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Table 1 Definition of different premature cardiovascular disease risk factors; Tehran Lipid and Glucose study (1999–2014)

From: Incidence and associated risk factors for premature death in the Tehran Lipid and Glucose Study cohort, Iran

Risk factor Definition
 Normal BMI < 25 kg/m2
 Overweight 25 ≤ BMI < 30 kg/m2
 Obese BMI ≥30 kg/m2
Central obesity WC ≥95 cm [9]
Hypercholesterolemia TC ≥ 6.21 mmol/L or using lipid lowering drugs
Hypertension SBP ≥140 mmHg or DBP ≥90 mmHg or using any high blood pressure medications
Diabetes FPG ≥7 mmol/L, or 2 h-PG ≥11.1 mmol/L or taking anti-diabetic drugs
Low physical activity • Doing exercise or labor < 3 times a week (in first phase)
• Achieving < 600 MET (metabolic equivalent task)-minutes per week (in second phase)
Current smoker Participants who used cigarettes or other smoking implements daily, non-daily and occasionally at baseline
 Illiterate/primary 0–5 years of schooling
 Cycle/diploma 6–12 years of schooling
 Higher than diploma > 12 years of schooling
 FH-CVD Prior diagnosis of CVD in a male first degree relative < 55 years or in a female first degree relative < 65 years
  1. BMI body mass index, FPG fasting plasma glucose, 2-h PG 2-h post load glucose test, TC total cholesterol, SBP systolic blood pressure, DBP diastolic blood pressure, FH-CVD family history of premature cardiovascular disease, WC waist circumference