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

Table 2 Results of the meal tolerance test

Time (min)	0	30	60	120	180
Glucose (mmol/L)	7.66 ± 1.29	8.96 ± 2.34	10.24 ± 3.12	10.10 ± 2.52	8.50 ± 2.47
Insulin (pmol/L)	60.5 ± 39.7	180.0 ± 141.0	220.9 ± 135.5	263.7 ± 147.8	216.3 ± 170.0
CPR (nmol/L)	0.60 ± 0.25			1.60 ± 0.48
Insulin resistance indices calculated from the MTT
Indices	HOMA-IR	ISI	QUICKI	CPI	20(F-CPR × FPG)
Value	2.90 ± 1.84	5.30 ± 2.20	0.30 ± 0.02	8.30 ± 4.21	5.00 ± 2.00

Data are means ± standard deviation.
CPR C-peptide immunoreactivity, MTT meal tolerance test, HOMA-IR homeostasis model assessment of insulin resistance, ISI insulin sensitivity index, QUICKI quantitative insulin sensitivity check index, CPI C-peptide index, F-CPR fasting C-peptide immunoreactivity, FPG fasting plasma glucose.

ISSN: 1475-2840