BMJ : British medical journal
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To determine whether the use of glucagon-like peptide-1 (GLP-1) analogues, compared with the use of dipeptidylpeptidase-4 (DPP-4) inhibitors, is associated with an increased risk of incident breast cancer in patients with type 2 diabetes. ⋯ In this population based cohort study, use of GLP-1 analogues was not associated with an overall increased risk of breast cancer. Although it is not possible to rule out a tumour promoter effect, the observed duration-response associations are likely the result of a transient increase in detection of breast cancers in GLP-1 analogue users.