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Quantitative study
Postmenopausal women with medically treated diabetes have increased risk of lung cancer
  1. Michael Leitzmann
  1. Department of Epidemiology and Preventive Medicine, Regensburg University, Regensburg, Germany
  1. Correspondence to : Dr Michael Leitzmann
    Department of Epidemiology and Preventive Medicine, Regensburg University, Franz-Josef-Strauss-Allee 11, Regensburg 93053, Germany; michael.leitzmann{at}

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Implications for practice and research

  • Lung cancer may potentially be added to the list of cancers directly related to diabetes or insulin treatment.

  • Current evidence is insufficient to consider lung cancer risk as the basis for selecting appropriate diabetes therapy.

  • Diabetes patients who require insulin therapy for metabolic control should continue to be treated with insulin.


Considerable epidemiological evidence suggests that type 2 diabetes is associated with increased risk of developing various types of malignancies, most notably cancers of the liver, pancreas, endometrium, colorectum, breast and bladder. In contrast, type 2 diabetes has previously not been widely thought to be linked with lung cancer.1 …

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  • Competing interests None.