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Table 1 Baseline characteristics of the participants

From: Dietary L-arginine intake and the incidence of coronary heart disease: Tehran lipid and glucose study

  Participants with CHD outcome (n = 57) Participants without CHD outcome (n = 2223) P value Whole study population (n = 2280)
Age (y) 59.2 ± 9.7 37.6 ± 13.1 0.001 38.2 ± 13.4
Male (%) 59.6 42.3 0.007 42.8
Smoking (%) 22.8 11.5 0.003 11.7
Body mass index (m 2 /kg) 28.4 ± 4.4 26.5 ± 4.8 0.004 26.5 ± 4.8
Waist circumference (cm) 97.2 ± 10.1 87.8 ± 13.3 0.001 88.0 ± 13.4
Serum creatinine (μmol/L) 99.5 ± 16.7 91.7 ± 13.5 0.001 91.9 ± 13.7
eGFR (ml/min/1.73 m2) 78.7 ± 13.0 79.8 ± 16.1 0.61 79.8 ± 16.1
Systolic blood pressure (mm Hg) 130 ± 17.4 109 ± 14.9 0.001 110 ± 15.3
Diastolic blood pressure (mm Hg) 80.0 ± 10.6 72.4 ± 10.3 0.001 72.6 ± 10.3
Fasting blood glucose (mg/dL) 106 ± 39.9 88.0 ± 16.6 0.001 88.9 ± 17.7
Total cholesterol (mg/dL) 216 ± 38.0 182 ± 36.8 0.001 183 ± 37.3
Serum triglycerides (mg/dL) 190 ± 107 132 ± 77.0 0.001 133 ± 79.0
LDL-C (mg/dL) 140 ± 31.2 112 ± 31.4 0.001 113 ± 31.6
HDL-C (mg/dL) 40.2 ± 8.0 43.3 ± 10.4 0.025 43.2 ± 10.4
TG/HDL-ratio 5.0 ± 3.1 3.4 ± 2.6 0.001 3.5 ± 2.6
Diabetes (%) 14.3 3.9 0.003 4.2
Hypertension (%) 43.9 8.2 0.001 9.1
Chronic kidney disease (%) 4.4 6.7 0.41 6.7
  1. Data are mean ± SD unless stated otherwise (independent t-test for continuous variables and chi-square test for dichotomous variables was used