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Table 1 Baseline characteristics of participants categorized by blood pressure status. Data are presented as mean ± SE or weighted percentage (%) ± SE

From: The effect of uric acid and urinary sodium excretion on prehypertension: a nationwide population-based study

Characteristics

Total (n = 4200)

Normotension (n = 2646, 66.2%)

Prehypertension (n = 1554, 33.8%)

P value

Age (years)

43.0 ± 0.4

40.9 ± 0.4

46.9 ± 0.6

< 0.001

Male (%)

47.3 ± 0.9

49.7 ± 0.7

39.4 ± 1.0

< 0.001

Body mass index (Kg/m2)

23.4 ± 0.1

22.8 ± 0.1

24.5 ± 0.1

< 0.001

Current smoking (%)

51.9 ± 1.6

53.7 ± 1.9

49.6 ± 2.3

< 0.001

Systolic blood pressure (mmHg)

111.8 ± 0.3

105.7 ± 0.2

122.7 ± 0.3

< 0.001

Diastolic blood pressure (mmHg)

73.6 ± 0.2

69.7 ± 0.2

80.7 ± 0.2

< 0.001

Comorbidity

 Diabetes mellitus (%)

5.3 ± 0.4

4.4 ± 0.4

7.1 ± 0.8

< 0.001

 Cardiovascular disease (%)

1.1 ± 0.2

0.8 ± 0.1

1.7 ± 0.4

< 0.001

 Stroke (%)

0.7 ± 0.1

0.5 ± 0.1

1.1 ± 0.3

< 0.001

 Dyslipidemia (%)

9.8 ± 0.6

8.0 ± 0.6

13.0 ± 1.0

< 0.001

 Chronic kidney disease (%)

0.11 ± 0.05

0.09 ± 0.05

0.13 ± 0.08

< 0.001

White blood cell (μL− 1)

6.13 ± 0.04

6.01 ± 0.04

6.34 ± 0.06

< 0.001

Hemoglobin (g/dL)

14.19 ± 0.33

13.89 ± 0.04

14.75 ± 0.05

< 0.001

Fasting glucose (mg/dL)

96.0 ± 0.4

94.1 ± 0.4

99.5 ± 0.7

< 0.001

Blood urea nitrogen (mg/dL)

13.5 ± 0.1

13.2 ± 0.1

14.0 ± 0.1

< 0.001

Serum creatinine (mg/dL)

0.82 ± 0.004

0.79 ± 0.004

0.86 ± 0.006

< 0.001

eGFR (mL/min/1.73m2)

97.1 ± 0.4

103.5 ± 0.4

96.5 ± 0.5

< 0.001

Total cholesterol (mg/dL)

194.6 ± 0.7

190.5 ± 0.8

202.1 ± 1.1

< 0.001

Triglycerides (mg/dL)

126.9 ± 1.9

111.4 ± 1.9

155.1 ± 4.4

< 0.001

LDL-cholesterol (mg/dL)

125.5 ± 2.0

124.4 ± 2.9

126.3 ± 2.5

0.60

HDL-cholesterol (mg/dL)

52.1 ± 0.3

52.9 ± 0.3

50.6 ± 0.4

< 0.001

hs-CRP (mg/dL)

1.04 ± 0.03

0.97 ± 0.03

1.17 ± 0.05

< 0.001

Serum uric acid (mg/dL)

5.09 ± 0.03

4.91 ± 0.04

5.43 ± 0.05

< 0.001

Urinary sodium excretion (g/day)

7.54 ± 0.04

7.21 ± 0.05

7.72 ± 0.06

< 0.001

  1. SE Standard error, LDL Low-density lipoprotein, HDL High-density lipoprotein, GFR Estimated glomerular filtration rate, hs-CRP High sensitivity C reactive protein