Changes in medical treatment and surgery rates in inflammatory bowel disease: a nationwide cohort study 1979-2011

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningfagfællebedømt

  • Christine Rungoe
  • Langholz, Ebbe
  • Mikael Andersson
  • Saima Basit
  • Nete M Nielsen
  • Jan Wohlfahrt
  • Tine Jess

INTRODUCTION: Treatment possibilities have changed in inflammatory bowel disease (IBD). We assessed changes in medical treatment and surgery over time and impact of medications on risk of surgery in a population-based cohort.

METHODS: 48 967 individuals were diagnosed with IBD (Crohn's disease (CD), 13 185; ulcerative colitis (UC), 35 782) during 1979-2011. Cumulative probability of receiving 5-aminosalicylic acids (5-ASA), topical, oral corticosteroids, thiopurines, and tumour necrosis factor-α (TNF-α) blockers, and of first minor or major surgery according to period of diagnosis, was estimated. Medication use and risk of surgery was examined by Cox regression.

RESULTS: 5-year cumulative probability of first major surgery decreased from 44.7% in cohort (1979-1986) to 19.6% in cohort (2003-2011) (p < 0.001) for CD, and from 11.7% in cohort (1979-1986) to 7.5% in cohort (2003-2011) (p < 0.001) for UC. Minor surgery risk decreased significantly in CD. From cohort (1995-2002) to cohort (2003-2011), a significant increase in use of thiopurines and TNF-α blockers was observed, paralleled by a significant decrease in use of 5-ASA and corticosteroids. Comparing use of azathioprine (or oral corticosteroids) to never-use, no convincing surgery-sparing effect was found. Comparing use in 3+ months of a given drug with use <3 months, only 3+ months use of oral corticosteroids reduced the risk of surgery in patients with disease duration of >1 year.

CONCLUSIONS: Parallel to an increasing use of thiopurines and TNF-α blockers in IBD over time, a persistent significant decrease in surgery rates was observed along with a significant decrease in use of 5-ASA and corticosteroids. However, no convincing surgery-sparing effect of newer medications was found.

OriginalsprogEngelsk
TidsskriftGut
Vol/bind63
Udgave nummer10
Sider (fra-til)1607-16
Antal sider10
ISSN0017-5749
DOI
StatusUdgivet - okt. 2014
Eksternt udgivetJa

Bibliografisk note

Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions.

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