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Table 1 Characteristics of the study population according to median of FEua

From: The association of urinary uric acid excretion with ambulatory blood pressure values in patients with chronic kidney disease

Variables

All

(n = 30)

FEua1

(n = 15)

FEua2

(n = 15)

P value

< 6.0%

≥6.0%

Males gender (%)

70.00

66.7

73.30

0.500

Age(years)

53.50 (35.75, 58.25)

50.00 (31.00, 58.00)

55.00 (38.00, 59.00)

0.184

BMI (kg/m2)

24.33 (21.67, 26.33)

25.01 (21.30, 29.75)

24.16 (22.49, 25.44)

0.226

eGFR (ml/min/1.73 m2)

82.45 (69.08, 98.68)

81.60 (66.00, 99.80)

82.90 (71.50, 98.30)

0.298

SUA (umol/L)

366.30 ± 96.81

396.93 ± 94.99

335.67 ± 91.55

0.083

TC (mmol/L)

4.31 (3.95, 4.95)

4.50 (4.00, 5.05)

4.28 (3.71, 5.08)

0.215

TG (mmol/L)

2.10 (1.00, 2.80)

2.50 (1.33, 3.13)

1.80 (1.00. 2.25)

0.140

24-hUV(mL)

1631.78 ± 799.96

1610.03 ± 875.23

1653.52 ± 702.19

0.882

24-hUua(mmol)

3.18 ± 1.16

2.81 ± 1.10

3.56 ± 1.13

0.077

24-hUpro(mmol)

0.33 ± 0.66

0.47 ± 0.89

0.19 ± 0.28

0.255

Cur (ml/min/1.73 m2)

6.10 ± 2.04

5.09 ± 1.99

7.19 ± 1.49**

0.003

EurGF (mg/dL/1.73 m2)

21.21 ± 5.98

17.05 ± 3.45

25.37 ± 5.01**

< 0.001

Ccr (ml/min/1.73 m2)

103.62 ± 29.54

113.72 ± 32.37

92.79 ± 22.52

0.055

24 h MSP (mmHg)

124.00 (119.00, 132.50)

125.00 (119.00, 130.00)

124.00 (119.00, 140.00)

0.256

24 h MDP (mmHg)

77.07 ± 10.52

74.00 ± 9.64

80.13 ± 10.78

0.112

mMSP (mmHg)

127.82 ± 11.93

123.79 ± 11.11

131.86 ± 11.71

0.073

mMDP (mmHg)

79.86 ± 11.23

74.93 ± 8.78

84.79 ± 11.51*

0.017

dMSP (mmHg)

129.47 ± 13.71

127.33 ± 11.90

131.60 ± 15.43

0.195

dMDP (mmHg)

77.00 (72.50, 83.00)

77.00 (68.00, 82.00)

77.00 (74.00, 86.00)

0.173

nMSP (mmHg)

116.00 (110.00, 125.50)

115.00 (110.00, 123.00)

122.00 (110.00, 136.50)

0.101

nMDP (mmHg)

72.55 ± 10.99

68.00 ± 846

77.43 ± 11.55**

0.0018

  1. *P < 0.05, **P < 0.01 vs. the FEua1 using the Independent-Sample Test (T-test) method if the variance is equal or the Tamhane’s T2 method when the variance is not equal, using Mann-Whitney U test in case of nonparametric data distribution. Numbers are mean ± SD or proportion. For age, BMI, eGFR, TC, TG, 24 h MSP, dMDP and nMDP, median and the 25th and 75th percentile are shown
  2. Abbreviations: BMI Body mass index, eGFR Estimated glomerular filtration rate, SUA Serum uric acid, TC Total cholesterol, TG Triglycerides, 24-h UV 24-h urinary volume, 24-h Uua 24-h urinary uric acid, 24-h Upro 24-h urinary protein, Cur Uric acid clearance rate, EurGF Excretion of uric acid per volume of glomerular filtration, Ccr Creatinine clearance, 24-h MSP 24-h mean systolic pressure, 24-h MDP 24-h mean diastolic pressure, mMSP Morning mean systolic pressure, mMDP Morning mean diastolic pressure, dMSP Day mean systolic pressure, dMDP Day mean diastolic pressure, nMSP Night mean systolic pressure, nMDP Night mean diastolic pressure
  3. Boldface significant differences between FEua1 and FEua2