Pooled patient level data are better suited than study level data to investigate the link between dipeptidyl peptidase-4 inhibitors and the risk of heart failure in type 2 diabetes.
Patel T, Tesfaldet B, Gandotra C. Pooled patient level data are better suited than study level data to investigate the link between dipeptidyl peptidase-4 inhibitors and the risk of heart failure in type 2 diabetes. BMJ. 2016 May 24; 353:i2920.