Fig. 2From: Development of a risk score to identify patients with type 2 diabetes mellitus and multivessel coronary artery disease who can defer bypass surgeryExternal validation of point score system in the prompt CABG arm. a Receiver operator characteristic (ROC) curve. b Comparison of survival curves based on quartiles of risk score (blue = first quartile; red = second quartile; green = third quartile; brown = fourth quartile)Back to article page