Cited by 26Suicide and Self-Harm StudiesBipolar Disorder and TreatmentPersonality Disorders and Psychopathology

Suicidal risk and protective factors in major affective disorders: A prospective cohort study of 4307 participants

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Miola, Alessandro, Tondo, Leonardo, Pinna, Marco, Contu, Martina, Baldessarini, Ross J.·2023·Journal of Affective Disorders

Abstract

BACKGROUND: Suicidal behavior is strongly associated with major affective disorders, but there is a need to quantify and compare specific risk and protective factors in bipolar disorder (BD) and major depressive disorder (MDD). METHODS: In 4307 extensively evaluated major affective-disorder participants with BD (n = 1425) or MDD (n = 2882) diagnosed by current international criteria, we compared characteristics among those with versus without suicidal acts from illness-onset through 8.24 years of follow-up. RESULTS: Suicidal acts were identified in 11.4 % of participants; 25.9 % were violent and 6.92 % (0.79 % of all participants) were fatal. Associated risk factors included: diagnosis (BD > MDD), manic/psychotic features in first-episodes, family history of suicide or BD, separation/divorce, early abuse, young at illness-onset, female sex with BD, substance abuse, higher irritable, cyclothymic or dysthymic temperament ratings, greater long-term morbidity, and lower intake functional ratings. Protective factors included marriage, co-occurring anxiety disorder, higher ratings of hyperthymic temperament and depressive first episodes. Based on multivariable logistic regression, five factors remained significantly and independently associated with suicidal acts: BD diagnosis, more time depressed during prospective follow-up, younger at onset, lower functional status at intake, and women > men with BD. LIMITATIONS: Reported findings may or may not apply consistently in other cultures and locations. CONCLUSIONS: Suicidal acts including violent acts and suicides were more prevalent with BD than MDD. Of identified risk (n = 31) and protective factors (n = 4), several differed with diagnosis. Their clinical recognition should contribute to improved prediction and prevention of suicide in major affective disorders.

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  1. American Psychiatric Association (APA), 2022. Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition, Text Revision (DSM-5-TR). American Psychiatric Publishing, Arlington VA. http://refhub.elsevier.com/S0165-0327(2300778-4/rf0025)
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Authors
Miola, A., Tondo, L., Pinna, M., Contu, M., & Baldessarini, R. J.
Affiliations
  • University of Padua (IT)
  • Harvard University (US)
  • University of Cagliari (IT)
Corresponding author
Miola, Alessandro
Venue
Journal of Affective Disorders
Publisher
Elsevier BV
Published
2023-10
Volume
338
Pages
189-198
ISSN
0165-0327 (ISSN-L)
OpenAlex
W4379879760
Cited by
26
References
95
Citations by year
2026: 11 · 2025: 7 · 2024: 7 · 2023: 1
FWCI
7.55
Type
journal article
Language
en
Open access
Locations
  • Journal of Affective Disorders (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Padua Research Archive (University of Padova) (submittedVersion, cc-by)
Funders
  • Bruce J Anderson Foundation
  • Aretaeus Foundation of Rome
Topics
  • Social Sciences › Psychology › Clinical Psychology › Suicide and Self-Harm Studies
  • Health Sciences › Medicine › Psychiatry and Mental health › Bipolar Disorder and Treatment
  • Social Sciences › Psychology › Clinical Psychology › Personality Disorders and Psychopathology
Keywords
suicidal behavior, bipolar disorder, major depressive disorder, suicide risk factors, protective factors, violent suicide, suicide prevention, manic episodes, family history of suicide, temperament, functional status, sex differences, substance abuse
MeSH terms
Major Depressive Disorder, Female, Humans, Male, Prospective Studies, Puerperal Disorders, Risk Factors, Suicide, Temperament, Suicidal Ideation, Protective Factors

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