Fig. 2From: Screening for anxiety and depression: reassessing the utility of the Zung scalesVenn diagram illustrating overlap between diagnoses of an anxiety disorder on the PHQ (area a – pink ellipse), and positive screens on the DASS anxiety subscale (area b –green shaded ellipse) and the SAS with a revised cut-off: index scores of 50 and above (area c – clear ellipse). Figure produced using the eulerAPE software developed by Micallef and Rodgers [31]Back to article page