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Prevalence of Undiagnosed Psoriatic Arthritis Shown 

Screen all patients with psoriasis for PsA 

AUGUST 5, 2015

The importance of dermatologists screening their patients with psoriasis for psoriatic arthritis (PsA) was underscored in a recent systematic review and meta-analysis.

Researchers searched PubMed, Cochrane, and Embase for studies to review. Studies they selected did not aim to uncover prevalence of undiagnosed PsA, so investigators instead used the time medical care was sought to estimate prevalence. Seven epidemiological studies and five trials that used PsA screening questionnaires were used because they allowed the research team to identify patients with newly diagnosed PsA. 

The analysis showed:

• 15.5% prevalence of undiagnosed PsA

• 10.1% prevalence when analyzing data from just the epidemiological studies

These prevalence rates highlight the fact that dermatologists must be vigilant about screening all of their patients with psoriasis for underlying PsA.

Citation: Villani A, Rouzaud M, Servain M, et al. Prevalence of undiagnosed psoriatic arthritis among psoriasis patients: Systematic review and meta-analysis. J Am Acad Dermatol. 2015; Aug;73(2):242-8.