• Piotr Kucha, Edyta Zagórowicz, Dorota Walkiewicz, Jakub Perwieniec, Michał Maluchnik, Paulina Wieszczy, and Jarosław Reguła.
• Department of Oncological Gastroenterology, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland. piotr.kucha@gmail.com
• Pol. Arch. Med. Wewn. 2022 Aug 22; 132 (7-8).

IntroductionThe frequency of biologic drug treatment for Polish patients diagnosed with ulcerative colitis (UC) or Crohn disease (CD) has been insufficiently studied.ObjectivesWe aimed to analyze the use of biologic treatments among Polish patients suffering from inflammatory bowel diseases (IBDs).Patients And MethodsWe used administrative data collected by the National Health Fund (Narodowy Fundusz Zdrowia [NFZ]), Poland's sole public health care payer. IBD cases were defined as cases with at least 2 records assigned code K50 or K51 according to the International Statistical Classification of Diseases and Related Health Problems, Tenth Revision (ICD‑10) and either at least 2 reimbursed prescriptions for IBD drugs or intestinal surgery preceding the record. We identified IBD patients receiving biologic treatments reimbursed by the NFZ in the years 2012-2020. We assessed the percentages of patients receiving biologic treatments in terms of disease type, sex, age group, and place of residence.ResultsWhile 6.8% of Polish CD patients received biologic treatment in 2012, that figure reached 7.9% by 2020. Biologic treatments were given to 0.4% of UC patients in 2014, and 1.6% in 2020. Among patients with both CD and UC, significantly fewer women received biologic therapy than men. The highest percentages of patients receiving biologic treatment for CD and UC were found in the 10-19 age group, while patients over 70 were the adults most rarely treated with biologic drugs.ConclusionsWe showed a growing use of biologic agents in the treatment of IBD in Poland. Womenreceive biologic treatment for IBD significantly less frequently than men. The pediatric population features the highest proportion of patients receiving such treatment.

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