DPP4 and Hypoglycemia: Oral dual combination therapy (0.44; 0.36-0.54), combination use of metformin with glitazones (0.46; 0.28-0.83), metformin with DPP-4 inhibitors (0.34; 0.25-0.45) and any OAD with GLP-1 analogues (0.47; 0.30-0.74) were associated with a reduced rate of hypoglycaemia.