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Table 1—

Classification of glucose tolerance states

StateFPG level (mg/dl)2-h plasma glucose in OGTT (mg/dl)*
IFG 100–125 <200 
    Isolated IFG 100–125 <140 
IGT <126 140–199 
    Isolated IGT <100 140–199 
Combined IFG/IGT 100–125 140–199 
NGT <100 <140 
StateFPG level (mg/dl)2-h plasma glucose in OGTT (mg/dl)*
IFG 100–125 <200 
    Isolated IFG 100–125 <140 
IGT <126 140–199 
    Isolated IGT <100 140–199 
Combined IFG/IGT 100–125 140–199 
NGT <100 <140 
*

Standard 75-g OGTT.

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