Table 1.

Comparison of definitions of the metabolic syndrome.

WHO	EGIR	NCEP	IDF
Presence of one of the following:	Insulin resistance AND two or more of the following:	Presence of three of the following (2001):	Central obesity(13) AND any two of the following:
(i) DM	(i) Central obesity(4)	(i) Central obesity(6)	(i) Raised TG(14)
(ii) IGT	(ii) Dyslipidemia(5)	(ii) Dislipidemia(7)	(ii) ↓ HDL(15)
(iii) IFG	(iii) BP ≥ 140/90	(iii) BP ≥ 130/85	(iii) ↑ BP(16)
(iv) Insulin resistance	(iv) FBG ≥ 6.1 mmol/L (110 mg/dL)	(iv) FPG ≥ 6.1 mmol/L (110 mg/dL)	(iv) ↑ FBG(17)
AND two of the following:		Update (2004):
(i) BP ≥ 140/90		(i) Elevated waist circumferences(8)
(ii) Dyslipidemia(1)		(ii) Elevated TG(9)
(iii) Central obesity(2)		(iii) Reduced HDL(10)
(iv) Microalbuminuria(3)		(iv) Elevated BP(11)
		(v) Elevated fasting glucose(12)

BP: blood pressure, DM: diabetes mellitus, EGIR: European Group for the Study of Insulin Resistance, FBG: fasting blood glucose, HDL: high density lipoproteins, IDF: International Diabetes Federation, IFG: impaired fasting glucose, IGT: impaired glucose tolerance, NCEP: US National Cholesterol Education Program, TG: triglycerides, WHO: World Health Organization.

⁽¹⁾TG ≥ 1.695 mmol/L and HDL ≤ 0.9 mmol/L (male), ≤1.0 mmol/L (female).

⁽²⁾Waist/hip ratio > 0.90 (male) >0.85 (female), or body mass index > 30 kg/m².

⁽³⁾Urinary albumin excretion ratio ≥ 20 μg/min or albumin/creatinine ratio ≥ 30 mg/g.

⁽⁴⁾Waist circumference ≥ 94 cm (male), ≥80 cm (female).

⁽⁵⁾TG ≥ 2.0 mmol/L and/or HDL < 1.0 mmol/L or treated for dyslipidemia.

⁽⁶⁾Waist circumference ≥ 102 cm or 40 inches (male), ≥88 cm or 36 inches (female).

⁽⁷⁾TG ≥ 1.7 mmol/L (150 mg/dL) and HDL < 40 mg/dL (male), <50 mg/dL (female).

⁽⁸⁾Men, greater than 40 inches (102 cm) and women, greater than 35 inches (88 cm).

⁽⁹⁾Equal to or greater than 150 mg/dL (1.7 mmol/L).

⁽¹⁰⁾Men, Less than 40 mg/dL (1.03 mmol/L) and women, Less than 50 mg/dL (1.29 mmol/L).

⁽¹¹⁾Equal to or greater than 130/85 mm Hg or use of medication for hypertension.

⁽¹²⁾Equal to or greater than 100 mg/dL (5.6 mmol/L) or use of medication for hyperglycemia.

⁽¹³⁾Defined as waist circumference with ethnicity specific values (If BMI is >30 kg/m², central obesity can be assumed and waist circumference does not need to be measured).

⁽¹⁴⁾TG > 150 mg/dL (1.7 mmol/L), or specific treatment for this lipid abnormality.

⁽¹⁵⁾HDL < 40 mg/dL (1.03 mmol/L) in males, <50 mg/dL (1.29 mmol/L) in females, or specific treatment for this lipid abnormality.

⁽¹⁶⁾systolic BP > 130 or diastolic BP > 85 mm Hg, or treatment of previously diagnosed hypertension.

⁽¹⁷⁾FPG > 100 mg/dL (5.6 mmol/L), or previously diagnosed type 2 diabetes.