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Acta Psychiatr Scand. 2018 Jan;137(1):30-38. doi: 10.1111/acps.12834. Epub 2017 Nov 15.

Risk profiles of personality traits for suicidality among mood disorder patients and community controls.

Author information

1
Department of Public Health, Institute of Epidemiology and Preventive Medicine, College of Public Health, National Taiwan University, Taipei, Taiwan.
2
Department of Psychiatry, Center of Sleep Disorders, National Taiwan University Hospital, Taipei, Taiwan.
3
Department of Psychiatry, Wan-Fang Hospital, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.
4
Department of Psychiatry, Far Eastern Memorial Hospital, New Taipei City, Taiwan.
5
Department of Psychiatry, National Taiwan University Hospital, Taipei, Taiwan.
6
Institute of Health Policy and Management, College of Public Health, National Taiwan University, Taipei, Taiwan.
7
Department of Psychiatry, Shin Kong Wu Ho Su Memorial Hospital, Taipei, Taiwan.
8
Research Center for Genes, Environment and Human Health, National Taiwan University, Taipei, Taiwan.

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.

KEYWORDS:

bipolar disorder; depression; suicide

PMID:
29141103
DOI:
10.1111/acps.12834
[Indexed for MEDLINE]

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