Trends in psoriatic arthritis epidemiology in Poland
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Rheumatology International https://doi.org/10.1007/s00296-020-04734-x
INTERNATIONAL
EPIDEMIOLOGY OF RMD
Trends in psoriatic arthritis epidemiology in Poland Małgorzata Tłustochowicz1 · Waldemar Wierzba2 · Michał Marczak3 · Witold Tłustochowicz1 · Andrzej Śliwczyński2 · Filip Raciborski4 · Brygida Kwiatkowska5 · Melania Brzozowska3,6 · Andrzej Jacyna7 · Bartłomiej Kisiel1 Received: 17 September 2020 / Accepted: 12 October 2020 © The Author(s) 2020
Abstract Psoriatic arthritis (PsA) is a heterogeneous inflammatory arthritis, usually seronegative and associated with psoriasis (Ps). The prevalence and incidence of psoriatic arthritis show strong ethnic and geographic variations. The aim of the study was to assess the epidemiological trends in psoriatic arthritis in Poland. The National Health Fund (NHF) database for the period 2008–2018 was analyzed. PsA was defined as ICD-10 codes L40.5, M07, M07.0, M07.1, M07.2 and M07.3, while psoriasis as ICD-10 codes L40 and L40.X (L40.0 to L40.9). A steady increase in the number of PsA patients (from 16,790 to 32,644) and in PsA recorded prevalence (from 38.47 per 100,000 in 2008 to 73.11 per 100,000 in 2018) was observed between 2008 and 2018. The PsA/Ps ratio increased to a similar extent (from 8.3 to 17.5%). The percentage of PsA patients receiving rehabilitation services remained constant throughout the observation period (mean: 17.35%; range 16.7–18.9%). The study showed a steady and continuous increase in PsA recorded prevalence. A simultaneous increase in the PsA/Ps ratio suggests that the main reason for the observed trend is greater disease detection . Keywords Psoriasis · Psoriatic arthritis · Prevalence · Epidemiology
Introduction Inflammatory arthritis is an important cause of morbidity and disability in industrialized countries. The current data show that the incidence and prevalence of polyarthritis in Poland are as high as 284.7 per 100,000 and 2030.1 per * Małgorzata Tłustochowicz [email protected] 1
Department of Internal Diseases and Rheumatology, Military Institute of Medicine, Warsaw, Poland
2
Satellite Campus in Warsaw, University of Humanities and Economics in Lodz, Łódź, Poland
3
Department of Management and Logistics in Health Care, Medical University of Lodz, Łódź, Poland
4
Department of Prevention of Environmental Hazards and Allergology, Medical University of Warsaw, Warsaw, Poland
5
Early Arthritis Clinic, National Institute of Geriatrics, Rheumatology and Rehabilitation, Warsaw, Poland
6
Department of Drug Management, National Health Fund, Warsaw, Poland
7
National Health Fund, Warsaw, Poland
100,000, respectively [1]. Psoriatic arthritis (PsA) is one of the most common form of polyarthritis. It is a chronic inflammatory disease involving the articular and periarticular structures, usually seronegative and most often associated with psoriasis [2]. According to the current classification PsA belongs to the group of spondyloarthritis. Initially, PsA was considered a relatively benign disorder; h
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