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J Clin Endocrinol Metab. 2004 Mar;89(3):1481-4.

Quantitative insulin sensitivity check index and the reciprocal index of homeostasis model assessment are useful indexes of insulin resistance in type 2 diabetic patients with wide range of fasting plasma glucose.

Author information

1
Department of Metabolism, Endocrinology, and Molecular Medicine, Osaka City University Graduate School of Medicine, Osaka 545-8585, Japan. fwkx6809@mb.infoweb.ne.jp

Abstract

The purpose of the study was to investigate whether quantitative insulin sensitivity check index (QUICKI) and the reciprocal index of homeostasis model assessment (1/HOMA-IR) are excellent surrogate indexes of insulin resistance in type 2 diabetic patients with various ranges of fasting plasma glucose. One hundred eight type 2 diabetic patients were divided into tertiles according to fasting levels of plasma glucose (FPG) [T1: 4.2 < or = FPG (mmol/liter) < 6.5, n = 36; T2: 6.5 < or = FPG < 8.1, n = 36; T3: 8.1 < or = FPG < or = 11.1, n = 36]. The association between QUICKI or 1/HOMA-IR and insulin resistance index assessed by euglycemic hyperinsulinemic clamp (Clamp-IR) was investigated in each group. QUICKI was strongly correlated with Clamp-IR in all groups (r = 0.615 in T1, r = 0.659 in T2, and r = 0.788 in T3; all subjects, r = 0.691; all P < 0.001). Reciprocal of HOMA-IR also highly correlated with Clamp-IR in all groups (r = 0.600, r = 0.721, and r = 0.730, respectively; all subjects, r = 0.685; all P < 0.001). In conclusion, QUICKI and the reciprocal index of HOMA were highly correlated with Clamp-IR in type 2 diabetic patients with relatively wide ranges of fasting plasma glucose.

PMID:
15001651
DOI:
10.1210/jc.2003-031374
[Indexed for MEDLINE]

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