Association of the fasting- and OGTT-derived indices of insulin release with IVGTT-derived AIR (N = 274).

Prior to multiple linear regression analysis, all continuous variables were loge-transformed to approximate normal distribution. In the multiple linear regression models, AIR was chosen as dependent variable, the fasting-/OGTT-derived insulin secretion index as independent variable and gender, age, BMI, and OGTT-derived insulin sensitivity as confounding variables. AIR – acute insulin response; AUC – area under the curve; CIR – cleared insulin response; DI – disposition index; HOMA-B – homeostasis model assessment of beta-cell function; IGI – insulinogenic index; IVGTT – intravenous glucose tolerance test; OGTT – oral glucose tolerance test.