On the other hand patients receiving DPP-4 inhibitors (OR 0.34; 95%CI 0.16-0.70), thiazolidinediones (OR 0.50; 95%CI 0.28-0.89) and as a trend glucosidase inhibitors (OR 0.22; 95%CI 0.03-1.60) on top of metformin had a decreased risk for hypoglycaemia in univariate analyses. Here, DPP4 is linked to Hypoglycemia.