AB0829 Demographics of Patients with New-Onset Psoriatic Arthritis: Real Life Data from an Inception Cohort

BackgroundPsoriatic arthritis is a complex disease with a wide range of manifestations. In this inception cohort of PsA patients we aimed to identify the initial manifestations as well as disease activity characteristics and compare with an unselected group of patients with longstanding disease.MethodsPsART (Psoriatic Arthritis Registry of Turkey) is a prospective, multicentre study in Turkey on patients with PsA. Patients are consecutively recruited to this registry. Patients who have been newly diagnosed with PsA have been identified, and their characteristics were compared with longstanding disease.ResultsWithin 746 patients recruited, 111 (14.9%) had a new diagnosis for PsA. Patients in the inception cohort were significantly younger than the rest of the cohort (p=0.03) (table). Females were 53.2% of the inception and 66.8% of the non-inception cohort (p=0.007). For types of joint patterns, 14.4% of the inception cohort had only axial involvement whereas this was seen in 8.2% for the other group (p=0.05). The other joint patterns were comparable among groups. Both groups had similar tender and swollen joint counts, BASDAI and BASFI. Patient (p=0.002) and physician global assessments (p