Figure 1From: Evaluating cutpoints for the MHI-5 and MCS using the GHQ-12: a comparison of five different methods Graphical illustration of the Youden Index (J) and the (0,1) criterion. 1. (0,1) refers to the minimum distance between the point (0,1) and the ROC curve. 2. J refers to the Youden Index in equation 2.Back to article page