title: The Epidemiology of Psoriatic Arthritis.
abstract: Psoriatic arthritis (PsA) is a chronic systemic inflammatory disorder characterized by joint and entheseal inflammation with a prevalence of 0.05% to 0.25% of the population and 6% to 41% of patients with psoriasis. PsA is a highly heterogeneous inflammatory arthritis. In this review, current knowledge is discussed regarding the epidemiology of PsA, including disease manifestations, classification criteria for adult and juvenile PsA, methods for recognizing early PsA, including use of screening tools and knowledge of risk factors for PsA, and medical comorbidities associated with PsA.
authors.affiliation: Division of Rheumatology, Center for Clinical Epidemiology and Biostatistics, Perelman School of Medicine, University of Pennsylvania, White Building, Room 5024, 3400 Spruce Street, Philadelphia, PA 19104, USA. Electronic address: alexis.ogdie@uphs.upenn.edu.
authors.forename: Alexis
authors.initials: A
authors.lastname: Ogdie
authors.affiliation: Division of Rheumatology, Children's Hospital of Philadelphia, Center for Clinical Epidemiology and Biostatistics, University of Pennsylvania, 3535 Market Street, Room 1526, Philadelphia, PA 19104, USA.
authors.forename: Pamela
authors.initials: P
authors.lastname: Weiss
mesh_terms: D015535:Arthritis, Psoriatic / Q000453:epidemiology*; D014943:Global Health; D006801:Humans; D009017:Morbidity / Q000639:trends; D018570:Risk Assessment / Q000379:methods*; D012307:Risk Factors
keywords: Classification criteria; Comorbidity; Epidemiology; Juvenile psoriatic arthritis; Psoriatic arthritis; Risk factors; Screening tools