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Arthritis Care Res (Hoboken). 2011 Feb;63(2):195-202. doi: 10.1002/acr.20363.

Prevalence of atherosclerotic risk factors and the metabolic syndrome in patients with chronic inflammatory arthritis.

Author information

1
Tuen Mun Hospital, Chinese University of Hong Kong, Hong Kong, China. ccmok2005@yahoo.com

Abstract

OBJECTIVE:

To evaluate the prevalence of the metabolic syndrome in patients with rheumatoid arthritis (RA), ankylosing spondylitis (AS), and psoriatic arthritis (PsA).

METHODS:

Consecutive patients with RA, AS, or PsA who attended our outpatient arthritis clinics between July and November 2009 were recruited for a study of atherosclerotic risk factors and the metabolic syndrome, defined according to the 2009 joint statements using the Asian criteria for central obesity.

RESULTS:

Nine hundred thirty patients were studied (699 with RA, 122 with AS, and 109 with PsA; 70% women, mean±SD age 51.1±12.7 years). The mean±SD disease duration for patients with RA, AS, and PsA was 5.3±5.4, 6.0±5.6, and 3.6±3.1 years, respectively. The prevalence of metabolic syndrome was significantly higher in PsA (38%) than RA (20%) or AS (11%; P<0.001). The odds ratios (ORs) for the metabolic syndrome compared to age- and sex-matched controls were 0.98 (95% confidence interval [95% CI] 0.78-1.23, P=0.88), 0.59 (95% CI 0.30-1.15, P=0.12), and 2.68 (95% CI 1.60-4.50, P<0.001), respectively, for RA, AS, and PsA. Patients with PsA had a significantly higher prevalence of impaired fasting glucose (30%; P<0.001), low high-density lipoprotein (HDL) cholesterol (33%; P<0.001), high triglycerides level (21%; P=0.008), central obesity (65%; P<0.001), and high blood pressure (56%; P=0.045). In a logistic regression model, the adjusted OR for the metabolic syndrome in PsA was 2.44 (95% CI 1.48-4.01, P<0.001) relative to RA or AS. The adjusted ORs for central obesity, impaired fasting glucose, hypertriglyceridemia, and low HDL cholesterol were also significantly higher in PsA patients.

CONCLUSION:

Patients with PsA, but not RA or AS, have a significantly higher prevalence of the metabolic syndrome compared to the general population. Among the 3 diseases studied, PsA has the highest prevalence of the metabolic syndrome and is associated with the highest cardiovascular risk.

PMID:
20890981
DOI:
10.1002/acr.20363
[Indexed for MEDLINE]
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