Cited by 753Bipolar Disorder and TreatmentSuicide and Self-Harm StudiesSchizophrenia research and treatment

Decreased risk of suicides and attempts during long‐term lithium treatment: a meta‐analytic review

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Baldessarini, Ross J, Tondo, Leonardo, Davis, Paula, Pompili, Maurizio, Goodwin, Frederick K, Hennen, John·2006·Bipolar Disorders

Abstract

Objectives: To update and extend comparisons of rates of suicides and suicide attempts among patients with major affective disorders with versus without long‐term lithium treatment. Methods: Broad searching yielded 45 studies providing rates of suicidal acts during lithium treatment, including 34 also providing rates without lithium treatment. We scored study quality, tested between‐study variance, and examined suicidal rates on versus off lithium by meta‐analytic methods to determine risk ratios (RRs) and 95% confidence intervals (CI). Results: In 31 studies suitable for meta‐analysis, involving a total of 85,229 person‐years of risk‐exposure, the overall risk of suicides and attempts was five times less among lithium‐treated subjects than among those not treated with lithium (RR = 4.91, 95% CI 3.82–6.31, p < 0.0001). Similar effects were found with other meta‐analytic methods, as well as for completed versus attempted suicide, and for bipolar versus major mood disorder patients. Studies with higher quality ratings, including randomized, controlled trials, involved shorter exposures with somewhat lesser lithium superiority. Omitting one very large study or those involving lithium‐discontinuation had little effect on the results. The incidence‐ratio of attempts‐to‐suicides increased 2.5 times with lithium‐treatment, indicating reduced lethality of suicidal acts. There was no indication of bias toward reporting positive findings, nor were outcomes significantly influenced by publication‐year or study size. Conclusions: Risks of completed and attempted suicide were consistently lower, by approximately 80%, during treatment of bipolar and other major affective disorder patients with lithium for an average of 18 months. These benefits were sustained in randomized as well as open clinical trials.

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Authors
Baldessarini, R. J., Tondo, L., Davis, P., Pompili, M., Goodwin, F. K., & Hennen, J.
Affiliations
  • Harvard University (US)
  • George Washington University (US)
Corresponding author
Baldessarini, Ross J
Venue
Bipolar Disorders
Publisher
Wiley
Published
2006-10
Volume
8
Issue
5p2
Pages
625-639
ISSN
  • 1398-5647 (ISSN-L)
  • 1399-5618
OpenAlex
W2124464240
Cited by
753
References
82
Citations by year
2026: 10 · 2025: 22 · 2024: 25 · 2023: 21 · 2022: 25 · 2021: 28 · 2020: 185 · 2019: 21 · 2018: 26 · 2017: 31 · 2016: 40 · 2015: 39 · 2014: 43 · 2013: 40 · 2012: 36
FWCI
4.83
Type
journal article
Language
en
Open access
Locations
  • Bipolar Disorders (publishedVersion)
  • PubMed (publishedVersion)
  • Digital Access to Scholarship at Harvard (DASH) (Harvard University) (submittedVersion, cc-by)
  • IRIS Research product catalog (Sapienza University of Rome) (submittedVersion)
  • INFM-OAR (INFN Catania) (submittedVersion, other-oa)
Funders
  • Eli Lilly and Company
  • Stanley Medical Research Institute
  • National Alliance for Research on Schizophrenia and Depression
  • Bruce J. Anderson Foundation
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Bipolar Disorder and Treatment
  • Social Sciences › Psychology › Clinical Psychology › Suicide and Self-Harm Studies
  • Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
Keywords
lithium, suicide, suicide attempts, bipolar disorder, major affective disorders, long-term lithium therapy, suicide risk reduction, lithium discontinuation, mood disorders
MeSH terms
Bipolar Disorder, Humans, Risk Factors, Suicide, Suicide, Attempted, Time Factors, Prevalence, Lithium Carbonate

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