Table 1 Baseline characteristics of the FITNESS cohort and subgroup with valid ultrasound measurements

Male

138

61.9

FP

76

34.1

FI

129

57.9

EFS

111

49.8

CFS

109

48.9

Albumin^a

39

35–42

MoCA^a

22

18–25

Age^a

63

54–74

BMI^a

27.0

23.4–32.1

Charlson Index^a,b

5

3–6

HD Vintage (months)^a

33

14–65

Kt/V^a

1.58

1.37–1.82

 White

136

61.0

 South Asian

51

22.9

 Black

32

14.4

 Other

4

1.8

 Current

33

14.8

 Ex

67

30.0

 Never

123

55.2

 No

195

87.4

 Yes

28

12.6

 Employed

32

14.4

 Unemployed

74

33.2

 Retired

117

52.5

 Unskilled Manual

92

43.4

 Skilled Manual

32

15.1

 Clerical

25

11.8

 Managerial

31

14.6

 Professional

32

15.1

 High School

154

69.1

 College/6th form

47

21.1

 University

22

9.9

 Own Home

219

98.2

 Warden-Controlled

3

1.4

 Residential Home

1

0.5

 Nursing Home

0

0.0

 No

209

94.1

 Yes

13

5.9

 Inactive

184

82.5

 Moderately Inactive

18

8.1

 Moderately Active

5

2.2

 Active

16

7.2

 1

101

45.3

 2

29

13.0

 3

36

16.1

 4

19

8.5

 5

22

9.9

 Unknown

16

7.2