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Table 4 Partial correlation coefficients between 20/(F-CPR × FPG) and GIR adjusted for the use of hypoglycemic drugs/diet therapy

From: 20/(fasting C-peptide × fasting plasma glucose) is a simple and effective index of insulin resistance in patients with type 2 diabetes mellitus: a preliminary report

Hypoglycemic drug/diet therapy All patients GIR 5–10 mg·kg–1·min–1
(n= 15) (n = 10)
Partial r P Partial r P
All drugs 0.854 < 0.0001 0.917 < 0.0001
Biganide 0.830 < 0.0001 0.902 < 0.0001
Sulfonylurea 0.839 < 0.0001 0.949 < 0.0001
DPP4 inhibitor 0.834 < 0.0001 0.896 < 0.0001
Glinide 0.833 < 0.0001 0.886 < 0.0001
α-GI 0.793 0.001 0.889 < 0.0001
Diet therapy alone 0.854 < 0.0001 0.917 < 0.0001
  1. Correlations between 20/(F-CPR × FPG) and GIR were adjusted for all drugs or for individual drugs.
  2. DPP4 dipeptidyl peptidase 4, GI glucosidase inhibitor.