Catanoso M, Pipitone N, Salvarani C
Unità Operativa di Reumatologia, Dipartimentodi Medicina Interna, Azienda Ospedaliera ASMN, Istituto di Ricovero e Cura a Carattere Scientifico, Reggio Emilia, Italy.
Reumatismo. 2012 Jun 5;64(2):66-70. doi: 10.4081/reumatismo.2012.66.
Epidemiological studies on psoriatic arthritis have long been hampered by the absence of widely accepted classification criteria. The development of the CASPAR (ClASsification criteria for Psoriatic ARthritis) criteria has recently provided the framework for conducting epidemiological studies in psoriatic arthritis using uniform recruitment criteria. However, so far, only a minority of studies have adopted such criteria. In addition to the lack of shared classification criteria, differences in study settings, designs, and ascertainment methods have contributed to yield substantial disparities in the estimates of the incidence (from 3,02 to 23,1 cases per 100,000 people) and prevalence (from 49,1 to 420 cases per 100,000 people) of psoriatic arthritis around the globe. Overall, the available data suggests that the prevalence of psoriasis in the general population is approximately 2-3%, with about a third of patients with psoriasis having arthritis. Therefore, psoriatic arthritis may affect 0,3- 1,0% of the population, a frequency not dissimilar from that of rheumatoid arthritis. Future epidemiological studies should be carried out in larger numbers of patients diagnosed using consistent criteria.
长期以来，银屑病关节炎的流行病学研究因缺乏广泛认可的分类标准而受阻。CASPAR（银屑病关节炎分类标准）标准的制定，最近为使用统一纳入标准开展银屑病关节炎的流行病学研究提供了框架。然而，到目前为止，只有少数研究采用了此类标准。除了缺乏统一的分类标准外，研究背景、设计和确诊方法的差异，也导致全球银屑病关节炎发病率（每10万人中3.02至23.1例）和患病率（每10万人中49.1至420例）的估计存在显著差异。总体而言，现有数据表明，普通人群中银屑病的患病率约为2%-3%，约三分之一的银屑病患者患有关节炎。因此，银屑病关节炎可能影响0.3%-1.0%的人口，这一频率与类风湿关节炎相似。未来的流行病学研究应以大量使用一致标准确诊的患者为对象展开。
