Cited by 56Bipolar Disorder and TreatmentSchizophrenia research and treatmentTreatment of Major Depression

A reduced risk of stroke with lithium exposure in bipolar disorder: a population‐based retrospective cohort study

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Lan, Chen‐Chia, Liu, Chia‐Chien, Lin, Ching‐Heng, Lan, Tzuo‐Yun, McInnis, Melvin G, Chan, Chin‐Hong, Lan, Tsuo‐Hung·2015·Bipolar Disorders

Abstract

Objectives: The risk of stroke is increased in patients with bipolar disorder. Lithium exhibits neuroprotective effects but the association between lithium use and the risk of stroke is unknown. Methods: A population‐based retrospective cohort study was conducted by utilizing the National Health Insurance Research Database in Taiwan. Subjects who had first been diagnosed with bipolar disorder between 2001 and 2006 were identified. A propensity score ( PS ) for receiving lithium was calculated with variables of age, gender, and comorbidities. The patients with bipolar disorder receiving lithium within the period from diagnosis through to December 2011 were designated as the lithium group (n = 635). A 1:2 ratio was used to select PS ‐matched subjects with bipolar disorder without lithium use (n = 1,250). Multivariate Cox proportional hazards regression models were used to explore the association, rather than causal inference, of lithium exposure and the risk of stroke. Results: Of the 1,885 subjects, 86 (4.6%) experienced stroke, including 2.8% of the lithium group and 5.4% of the non‐lithium group. Lithium use was associated with a significantly reduced risk of stroke [hazard ratio ( HR ) = 0.39, 95% confidence interval ( CI ): 0.22–0.68]. Reduced risks of stroke were also associated with the highest cumulative lithium dose [≥720 defined daily dose ( DDD ), HR = 0.25, 95% CI : 0.10–0.59], the longest cumulative exposure period (≥720 days, HR = 0.20, 95% CI : 0.06–0.64), and the highest exposure rate (≥2 DDD /day, HR = 0.39, 95% CI : 0.21–0.70). Conclusions: Lithium use was significantly related to a reduced risk of stroke in patients with bipolar disorder.

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  1. [25]25. Dollery CM, Libby P. Atherosclerosis and proteinase acti- vation. Cardiovasc Res 2006; 69: 625-635.
  2. [39]39. Franchi C, Sequi M, Tettamanti M et al. Antipsy- chotics prescription and cerebrovascular events in Ital- ian older persons. J Clin Psychopharmacol 2013; 33: 542-545.

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Authors
Lan, C., Liu, C., Lin, C., Lan, T., McInnis, M. G., Chan, C., & Lan, T.
Affiliations
  • National Yang Ming University (TW)
  • National Yang Ming University Hospital (TW)
  • Taichung Veterans General Hospital (TW)
  • National Health Research Institutes (TW)
  • University of Michigan (US)
Corresponding author
Lan, Tsuo‐Hung
Venue
Bipolar Disorders
Publisher
Wiley
Published
2015-09-23
Volume
17
Issue
7
Pages
705-714
ISSN
  • 1398-5647 (ISSN-L)
  • 1399-5618
OpenAlex
W2114651468
Cited by
56
References
44
Citations by year
2026: 4 · 2025: 3 · 2024: 5 · 2023: 3 · 2022: 7 · 2021: 12 · 2020: 2 · 2019: 7 · 2018: 6 · 2017: 4 · 2016: 3
FWCI
3.51
Type
journal article
Language
en
Open access
Locations
  • Bipolar Disorders (publishedVersion)
  • PubMed (publishedVersion)
  • Deep Blue (University of Michigan) (submittedVersion)
Funders
Taichung Veterans General Hospital, Taichung, Taiwan (TCVGH-101-1102)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Bipolar Disorder and Treatment
  • Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
  • Health Sciences › Medicine › Pharmacology › Treatment of Major Depression
Keywords
lithium, bipolar disorder, stroke risk, neuroprotection, antipsychotic safety, propensity score matching
MeSH terms
Adult, Bipolar Disorder, Female, Humans, Male, Middle Aged, Psychotropic Drugs, Retrospective Studies, Taiwan, Cohort Studies, Incidence, Proportional Hazards Models, Databases, Factual, Lithium Compounds, Neuroprotective Agents, Stroke

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