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Table 1 Criteria for clinical diagnosis of the metabolic syndrome

From: Effects of long-term PM2.5 exposure on metabolic syndrome among adults and elderly in Guangdong, China

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

  1. 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