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Table 2 Characteristics of participants

From: Applicability of Creatinine-based equations for estimating glomerular filtration rate in elderly Chinese patients

Characteristics

Whole Cohort

Male

Female

P

Participants

612

386

226

 

Age (Years)

73 (68,80)

75 (69,82)

72 (68,77)

0.000*

BSA(m2)

1.61 (1.48,1.74)

1.69 (1.56,1.81)

1.52 (1.42,1.52)

0.000*

Scr (μmol/l)

119.62 (86.00,190.80)

132.60 (89.60,183.71)

106.50 (74.0,205.8)

0.001*

Bun (mmol/l)

8.18 (6.10,12.18)

8.10(6.17,11.52)

8.26 (6.00,13.13)

0.927*

Alb(g/l)

34.80 (30.70,38.30)

34.60 (30.70,38.00)

35.10 (30.38,39.00)

0.439*

Year group, n(%)

65–79 Year

444 (70.13)

256 (65.20)

188 (79.36)

0.000**

≥80

168 (29.87)

130 (34.80)

38 (20.64)

 

mGFR (ml/min/1.73 m2)

42.1 (27.4,62.1)

43.7 (27.9,61.2)

40.1 (25.6,59.2)

0.080*

mGFR, n(%)

  ≥ 90 ml/min/1.73 m2

32 (5.2)

21 (5.4)

11 (4.9)

 

 60–89 ml/min/1.73 m2

126 (20.6)

82 (21.2)

44 (19.5)

 

 30–59 ml/min/1.73 m2

266 (43.5)

175 (45.3)

91 (40.3)

 

 15–29 ml/min/1.73 m2

146 (23.9)

90 (23.3)

56 (24.8)

 

  < 15 ml/min/1.73 m2

42 (6.9)

18 (4.7)

24 (10.6)

 

eGFR (ml/min/1.73 m2)

 CKD-EPI equation

44.4 (27.1,67.0)

44.8 (29.3,65.8)

43.8 (20.0,69.4)

0.390*

 LMR equation

41.1 (23.9,59.9)

40.9 (25.0,60.0)

41.5 (18.8,63.6)

0.799*

 BIS1 equation

43.6 (30.0,59.5)

43.4 (31.8,57.7)

44.3 (25.0,61.0)

0.778*

 FAS equation

41.8 (27.7,59.3)

42.1 (29.6,58.8)

41.3 (21.8,60.6)

0.391*

 EKFC equation

41.9 (26.4,61.6)

42.2 (28.1,61,1)

40.8 (19.6,64.5)

0.305*

Causes of kidney disease, n(%)

 Primary glomerular disease

101 (16.5)

49 (12.7)

52 (23.0)

0.000**

 Diabetic nephropathy

164 (26.8)

105 (27.2)

59 (26.1)

0.000**

 Hypertensive nephrosclerosis

84 (13.7)

60 (15.5)

24 (10.6)

0.000**

 Obstructive nephropathy

100 (16.3)

49 (12.7)

51 (22.6)

0.000**

 Others

163 (26.6)

123 (31.9)

40 (17.7)

0.000**

Comorbid condition (%)

 Hypertension

460 (75.2)

286 (74.1)

174 (77.0)

0.000**

 Diabetes

293 (47.9)

189 (49.0)

104 (46.2)

0.000**

 Coronary heart disease

225 (36.8)

159 (41.2)

66 (29.2)

0.000**

 Cerebrovascular disease

133 (21.7)

103 (26.7)

30 (13.3)

0.000**

  1. All data were collected from each individual in this study unless otherwise stated. Values for continuous variables are presented as the median and inter-quartile range
  2. Abbreviations: BSA Body surface area, Scr Serum creatinine, Bun Blood urea nitrogen, Alb Albumin, mGFR Measured glomerular filtration rate, eGFR Estimated glomerular filtration rate, CKD-EPI Chronic kidney disease epidemiology collaboration, LMR Lund-Malmö Revised, BIS1 Berlin Initiative Study 1, FAS Full age spectrum equation, EKFC European Kidney Function Consortium. Reference range: Scr, 57-110 μmol/l in male and 53-97 μmol/l in female; Bun, 3.60–9.50 mmol/l; Alb, 44.00–55.00 g/L.
  3. * Non-parametric t-test, **Chi-square test, comparing between male and female