Figure 4.

Regression lines illustrating the relationships between the Matsuda index of insulin sensitivity and the ratio of the areas under the curve for insulin to glucose over 120 min (AUC ins/glu in pmol/mmol) according to fasting glucose tolerance status. NFG = normal fasting glucose (Y = 380.365*X^-0.652); IFG = impaired fasting glucose (Y = 258.174*X^-0.548); Diabetes = type 2 diabetes mellitus (Y = 110.751*X^-0.734) Key: Circle = NFG; Square = IFG; Triangle = Diabetes