Table 1.

Established Criteria Proposed for Clinical Diagnosis of Metabolic Syndrome

Clinical measure	WHO (1998)	IDF (2005)	Joint IDR/NHLBI/AHA
Insulin resistance	IGT, IFT, T2DM, or lowered insulin sensitivity* Plus any two of the following	None	None But any three of the following five features
Body metric	Men: waist-to-hip ratio >0.90 Women: waist-to-hip ratio >0.85 and/or BMI >30kg/m2	Increased WC (population specific) plus any two of the following	Population- and country-specific definitions
Lipid	TG 150 mg/dL and/or HDL-C <35 mg/dL in men or <39 mg/dL in women	TG > 150 mg/dL or on TG Rx	≥150 mg/dL (1.7 mmol/L)
		HDL-C <40 mg/dL in men or <50 mg/dL in women or on HDL-C Rx	<40 mg/dL (1.0 mmol/L) in males; <50 mg/dL (1.3 mmol/L) in females
Blood pressure	≥140/90 mmHg	≥130 mmHg systolic or 85 mmHg diastolic or on hypertension Rx	Systolic ≥130 and/or diastolic ≥85 mmHg
Glucose	IGT, IFG, or T2DM	≥100 mg/dL (includes diabetes)	≥100 mg/dL
Other	Microalbuminuria

MS criteria as defined by WHO, IDF, and the joint IDR/NHLBI/AHA are compared. T2DM indicates type 2 diabetes mellitus; WC, waist circumferences; BMI, body mass index; and TG, triglycerides. All other abbreviations are in text.

^*Insulin sensitivity measured under hyperinsulinemic euglycemic conditions, glucose uptake below lowest quartile for background population under investigation.