Psoriasis and cardiovascular disease risk factors. The HUNT Study, Norway

Abstract

Background

Studies have examined the associations between psoriasis and cardiovascular diseases and their risk factors, but the results are conflicting, especially in the general population.

Objectives

To investigate the association of psoriasis, and in particular psoriasis severity, with objectively measured cardiovascular disease risk factors and cardiovascular morbidity in a large population-based cross-sectional study.

Methods

We linked data on 50 245 persons in the HUNT3 Study, Norway with information from the National Prescription Database to obtain information on use of psoriasis medication. A total of 2 894 persons reported to have psoriasis; 2 643 were classified as mild and 251 as moderate/severe psoriasis. We used linear and logistic regression to estimate adjusted associations with 95% confidence intervals (CIs) between psoriasis and cardiovascular disease risk factors and morbidity.

Results

We observed a positive association between psoriasis and objective measures of body mass index (BMI), waist circumference and high-sensitivity C-reactive protein (hsCRP), but no clear association with blood pressure and blood lipids. People with moderate/severe psoriasis had an odds ratio for being overweight of 1.94 (95% CI 1.42, 2.67), whereas the odds ratio for metabolic syndrome was 1.91 (95% CI 1.47, 2.49). Psoriasis was also positively associated with self-reported diabetes, myocardial infarction and angina pectoris.

Conclusions

In this population-based study we found that psoriasis was positively associated with measures of adiposity, as well as with a clustering of cardiovascular disease risk factors. Overall, these associations were strongest for people with moderate/severe psoriasis.

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