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Letters Type 2 diabetes and cancer

Authors’ reply to editorial linked to their umbrella review of meta-analyses of observational studies on type 2 diabetes and cancer

BMJ 2015; 350 doi: (Published 11 February 2015) Cite this as: BMJ 2015;350:h711
  1. Konstantinos K Tsilidis, assistant professor of epidemiology1,
  2. John PA Ioannidis, professor2
  1. 1Department of Hygiene and Epidemiology, University of Ioannina School of Medicine, Ioannina, 45110, Greece
  2. 2Stanford Prevention Research Center, Department of Medicine, and Department of Health Research and Policy, Stanford University School of Medicine, and Department of Statistics, Stanford University School of Humanities and Sciences, Stanford, CA, USA
  1. ktsilidi{at}

We thank Satija and colleagues for their thoughtful editorial on our umbrella systematic review.1 2 They interpret the evidence linking type 2 diabetes to multiple cancers as being strong overall,1 but we think that more caution is needed. Prediction intervals are increasingly thought to …

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