Table 1 Overall data of the study population

Males/Females

59.4%

40.6%

55.7%

44.3%

63.9%

36.1%

0.336

Age median (yrs) (min-max)

69 (18–90)

71 (18–90)

67 (26–89)

0.020

RRT vintage (yrs) (min-max)

6.7 (0.07–43.5)

4.3 (0.07–43.5)

10.3 (0.5–36.9)

< 0.001

Charlson median (min-max)

8 (2–16)

9 (2–16)

6 (2–12)

< 0.001

MIS median (min-max)

7 (1–27)

7 (1–23)

6 (2–27)

0.020

SGA: A

61.1%

49.5%

74.7%

0.002

SGA: B

33.9%

45.4%

20.5%

SGA: C

5.0%

5.2%

4.8%

HD-HDF (%)

HD: 40.0%

HDF: 60.0%

HD: 23.7%

HDF: 76.3%

HD: 59.0%

HDF: 41.0%

< 0.001

BMI Kg/m2 median (min-max)

24.3 (14.6–47.1)

26.2 (16.4–47.1)

22.6 (14.6–31.8)

< 0.001

BMI < 20

32 (18.0%)

11 (11.6%)

21 (25.3%)

< 0.001

BMI 20–25

66 (37.1%)

26 (27.4%)

40 (48.2%)

BMI 25–30

56 (31.5%)

38 (40.0%)

18 (21.7%)

BMI > = 30

24 (13.5%)

20 (21.1%)

4 (4.8%)

Albumin (g/dl) median (min-max)

3.4 (2.0–4.5)

3.2 (2.6–3.8)

3.7 (2.0–4.5)

< 0.001

Albumin < 3

23 (12.8%)

22 (22.7%)

1 (1.2%)

< 0.001

Albumin < 3.5

99 (55.0%)

78 (80.4%)

21 (25.3%)

< 0.001

BUN (mg/dl) median (min-max)

60.0 (24.4–105)

56.7 (24.4–100)

63.0 (32.0–105)

0.015

Creatinine (mg/dl) median (min-max)

9.1 (2.7–15.0)

8.8 (2.7–15.0)

10.2 (3.6–14.8)

0.003

Cholesterol (mg/dl) median (min-max)

158 (49–263)

162.8 (49–249)

157 (67–263)

0.978

Kt/V median (min-max)

1.6 (0.7–2.3)

1.5 (0.7–2.2)

1.6 (0.8–2.3)

0.005

nPCR (g/Kg/day) median (min-max)

1.04 (0.5–1.8)

0.9 (0.5–1.7)

1.1 (0.6–1.8)

0.002