Key clinical point: Patients with psoriasis were more likely to have a delayed onset of psoriatic arthritis (PsA) if they were diagnosed with psoriasis at a younger age or suffered from severe psoriasis .
Major finding: The median time from psoriasis diagnosis to the incidence of PsA was 35.5 months with age at psoriasis onset (odds ratio [OR] per 10-year decrease 1.63; 95% CI 1.26-2.11) and its severity ( OR for severe vs. mild 3.65; 95% CI 1.18-11.32) being associated with having a psoriasis diagnosis >1 year prior to incident PsA.
Study details: Findings are from a retrospective nested case-control study including 158 patients with incident PsA, of which 41% had concurrent psoriasis and 59% patients had onset of psoriasis before PsA.
Disclosures: This study was funded by the Rochester Epidemiology Project supported by National Institute on Aging, National Center for Advancing Translational Sciences, and others. The authors declared serving as consultants or receiving grants, consulting fees, honoraria, and research support from several sources.
Source: Karmacharya P et al. Semin Arthritis Rheum. 2021;151949 (Dec 31). Doi: 10.1016/j.semarthrit.2021.12.013 .