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Table 3 Baseline values and changes after three months in bioelectrical impedance analysis of body composition in the male and the female study groups.

From: Body composition in older acute stroke patients after treatment with individualized, nutritional supplementation while in hospital

  

Men

Women

  

Control (n = 26)

Intervention (n = 19)

P

Control (n = 23)

Intervention (n = 23)

P

Fat mass (kg)

Baseline

21.8 (8.0)

19.7 (8.4)

0.40

26.8 (11.0)

24.1 (7.0)

0.31

 

%

28.1 (7.0)

27.0 (4.9)

0.64

38.3 (8.5)

37.2 (8.5)

0.57

 

∆

-2.9 ± 0.6a

-3.2 ± 0.8a

0.69

-3.6 ± 0.6a

-1.4 ± 0.4a

0.005

 

∆,%

-13.0 ± 2.7

-12.3 ± 5.7

 

-12.3 ± 2.3

-6.2 ± 1.7

 

Fat-free mass (kg)

Baseline

53.9 (5.4)

51.2 (7.7)

0.17

40.6 (5.7)

39.5 (5.0)

0.47

 

%

71.9 (7.0)

73.0 (8.3)

0.64

61.6 (8.5)

62.8 (5.6)

0.57

 

∆

0.2 ± 0.6

0.8 ± 1.0

0.60

0.4 ± 0.6

0.03 ± 0.6

0.69

 

∆,%

0.6 ± 1.0

2.1 ± 1.9

 

1.2 ± 1.5

0.1 ± 1.4

 

Body cell mass (kg)

Baseline

28.1 (3.6)

27.0 (4.9)

0.38

19.6 (2.9)

19.1 (2.7)

0.52

 

%

37.5 (4.7)

38.5 (5.9)

0.38

29.9 (4.8)

30.4 (3.1)

0.67

 

∆

-0.1 ± 0.4

0.1 ± 0.7

0.77

0.3 ± 0.4

-0.03 ± 0.4

0.51

 

∆,%

0.2 ± 1.4

1.5 ± 2.4

 

2.2 ± 2.0

0.1 ± 1.9

 

Lean tissue mass (kg)

Baseline

48.9 (5.3)

46.8 (7.4)

0.28

34.9 (4.5)

34.4 (4.0)

0.65

 

%

65.3 (7.6)

66.9 (9.7)

0.53

53.3 (8.6)

54.8 (5.6)

0.48

 

∆

-0.1 ± 0.6

0.2 ± 0.9

0.76

0.4 ± 0.5

-0.1 ± 0.5

0.48

 

∆,%

0.1 ± 1.2

1.1 ± 2.0

 

1.6 ± 1.5

-0.1 ± 1.5

 

Total body water (L)

Baseline

38.7 (4.3)

36.7 (6.0)

0.21

29.7 (4.5)

28.7 (4.0)

0.40

 

%

51.5 (4.9)

52.2 (5.1)

0.63

45.1 (5.8)

45.6 (4.0)

0.71

 

∆

0.02 ± 2.4

0.5 ± 3.7

0.57

0.3 ± 2.3

0.01 ± 2.3

0.70

 

∆,%

0.3 ± 1.2

2.2 ± 2.2

 

1.4 ± 1.7

0.1 ± 1.6

 

Intracellular water (L)

Baseline

21.1 (2.9)

20.3 (3.7)

0.42

15.8 (2.4)

15.3 (2.2)

0.45

 

%

28.1 (3.1)

28.9 (3.5)

0.45

24.0 (2.9)

24.4 (2.0)

0.64

 

∆

-0.5 ± 1.9

-0.3 ± 2.1

0.86

0 ± 1.3

-0.2 ± 1.3

0.69

 

∆,%

-1.5 ± 1.5

-0.9 ± 2.2

 

0.4 ± 1.8

-0.9 ± 1.7

 

Extracellular water (L)

Baseline

17.5 (1.7)

16.4 (2.5)

0.084

13.8 (2.1)

13.3 (1.9)

0.37

 

%

23.4 (2.3)

23.3 (2.2)

0.96

21.0 (2.9)

21.2 (2.1)

0.79

 

∆

0.5 ± 0.2

0.9 ± 0.4

0.41

0.3 ± 0.2

0.2 ± 0.2

0.76

 

∆,%

3.0 ± 1.3

6.1 ± 2.5

 

2.4 ± 1.8

1.3 ± 1.7

 
  1. Baseline values are presented as mean (SD). Change is presented as mean ± SEM. According to the manual of the BIS device "fat-free mass" comprises bone, skin, organs, blood, muscles, excess fluid and adipose water, "fat mass" comprises adipose lipids and essential lipids, "lean tissue mass" comprises bone, skin, organs, blood and muscles and "body cell mass" comprises skin, organs, blood and muscles. ∆: change from baseline to three months. aSignificant change within the group.