Table 1.

Criteria for clinical diagnosis of the metabolic syndrome

Conditions	Recommended threshold
	For Men	For women
Elevated TG levels	≥ 1.7 mmol/l (150 mg/dl)	≥ 1.7 mmol/l (150 mg/dl)
Decreased HDL-c levels	< 1.0 mmol/l (40 mg/dl) for males	< 1.3 mmol/l (50 mg/dl)
Elevated blood pressure	Elevated blood pressure	Elevated blood pressure
Elevated FBG levels	FBG ≥ 5.6 mmol/l (100 mg/dl)	FBG ≥ 5.6 mmol/l (100 mg/dl)
Central obesity	waist circumference ≥ 90 cm	waist circumference ≥ 80 cm

Participants were considered to have MetS if they meet any three of the five following conditions (1): Elevated TG levels: ≥ 1.7 mmol/l (150 mg/dl); (2) Decreased HDL-c levels: < 1.0 mmol/l (40 mg/dl) for men; < 1.3 mmol/l (50 mg/dl) for women; (3) Elevated blood pressure (SBP ≥ 130 or DBP ≥ 85 mmHg); (4) Elevated FBG levels [FBG ≥ 5.6 mmol/l (100 mg/dl)]; (5) Central obesity was defined as elevated waist circumference: ≥ 90 cm for men; ≥ 80 cm for women