Skip to main content

Table 1 Baseline characteristics of the participants

From: Single-pool model urea clearance index is associated with sarcopenia and nutritional status in patients undergoing maintenance hemodialysis: a cross-sectional study

Characteristic

Total (n = 142)

Non-sarcopenia

(n = 120)

Sarcopenia

(n = 22)

p

Age, years

66.3 ± 12.6

65.2 ± 12.2

72.2 ± 13.1

0.016

Male, n (%)

92 (64.8)

78 (65)

14 (63.6)

0.902

Dialysis vintage, months

41.9 ± 33.2

42.2 ± 34.1

40.2 ± 28.4

0.797

Diabetes mellitus, n (%)

79 (55.6)

72 (60)

7 (31.8)

0.014

Creatinine, µmol/L

926.7 ± 283.1

938.2 ± 295.4

863.6 ± 196.9

0.257

eGFR, ml/min/1.73 m2

5.0 ± 4.1

5.1 ± 4.5

4.6 ± 1.2

0.618

spKt/V

1.3 ± 0.2

1.3 ± 0.2

1.5 ± 0.2

< 0.001

URR

0.7 ± 0.1

0.7 ± 0.1

0.7 ± 0.1

< 0.001

Albumin, g/L

38.6 ± 4.1

38.9 ± 4.2

36.9 ± 3.6

0.042

Prealbumin, mg/L

310.0 ± 67.8

313.8 ± 67.0

289.2 ± 70.3

0.117

hs-CRP, mg/L

10.2 ± 11.5

9.5 ± 10.0

14.4 ± 17.5

0.064

Grip strength, kg

17.6 ± 8.7

18.5 ± 8.8

12.5 ± 5.3

0.002

Pinch strength, kg

5.3 ± 2.2

5.5 ± 2.3

4.5 ± 1.4

0.061

Lean, kg

46.9 ± 11.3

48.9 ± 10.5

35.5 ± 8.0

< 0.001

PhA, °

4.4 ± 1.6

4.6 ± 1.6

3.4 ± 0.8

< 0.001

body cell mass, kg

25.1 ± 9.0

26.2 ± 8.9

17.4 ± 5.4

< 0.001

ECW, Lt

18.5 ± 3.7

15.9 ± 2.8

14.1 ± 2.7

< 0.001

ICW, Lt

19.8 ± 4.9

18.5 ± 7.5

14.0 ± 4.2

< 0.001

ECW/ICW

1.0 ± 0.2

0.9 ± 0.2

1.1 ± 0.2

< 0.001

BMI, kg/m2

23.1 ± 3.4

23.4 ± 3.4

21.4 ± 2.7

0.012

ASM, kg

22.1 ± 6.7

23.4 ± 6.4

15.1 ± 2.8

< 0.001

GNRI, score

97.5 ± 6.7

98.2 ± 6.6

94.0 ± 6.5

0.006

mCI, mg/kg/day

21.2 ± 3.2

21.4 ± 3.3

20.2 ± 2.5

0.128

  1. spKt/V, single-pool Kt/Vurea; URR, urea reduction ratio; eGFR, estimated glomerular filtration rate; hs-CRP, serum hyper-sensitive C-reactive protein; PhA, phase angle; ICW, intracellular water; ECW, extracellular water; ECW/ICW, extracellular to intracellular water ratio; BMI, body mass index; ASM, appendicular skeletal muscle mass; GNRI, Geriatric Nutritional Risk Index; mCI, modified creatinine index
  2. Continuous variables are expressed as mean ± standard deviation or median with interquartile range in case of nonnormally distributed data, and categorical variables are expressed as percentages