Figure 2

ROC curves of identifying sick leaves lasting at least 12 weeks. The ROC curve of ability to identify sick leaves lasting at least 12 weeks, plotted at the average of two consecutive categories, in length predicted by sick-listed (n = 152), and mean length predicted by National Insurance officers and medical consultants in the responder group (n = 149, 150) and for all the data (n= 972, 975). The points representing cut-offs in predicted length >= 4 weeks (red), >= 8 weeks (pink) and >= 12 weeks (blue) are identified.