Table 2 Formulas for insulin sensitivity indices calculation.
IS Index | Formula (units) | Reference |
---|---|---|
Fasting indices | ||
QUICKI | 1/ (log I0 (µU/L) + log G0 (mg/dl)) | Katz et al.36 |
Inv-HOMA-IR | -1 × (I0 (µU/L) × G0 (mmol)) / 22.5 | Matthews et al.37 |
OGTT0,120 indcies | ||
StumvollModi | 0.156 − 0.0000459× I120 (pmol/L) − 0.000321× I0 (pmol/L) − 0.00541× G120 (mmol/L) | Stumvoll et al.38 |
GuttIndex | 75,000 + (G0 (mg/dl) - G120 (mg/dl)) × 0.19 × BW (kg) / (120 × MPG (mg/dl) × log(MSI (µU/L)) | Gutt et al.39 |
OGTT0,30,120 indices | ||
Matsuda | 10000 / (√ (G0 (mg/dl)) × (I0 ((µU/L)) × (mean G(mg/dl)) × (mean I((µU/L) )) | Matsuda et al.40 |
BIGTTSI | exp (4.90 − (0.00402 × I0 (pmol/L)) − (0.000556 × I30 (pmol/L)) − (0.00127 × I120 (pmol/L)) − (0.152 × G0 (mmol/L)) − (0.00871 × G30 (mmol/L)) − (0.0373 × G120 (mmol/L)) − (0.145 × sex (male/female)) − (0.0376 × BMI (kg/m2))) | Hansen et al.41 |