatry and Behavioral Science, College of Medicine, Seoul National University, Boramae Hospital, Seoul
| | - Sung Man Chang
- Department of Psychiatry, Kyungpook National University School of Medicine, Daegu, Republic of Korea
| | - Hong Jin Jeon
- Department of Psychiatry, Samsung Medical Center, Sungkyunkwan University College of Medicine
| | - Seong-Jin Cho
- Department of Psychiatry, Gachon University Gil Medical Center, Incheon
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Hemming L, Taylor P, Haddock G, Shaw J, Pratt D. A systematic review and meta-analysis of the association between alexithymia and suicide ideation and behaviour. J Affect Disord 2019; 254:34-48. [PMID: 31103905 PMCID: PMC6599888 DOI: 10.1016/j.jad.2019.05.013] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 05/03/2019] [Accepted: 05/07/2019] [Indexed: 12/19/2022]
Abstract
BACKGROUND Alexithymia reflects a difficulty with identifying and expressing emotions. This experience has been proposed as having an association with suicide ideation and behaviour. This review aimed to synthesise the evidence to establish the bivariate and multivariate relationships between alexithymia, and its subcomponents, with suicide ideation and behaviour. METHODS Search terms related to alexithymia and suicide ideation and behaviour were searched across nine prominent databases in May 2018. Studies were eligible for inclusion if they reported original empirical quantitative findings from adult samples, used a validated measure of alexithymia, and any measure of suicide ideation or behaviour. RESULTS Thirty-four studies were eligible for inclusion in this review. The review found a large effect size for the relationship between alexithymia and suicide ideation (r = 0.54, 95% CI= 0.40-0.65) and a small effect size for the relationship between alexithymia and suicide behaviour (r = 0.25, 95% CI = 0.16-0.34). LIMITATIONS A high level of heterogeneity was found in the meta-analysis meaning that results should be interpreted with caution. CONCLUSION A positive association was found between alexithymia and suicide ideation and, to a lesser extent, behaviour across a range of clinical and general population samples. This review has potentially important clinical implications, and promotes the need for suicide prevention to focus on emotion regulation skills.
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Affiliation(s)
- Laura Hemming
- Division of Psychology and Mental Health, School of Health Sciences, University of Manchester, UK; Manchester Academic Health Sciences Centre, Manchester, UK.
| | - Peter Taylor
- Division of Psychology and Mental Health, School of Health Sciences, University of Manchester, UK; Manchester Academic Health Sciences Centre, Manchester, UK
| | - Gillian Haddock
- Division of Psychology and Mental Health, School of Health Sciences, University of Manchester, UK; Manchester Academic Health Sciences Centre, Manchester, UK; Greater Manchester Mental Health NHS Foundation Trust, Manchester, UK
| | - Jennifer Shaw
- Division of Psychology and Mental Health, School of Health Sciences, University of Manchester, UK; Manchester Academic Health Sciences Centre, Manchester, UK; Greater Manchester Mental Health NHS Foundation Trust, Manchester, UK
| | - Daniel Pratt
- Division of Psychology and Mental Health, School of Health Sciences, University of Manchester, UK; Manchester Academic Health Sciences Centre, Manchester, UK; Greater Manchester Mental Health NHS Foundation Trust, Manchester, UK
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Davey S, Halberstadt J, Bell E, Collings S. A scoping review of suicidality and alexithymia: The need to consider interoception. J Affect Disord 2018; 238:424-441. [PMID: 29913380 DOI: 10.1016/j.jad.2018.06.027] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 05/07/2018] [Accepted: 06/05/2018] [Indexed: 12/31/2022]
Abstract
BACKGROUND Alexithymia is a problem of emotion regulation and for this reason alone may relate to suicidality. This article investigates the evidence for a direct relationship. It explores the possibility of an additional role for interoception in future research. METHODS A scoping review of peer-reviewed journal articles examining alexithymia and suicidality was undertaken, followed by a critical assessment of the overall state of the evidence base in relation to interoception. RESULTS The review identified 27 journal articles. The evidence base was heterogeneous, involving a variety of clinical and non-clinical samples, and displays mixed findings. The measurement of alexithymia (using the Toronto Alexithymia Scale) and management of confounding variables were identified as problematic in determining its relationship with suicidality. LIMITATIONS The review was limited to published research in the English language. The review findings were not tested and refined by stakeholders. Some of the research studies cited in the critical assessment of interoception were themselves subject to the limitations of the Toronto Alexithymia Scale. CONCLUSION The scoping review identified a collection of articles that were too diverse to permit a definitive answer to the research question. Interoception may provide a fruitful new avenue in understanding the relationship between emotion regulation and suicide.
