title: Results of a non-interventional multicenter observational study on the diagnosis and treatment of patients with axial psoriatic arthritis in rea-world clinical practice in the Russian Federation (NiSaXPA)
abstract: Objective : The aim of the NiSaXPA study is to evaluate the quality of diagnosing, socio-demographic characteristics and treatment tactics of patients with axial psoriatic arthritis (axPsA) in real-world clinical practice in the Russian Federation. Material and methods . The study involved 600 patients from 21 clinical centers in the Russian Federation. Results and discussion. The diagnosis of axPsA was confirmed in 357 (59.5%) of 600 patients according to the centralized expert assessment. All 
journal: Modern Rheumatology Journal