Table 2—

Spearman correlation coefficients for insulin and proinsulin, HOMA-IR, and HOMA-B

Fasting- specific insulinFasting proinsulinProinsulin-to-insulin ratioPostload- specific insulinPostload proinsulinHOMA-IR
Fasting proinsulin0.47*
Proinsulin-to-insulin ratio0.14*0.78*
Postload-specific insulin0.67*0.43*0.04
Postload proinsulin0.51*0.68*0.41*0.74*
HOMA-IR0.95*0.53*−0.040.63*0.52*
HOMA-B0.63*0.09−0.34*0.44*0.25*0.38*
  • *

    * Correlation is statistically significant (P < 0.01). HOMA-IR, fasting insulin (in microunits per milliliter) × fasting glucose (in millimoles per liter)/22.5; HOMA-B, fasting insulin (in microunits per milliliter) × 20/fasting glucose (in millimoles per liter) − 3.5.