Figure 4

Hyperglycaemic index (HGI) for various glucose cutoffs. The cutoff in all other analyses was chosen at 6 mmol/l because it was the upper limit of the intensive treatment group in the Leuven study [4, 5]. To see how HGI performs at other cutoff values, the area under the ROC curve was determined for HGI cutoffs from 4.0 to 15.0 mmol/l. In the patients studied, a cutoff between 6.0 and 8.0 mmol/l was associated with the greatest area.