EPIDEMIOLOGY AND HEALTH SERVICES RESEARCH

Association of psoriasis with stroke and myocardial infarction: meta-analysis of cohort studies

T. Xu

Department of Epidemiology, School of Public Health, Medical College of Soochow University, Suzhou, Jiangsu Province 215123, China

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Y.-H. Zhang,

Y.-H. Zhang

Department of Epidemiology, School of Public Health, Medical College of Soochow University, Suzhou, Jiangsu Province 215123, China

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T. Xu,

T. Xu

Department of Epidemiology, School of Public Health, Medical College of Soochow University, Suzhou, Jiangsu Province 215123, China

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Y.-H. Zhang,

Y.-H. Zhang

Department of Epidemiology, School of Public Health, Medical College of Soochow University, Suzhou, Jiangsu Province 215123, China

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First published: 16 August 2012

https://doi.org/10.1111/bjd.12002

Citations: 76

Yonghong Zhang.
E-mail: [email protected]

Funding sources
This study was supported by the National Natural Science Foundation of China (Grant No. 30972531) and a Project of the Priority Academic Program Development of Jiangsu Higher Education Institutions.

Conflicts of interest
None declared.

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Summary

Background Psoriasis is a common, chronic, relapsing, inflammatory skin disorder. Observational studies suggest an association between psoriasis and the incidence of stroke or myocardial infarction (MI). However, whether psoriasis is an independent risk factor for these two vascular events remains controversial.

Objectives To evaluate the association of psoriasis with stroke and MI by conducting a meta-analysis of cohort studies.

Methods Cohort studies were searched in MEDLINE (Pubmed), EMBASE and Cochrane Library from their inception to March 2012. Stroke and MI were considered as a composite endpoint. Two authors independently extracted information on the characteristics of the study participants, follow-up range and control for potential confounding factors. A random-effects model was used to calculate the overall combined risk estimates.

Results Seven cohort studies were included in the meta-analysis. On the basis of cohort characteristics, five of them were considered good quality and two were fair. The overall combined relative risk for psoriasis and composite vascular endpoint was 1·2 (95% confidence interval 1·1–1·31). Subgroup analysis maintained this significance with respect to stroke and MI individually. Sensitivity analysis and ‘trim and fill’ method yielded similar results. No evidence of publication bias was observed.

Conclusions This meta-analysis of cohort studies suggests that psoriasis significantly increases the risk of stroke and MI. The increase is probably independent of conventional cardiovascular risk factors.

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Volume167, Issue6

December 2012

Pages 1345-1350

Association of psoriasis with stroke and myocardial infarction: meta-analysis of cohort studies

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Association of psoriasis with stroke and myocardial infarction: meta-analysis of cohort studies

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