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Letter
Authors’ response: surgery rates in IBD
  1. Christine Rungoe,
  2. Tine Jess
  1. Department of Epidemiology Research, Statens Serum Institut, Copenhagen S, Denmark
  1. Correspondence to Dr Tine Jess, Department of Epidemiology Research, Statens Serum Institut, Artillerivej 5, DK-2300 Copenhagen S, Denmark; tjs{at}ssi.dk

https://doi.org/10.1136/gutjnl-2014-306730

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    To the Editor,

    We thank Dr Tøttrup and colleagues for their comments1 on our recent paper on decreasing risk of surgery over time among Danish patients with IBD.2 We agree with the authors that it is not certain the observed decrease in surgery is explained by the parallel changes in medication use. However, results do not reflect the fact that outpatients were included in later cohorts. This was tested thoroughly and—as described in the paper—restricting analyses to inpatients only, we obtained nearly identical results. In other words, even among inpatients, a statistically significant decrease in surgery over time was observed.

    References

    1. ↵
      Tøttrup A, Nørgård BM, Qvist N. Inflammatory bowel disease, surgery for IBD. Gut 2015;64:187–8.
    2. ↵
      1. Rungoe C,
      2. Langholz E,
      3. Andersson M,
      4. et al
      . Changes in medical treatment and surgery rates in inflammatory bowel disease: a nationwide cohort study 1979–2011. Gut 2014;63:1607–16.

    Footnotes

    • Correction notice The title of this letter has changed since published Online First.

    • Contributors Both authors contributed equally in this manuscript.

    • Competing interests None.

    • Provenance and peer review Not commissioned; internally peer reviewed.

    Linked Articles

    • PostScript
      Surgery rates in IBD
      Anders Tøttrup Bente Mertz Nørgård Niels Qvist
      Gut 2014; 64 187-188 Published Online First: 17 Jan 2014. doi: 10.1136/gutjnl-2013-306645