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Anger, hostility and risk of stroke: a meta-analysis of cohort studies
Hanze Chen1, Beidi Zhang2, Weishuang Xue1
1Department of Neurology, The First Affiliated Hospital, China Medical University, Shenyang, China.
Insights
Anger and hostility do not increase stroke risk overall. However, higher anger levels are linked to increased stroke risk in individuals with lower socioeconomic status.
Area of Science:
- Cardiovascular epidemiology
- Psychosocial factors in health
Background:
- Inconsistent findings exist regarding the link between anger/hostility and stroke risk.
- Previous research necessitates a comprehensive evaluation of this association.
Purpose of the Study:
- To conduct a meta-analysis assessing the relationship between anger and hostility and stroke risk.
- To clarify the impact of psychosocial factors on cerebrovascular disease.
Main Methods:
- Systematic literature search of PubMed and Embase databases.
- Inclusion of cohort studies examining anger, hostility, and stroke incidence.
- Pooled analysis using a random effects model for heterogeneity.
Main Results:
- Meta-analysis included 10 studies with 52,277 participants.
- No significant overall association between anger/hostility and stroke risk (HR 1.08, 95% CI 0.79-1.47).
- A positive association emerged when excluding high socioeconomic status individuals (HR 1.30, 95% CI 1.06-1.59).
Conclusions:
- Elevated anger and hostility levels are not generally associated with increased stroke risk.
- A notable positive association between anger/hostility and stroke risk exists among individuals of lower socioeconomic status.
Objective:
A growing number of studies have been conducted on the relationship between anger and hostility and the risk of stroke, and their conclusions are not consistent. Accordingly, we performed a meta-analysis to evaluate the relationship between anger and hostility and the risk of stroke.
Methods:
We searched the PubMed and Embase databases for cohort studies, focusing on the relationship between anger and hostility and risk of stroke. Then studies were selected according to the inclusion and exclusion criteria. Study results were pooled using a random effects model.
Results:
Ten studies from seven articles involving 52,277 participants were included in this meta-analysis. No significant association was found between anger and hostility level and risk of stroke (hazard ratio 1.08; 95% confidence interval 0.79-1.47). However, a positive association was seen when people with high socioeconomic status were excluded (hazard ratio 1.30; 95% confidence interval 1.06-1.59).
Conclusion:
A higher level of anger and hostility is not associated with elevated risk of stroke. However, the association is positive among people with lower socioeconomic status.
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