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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