Incidence and prevalence of inflammatory bowel disease in UK primary care: a population-based cohort study.

BMJ Open
Thomas Joshua PasvolGreta Rait

Abstract

We describe temporal trends in the recorded incidence of inflammatory bowel disease (IBD) in UK primary care patients between 2000 and 2018. A cohort study. The IQVIA Medical Research data (IMRD) primary care database. All individuals registered with general practices contributing to IMRD during the period 01 January 2000-31 December 2018. The primary outcome was the recorded diagnosis of IBD. 11 325 025 individuals were included and 65 700 IBD cases were identified, of which 22 560 were incident diagnoses made during the study period. Overall, there were 8077 incident cases of Crohn's disease (CD) and 12 369 incident cases of ulcerative colitis (UC). Crude incidence estimates of 'IBD overall', CD and UC were 28.6 (28.2 to 28.9), 10.2 (10.0 to 10.5) and 15.7 (15.4 to 15.9)/100 000 person years, respectively. No change in IBD incidence was observed for adults aged 17-40 years and children aged 0-9 years. However, for adults aged over 40 years, incidence fell from 37.8 (34.5 to 41.4) to 23.6 (21.3 to 26.0)/100 000 person years (average decrease 2.3% (1.9 to 2.7)/year (p<0.0001)). In adolescents aged 10-16 years, incidence rose from 13.1 (8.4 to 19.5) to 25.4 (19.5 to 32.4)/100 000 person years (average increase 3.0% (1.7 to 4.3)/...Continue Reading

Citations

Mar 26, 2021·Clinical Medicine : Journal of the Royal College of Physicians of London·Jonathan P SegalAilsa L Hart
May 1, 2021·Journal of Clinical Medicine·Alicja Ewa RatajczakIwona Krela-Kaźmierczak
Jun 3, 2021·Nutrients·Jean-Frédéric LeBlancAilsa L Hart

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