Related Experiment Video
Updated: Jan 12, 2026
A Middle Cerebral Artery Occlusion Technique for Inducing Post-stroke Depression in Rats
Published on: May 22, 2019
Risk of Stroke in Patients With Schizophrenia, Bipolar Disorder, and Major Depressive Disorder: A Cohort Study of
Mao-Hsuan Huang1,2,3, Chih-Ming Cheng2,3,4, Ju-Wei Hsu2,4
1Department of Psychiatry, General Cheng Hsin Hospital, Taipei, Taiwan.
Insights
Individuals with schizophrenia, bipolar disorder, and major depressive disorder face higher stroke risks. Integrated vascular risk monitoring in psychiatric care is crucial for these patients.
Area of Science:
- Neuroscience
- Psychiatry
- Cardiovascular Medicine
Background:
- Major psychiatric disorders like schizophrenia, bipolar disorder, and major depressive disorder are linked to increased stroke risk.
- Limited research directly compares stroke risk across these conditions within a unified cohort, considering stroke subtypes and confounders.
Purpose of the Study:
- To compare stroke risk across schizophrenia, bipolar disorder, and major depressive disorder patients.
- To investigate stroke subtypes and adjust for confounding factors in psychiatric populations.
Main Methods:
- Utilized Taiwan's National Health Insurance Research Database (2001-2009) with over 30,000 patients per psychiatric group and matched controls.
- Employed Cox regression to estimate hazard ratios for ischemic and hemorrhagic stroke, with sensitivity analyses for early stroke events.
- Followed participants until death or end of 2011.
Main Results:
- All three psychiatric groups showed significantly elevated risks for both ischemic and hemorrhagic stroke compared to controls.
- Elevated stroke risk was consistent across age and sex strata for all psychiatric conditions.
- Antidepressants, antipsychotics, and non-lithium mood stabilizers demonstrated varying degrees of stroke risk reduction in specific psychiatric groups.
Conclusions:
- Schizophrenia, bipolar disorder, and major depressive disorder are independent risk factors for increased stroke incidence.
- Highlights the critical need for integrated vascular risk assessment and management within psychiatric healthcare settings.
Background:
Major psychiatric disorder, including schizophrenia, bipolar disorder, and major depressive disorder, has been individually associated with increased risk of stroke. However, few studies have directly compared the stroke risk across these diagnostic groups within a unified cohort framework while accounting for stroke subtypes and relevant confounders.
Methods:
Using Taiwan's National Health Insurance Research Database, we identified 30,945 patients with schizophrenia, 30,360 with bipolar disorder, 30,447 with major depressive disorder, and 91,752 age-matched controls without psychiatric illness between 2001 and 2009. Participants were followed until death or the end of 2011. Cox regression models were used to estimate the hazard ratio (HR) for ischemic and hemorrhagic stroke, adjusting for potential confounding factors. Sensitivity analyses were conducted by excluding stroke events occurring within the first 1 or 3 years of psychiatric diagnosis.
Results:
All three psychiatric groups exhibited significantly higher risks of ischemic and hemorrhagic stroke compared with controls. Stroke risk remained consistently elevated across age and sex strata for all psychiatric groups. Greater cumulative exposure to antidepressants was associated with reduced stroke risk across all three disorders; antipsychotics showed protective associations in schizophrenia and bipolar disorder, non-lithium mood stabilizers were protective only in bipolar disorder, and lithium showed no significant association with stroke risk.
Conclusion:
Schizophrenia, bipolar disorder, and major depressive disorder are independently associated with increased stroke risk. These findings highlight the need for integrated vascular risk monitoring in psychiatric care.
More Related Videos
Related Concept Videos
01:29Psychological and Sociocultural Causes of Schizophrenia
01:29Biological Causes of Schizophrenia
Genetic Factors in Schizophrenia
The genetic basis of schizophrenia is strongly supported by family and twin...
01:17Schizophrenia
01:28Psychosis and Antipsychotic Drugs: Overview
01:24Mania and Antimanic Drugs: Overview
01:27Psychosis: Pathophysiology of Schizophrenia and Other Psychotic Disorders
Researchers have identified genetic factors that increase susceptibility to schizophrenia, underscoring the intricate interplay between genetics and environment in disease development. At the core of schizophrenia's pathophysiology is excessive dopaminergic neurotransmission within...