Validation of the insulin sensitivity index (ISI0,120): Comparison with other measures

Miriam Gutt, Catherine L. Davis, Susan B. Spitzer, Maria Llabre, Mahendra Kumar, Eileen M. Czarnecki, Neil Schneiderman, Jay S Skyler, Jennifer B Marks

Research output: Contribution to journalArticle

319 Citations (Scopus)

Abstract

The purpose of this study was to explore possible calculations using oral glucose tolerance test (OGTT) values in order to develop a simple measure of insulin sensitivity. We devised a formula for an insulin sensitivity index, ISI0,120, that uses the fasting (0 min) and 120 min post-oral glucose (OGTT) insulin and glucose concentrations. It appears to be generalizable across a spectrum of glucose tolerance and obesity. Most importantly, our data show that ISI0,120 correlates well, when applied prospectively in comparative studies, with the insulin sensitivity index obtained from the euglycemic hyperinsulinemic clamp (r=0.63, P<0.001). This correlation was demonstrably superior to other indices of insulin sensitivity such as the HOMA formula presented by Matthews, and performed comparably to the computerized HOMA index. Measurement of insulin sensitivity has traditionally been possible only in research settings because of the invasiveness and expense of the methods used. Clinical investigators have therefore sought more practical methods to obtain an index of insulin sensitivity. Such an index should approximate insulin sensitivity as measured by the euglycemic hyperinsulinemic clamp (M). We present ISI0,120, a simple yet sensitive measure of insulin sensitivity which is adaptable for use in clinical settings as well as large epidemiologic studies. Copyright (C) 2000 Elsevier Science Ireland Ltd.

Original languageEnglish
Pages (from-to)177-184
Number of pages8
JournalDiabetes Research and Clinical Practice
Volume47
Issue number3
DOIs
StatePublished - Mar 1 2000

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Insulin Resistance
Glucose Clamp Technique
Glucose Tolerance Test
Glucose
Epidemiologic Studies
Fasting
Obesity
Research Personnel
Insulin
Research

Keywords

  • Euglycemic clamp
  • Glucose uptake
  • Insulin sensitivity
  • Oral glucose tolerance test
  • Validity

ASJC Scopus subject areas

  • Endocrinology
  • Endocrinology, Diabetes and Metabolism

Cite this

Validation of the insulin sensitivity index (ISI0,120) : Comparison with other measures. / Gutt, Miriam; Davis, Catherine L.; Spitzer, Susan B.; Llabre, Maria; Kumar, Mahendra; Czarnecki, Eileen M.; Schneiderman, Neil; Skyler, Jay S; Marks, Jennifer B.

In: Diabetes Research and Clinical Practice, Vol. 47, No. 3, 01.03.2000, p. 177-184.

Research output: Contribution to journalArticle

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