Fig. 1.

Area under ROC curve, sensitivity and specificity of PWV, Aix and RHI towards diabetes and diabetic foot (a–f). a Area under ROC curve, sensitivity and specificity of pulse wave velocity (PWV) in diabetic subjects vs. controls. b Area under ROC curve, sensitivity and specificity of ractive hyperaemia index (RHI) in diabetic subjects vs. controls c Area under ROC curve, sensitivity and specificity of pulse wave velocity (PWV) in subjects with diabetic foot vs. controls. d Area under ROC curve, sensitivity and specificity of ractive hyperaemia index (RHI) in subjects with diabetic foot vs. controls. e Area under ROC curve, sensitivity and specificity of pulse wave velocity (PWV) in subjects with diabetic foot vs. diabetics. f Area under ROC curve, sensitivity and specificity of ractive hyperaemia index (RHI in subjects with diabetic foot vs. diabetics