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Affiliation(s)
- Steven Davey
- Suicide and Mental Health Research Group, University of Otago, PO Box 7343, Newtown, Wellington 6242, New Zealand.
| | | | - Elliot Bell
- Department of Psychological Medicine, University of Otago, Wellington, New Zealand
| | - Sunny Collings
- Suicide and Mental Health Research Group, University of Otago, Wellington, New Zealand
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Su MH, Chen HC, Lu ML, Feng J, Chen IM, Wu CS, Chang SW, Kuo PH. Risk profiles of personality traits for suicidality among mood disorder patients and community controls. Acta Psychiatr Scand 2018; 137:30-38. [PMID: 29141103 DOI: 10.1111/acps.12834] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/23/2017] [Indexed: 01/02/2023]
Abstract
OBJECTIVE To examine the associations between personality traits and suicidal ideation (SI) and attempt (SA) in mood disorder patients and community controls. METHOD We recruited 365 bipolar, 296 major depressive disorder patients, and 315 community controls to assess their lifetime suicidality. Participants filled out self-reported personality questionnaires to collect data of personality traits, including novelty seeking (NS), harm avoidance (HA), extraversion (E), and neuroticism (N). We used logistic regression models adjusted for diagnoses to analyze combinational effects of personality traits on the risk of suicide. Additionally, radar charts display personality profiles for suicidal behaviours by groups. RESULTS All personality traits were associated with the risk of suicidality with various effect size, except for E that showed protective effect. High N or HA had prominent and independent risk effects on SI and SA. Combinations of high N and low E, or high HA and NS were the risk personality profiles for suicidality. Higher N scores further distinguished SA from SI in mood disorder patients. CONCLUSION Introvert personality traits showed independent risk effects on suicidality regardless of diagnosis status. Among high-risk individuals with suicidal thoughts, higher neuroticism tendency is further associated with increased risk of suicide attempt.
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Affiliation(s)
- M-H Su
- Department of Public Health, Institute of Epidemiology and Preventive Medicine, College of Public Health, National Taiwan University, Taipei, Taiwan
| | - H-C Chen
- Department of Psychiatry, Center of Sleep Disorders, National Taiwan University Hospital, Taipei, Taiwan
| | - M-L Lu
- Department of Psychiatry, Wan-Fang Hospital, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - J Feng
- Department of Psychiatry, Far Eastern Memorial Hospital, New Taipei City, Taiwan
| | - I-M Chen
- Department of Psychiatry, National Taiwan University Hospital, Taipei, Taiwan.,Institute of Health Policy and Management, College of Public Health, National Taiwan University, Taipei, Taiwan
| | - C-S Wu
- Department of Psychiatry, Far Eastern Memorial Hospital, New Taipei City, Taiwan
| | - S-W Chang
- Department of Psychiatry, Shin Kong Wu Ho Su Memorial Hospital, Taipei, Taiwan
| | - P-H Kuo
- Department of Public Health, Institute of Epidemiology and Preventive Medicine, College of Public Health, National Taiwan University, Taipei, Taiwan.,Research Center for Genes, Environment and Human Health, National Taiwan University, Taipei, Taiwan
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