Characteristics of study participants according to plasma glucose categories, n (%).

BMI = body mass index, CHD = coronary heart disease, DBP = diastolic blood pressure, FPG = fasting plasma glucose, HTN = hypertension, IFG = impaired fasting glucose, MTHFR = methylenetetrahydrofolate reductase, SBP = systolic blood pressure.1Means (SD); 2474 subjects with antihypertensive treatment and controlled blood pressure were included;3Obesity was defined as a BMI of ≥25kg/m2; 4Abdominal obesity was defined as a waist circumference ≥90 cm for men and ≥80 cm for women.