Fig. 2
From: Accuracy of insulin resistance indices for metabolic syndrome: a cross-sectional study in adults
[Nomograms were adapted from Fagan TJ (N Engl J Med 1975;293:257; copyright 1975, New England Journal of Medicine, all rights reserved)]
Fagan’s likelihood nomograms show the variation in probability of a metabolic syndrome diagnosis after a positive (above cut-off point) or negative test (below cut-off point) result for the reciprocals of Gutt and OGIS indices, as well as HOMA-IR and fasting insulin indices. The figure below synthesize these findings, comparing the variation of probability for metabolic syndrome between indices