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Epidemiology, mortality and prevalence of colorectal cancer in ulcerative colitis patients between 2010-2016 in Hungary – a population-based study

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Listed:
  • Péter Kunovszki
  • Ágnes Milassin
  • Judit Gimesi-Országh
  • Péter Takács
  • Kata Szántó
  • Anita Bálint
  • Klaudia Farkas
  • András Borsi
  • Péter L Lakatos
  • Tamás Szamosi
  • Tamás Molnár

Abstract

Background: The incidence and prevalence of ulcerative colitis (UC) varies geographically. The risk of colorectal cancer (CRC) and possibly some other malignancies is increased among patients with UC. It is still debated if patients with UC are at a greater risk of dying compared with the general population. Our aim was to describe the epidemiology and mortality of the Hungarian UC population from 2010 to 2016 and to analyze the associated malignancies with a special focus on CRC. Methods: This is an observational, descriptive, epidemiological study based on the National Health Insurance Fund social security databases from 2010 to 2016. All adult patients who had at least two events in outpatient care or at least two medication prescriptions, or at least one inpatient event with UC diagnosis were analyzed. Malignancies and CRC were defined using ICD-10 codes. We also evaluated the survival of patients suffering from UC compared with the general population using a 3 to 1 matched random sample (age, gender, geography) from the full population of Hungary. Results: We found the annual prevalence of UC 0.24–0.34%. The incidence in 2015 was 21.7/100 000 inhabitants. Annual mortality rate was 0.019–0.023%. In this subpopulation, CRC was the most common cancer, followed by non-melanotic skin and prostate cancer. 8.5% of the UC incident subpopulation was diagnosed with CRC. 470 (33%) of the CRC patients died during the course of the study (25% of all deaths were due to CRC), the median survival was 9.6 years. UC patients had significantly worse survival than their matched controls (HR = 1.65, 95% CI: 1.56–1.75). Summary: This is the first population-based study from Eastern Europe to estimate the different malignancies and mortality data amongst Hungarian ulcerative colitis patients. Our results revealed a significantly worse survival of patients suffering from UC compared to the general population.

Suggested Citation

  • Péter Kunovszki & Ágnes Milassin & Judit Gimesi-Országh & Péter Takács & Kata Szántó & Anita Bálint & Klaudia Farkas & András Borsi & Péter L Lakatos & Tamás Szamosi & Tamás Molnár, 2020. "Epidemiology, mortality and prevalence of colorectal cancer in ulcerative colitis patients between 2010-2016 in Hungary – a population-based study," PLOS ONE, Public Library of Science, vol. 15(5), pages 1-13, May.
    • Handle: RePEc:plo:pone00:0233238
    DOI: 10.1371/journal.pone.0233238
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