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Table 2—

Sensitivity, specificity, positive predictive value, and negative predictive value of various definitions in predicting insulin resistance

Number of abnormal factorsSensitivitySpecificityPositive predictive valueNegative predictive value
≥1 84 16 34 67 
≥2 64 76 57 80 
≥3 20 92 56 69 
≥4 98 50 67 
Number of abnormal factorsSensitivitySpecificityPositive predictive valueNegative predictive value
≥1 84 16 34 67 
≥2 64 76 57 80 
≥3 20 92 56 69 
≥4 98 50 67 

Insulin resistance is defined as glucose disposal rate <12 mg·kg−1·min−1. Abnormal factors considered in the ATP III criteria are abdominal obesity, elevated blood pressure level, elevated triglycerides, decreased HDL cholesterol, and elevated fasting glucose.

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