Table 1 Baseline patient characteristics, by arm and age.

From: Age and sex differences in the effectiveness of intradialytic resistance training on muscle function

Variable

Experimental condition EXG (n = 57)

Control condition CNG (n = 33)

MA (n = 25)

YO (n = 21)

OO (n = 11)

p value

MA (n = 6)

YO (n = 12)

OO (n = 15)

p value

Age in years (M, SD)

47.6 (10.2)

65.5 (3.3)

76.2 (3.7)

< 0.001*

51.9 (5.1)

65.2 (3.1)

75.6 (4.5)

< 0.001*

Body weight in kg (M, SD)

77.9 (13.0)

81.8 (20.3)

68.7 (15.5)

0.111

63.3 (8.1)

75.5 (12.4)

68.0 (17.2)

0.202

Body mass index in kg/m2 (M, SD)

26.6 (5.2)

28.1 (6.7)

25.2 (4.7)

0.384

22.8 (3.3)

26.2 (4.2)

24.2 (5.5)

0.326

Dialysis adequacy in Kt/V (M, SD)

1.5 (0.3)

1.6 (0.4)

1.6 (0.4)

0.859

2.0 (0.3)

1.9 (0.4)

2.1 (0.3)

0.499

Over-hydration index in % (M, SD)

11.8 (9.6)

12.2 (5.6)

12.0 (3.5)

0.983

9.9 (7.2)

14.3 (5.0)

11.3 (7.8)

0.360

C-reactive protein in mg/l (M, SD)

10.3 (14.7)

12.6 (13.8)

11.7 (5.2)

0.837

2.9 (3.5)

8.4 (9.2)

12.3 (14.3)

0.236

iPTH in pg/ml (M, SD)

495.4 (436.9.0)

362.9 (281.3)

196.2 (113.7)

0.057

186.2 (114.3)

467.5 (560.4)

370.7 (338.9)

0.407

Haemoglobin in g/l (M, SD)

112.0 (14.2)

112.0 (11.3)

112.2 (14.7)

0.999

114.8 (5.9)

111.8 (17.0)

113.2 (13.9)

0.913

Albumin in g/l (M, SD)

39.4 (2.6)

39.1 (3.2)

39.6 (2.0)

0.882

37.3 (1.0)

35.8 (5.7)

37.6 (4.4)

0.567

Ferritin in ng/ml (M, SD)

558.8 (451.7)

609.3 (466.7)

649.6 (749.3)

0.881

878.5 (355.1)

841.4 (358.1)

834.9 (352.8)

0.967

Phosphates in mml/l (M, SD)

1.8 (0.5)

1.6 (0.3)

1.9 (0.5)

0.078

1.4 (0.3)

1.5 (0.6)

1.4 (0.4)

0.710

Calcium in mmol/l (M, SD)

2.2 (0.2)

2.2 (0.2)

2.0 (0.3)

0.128

2.3 (0.1)

2.2 (0.1)

2.4 (0.1)

0.367

Potassium in mEq/l (M, SD)

5.1 (0.7)

5.0 (0.6)

5.5 (1.0)

0.167

5.5 (0.6)

5.1 (0.8)

5.1 (1.0)

0.583

Sodium in mEq/l (M, SD)

138.2 (3.8)

138.0 (2.4)

138.0 (2.9)

0.949

138.7 (2.7)

137.8 (2.2)

138.6 (2.9)

0.664

Hip extension in N (M, SD)

178.6 (55.0)

171.3 (66.3)

113.7 (53.4)

0.011#

160.3 (57.0)

147.8 (52.6)

133.8 (36.5)

0.476

  1. iPTH intact parathyroid hormone, N Newton, EXG experimental group, CNG control group, MA middle-aged, YO younger-old, OO older-old group. Data are presented as mean (M) ± standard deviation (SD), p values determined by analysis of variance tests. #Differences between groups significant at p < 0.05. *Differences between groups significant at p < 0.001.
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