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Table 1 Demographic, laboratory parameters and KDQoL subscales of patients with CKD 3 from C-STRIDE Study

From: Clinical features and CKD-related quality of life in patients with CKD G3a and CKD G3b in China: results from the Chinese Cohort Study of Chronic Kidney Disease (C-STRIDE)

Characteristics

CKD G3a (n = 499)

CKD G3b (n = 778)

Missing value

p-value

Age (years)

49.84 ± 12.76

52.86 ± 12.71

0

<0.001

Men

355 (71.1%)

458 (58.8%)

0

<0.001

Duration of CKD (years)

1 (0,4)

1 (0,4)

0

0.45

Current smoking

199 (40.9%)

313 (41.9%)

43

0.72

Drinkers (≥1 times per day)

15 (3.1%)

23 (3.1%)

55

0.10

High school education (%)

315 (64.0%)

398 (51.8%)

17

<0.001

Body mass index (kg/m2)

24.71 ± 3.37

24.78 ± 4.70

102

0.74

Systolic blood pressure (mmHg)

129.54 ± 16.67

132.01 ± 17.16

143

0.02

Diastolic blood pressure (mmHg)

82.29 ± 15.56

81.65 ± 10.74

143

0.42

Hypertension

400 (80.2%)

631 (81.1%)

0

0.68

Serum total cholesterol (mmol/L)

4.89 (4.00,5.97)

4.68 (3.86,5.79)

75

0.04

Serum LDL cholesterol (mmol/L)

2.67 ± 0.94

2.66 ± 1.00

97

0.82

Serum HDL cholesterol (mmol/L)

1.07 ± 0.31

1.13 ± 0.41

96

0.01

Hyperlipidemia

155 (33.8%)

214 (29.2%)

86

0.10

Serum creatinine (μmol/L)

129.50 ± 18.84

163.27 ± 27.49

0

<0.001

eGFR (mL/min/1.73 m2)

51.61 ± 4.24

37.13 ± 4.33

0

<0.001

Fasting Blood glucose (mmol/L)

5.28 ± 1.73

5.41 ± 1.86

77

0.25

Diabetes mellitus

130 (26.1%)

216 (27.8%)

0

0.50

Cardiovascular disease

128 (25.9%)

218 (28.5%)

17

0.32

Uric acid (μmol/L)

402.46 ± 105.51

426.14 ± 111.37

18

<0.001

Hyperuricemia

256 (52.0%)

471 (61.4%)

18

0.001

Albumin

39.81 ± 6.96

39.56 ± 6.60

47

0.52

ACR (mg/g creatinine)

315.37 (63.67,724.88)

340.19 (74.78,860.03)

175

0.19

Hematuria

230 (53.4%)

332 (50.2%)

184

0.30

Hemoglobin

134.17 ± 21.68

127.56 ± 46.83

110

0.004

Anemia

83 (17.9%)

185 (26.4%)

110

<0.001

Serum Bicarbonate

26.49 ± 4.20

25.46 ± 3.83

123

<0.001

Metabolic Acidosis

109 (21.8%)

180 (23.1%)

0

0.59

Serum calcium

2.24 ± 0.22

2.25 ± 0.22

49

0.71

Serum phosphorus

1.17 ± 0.40

1.18 ± 0.25

58

0.84

Serum iPTH

47.95 ± 28.94

59.15 ± 37.74

240

<0.001

CKD-MBD

398 (79.8%)

636 (81.8%)

0

0.38

Hs-CRP

1.5 (0.66,3.33)

1.4 (0.59,3.72)

225

0.51

Symptoms and Problems (S)

90.88 ± 11.05

89.30 ± 11.52

70

0.02

Effects of the Kidney disease (E)

88.29 ± 11.94

86.49 ± 13.45

70

0.02

Burden of the Kidney disease (B)

55.86 ± 26.40

52.10 ± 27.64

70

0.02

SF-12 Physical Functioning (PCS)

46.56 ± 8.16

44.51 ± 9.22

70

<0.001

SF-12 Mental Functioning (MCS)

51.18 ± 8.38

50.2 ± 9.20

70

0.06

  1. Continuous variables are presented as mean ± SD, or median with interquartile ranges. Categorical data are presented as numbers (n) of patients
  2. Abbreviations: CKD Chronic kidney disease, LDL Low-density lipoprotein, HDL High-density lipoprotein, eGFR estimated glomerular filtration rate, ACR Albumin to creatinine ratio, CKD-MBD CKD-mineral and bone disorders, Hs-CRP high-sensitivity C-reactive protein