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Table 1 Characteristics of the 307 MLVS study participants according to quartiles of recent dietary fiber intake

From: Dietary fiber intake, the gut microbiome, and chronic systemic inflammation in a cohort of adult men

 

Quartiles of recent dietary fiber intake

1 (n = 77)

2 (n = 77)

3 (n = 77)

4 (n = 76)

Age, years

70.0 (4.1)

71.9 (4.5)

70.0 (4.0)

70.2 (4.1)

Body mass index, kg/m2

26.1 (3.2)

26.9 (4.5)

25.2 (2.9)

24.1 (3.3)

Physical activity, MET-hrs/week

48.2 (39.9)

39.3 (31.2)

52.4 (42.3)

51.1 (32.5)

Total energy intake, kcal/d

2363 (475)

2231 (481)

2312(453)

2337 (473)

Total fiber intake, g/d

16.6 (2.6)

22.0 (1.4)

26.4 (1.4)

36.2 (6.5)

Cereal fiber, g/d

6.2 (1.9)

6.9 (1.9)

7.7 (2.3)

9.5 (3.4)

Fruit fiber, g/d

3.1 (1.5)

4.4 (2.0)

5.4 (2.2)

6.7 (3.1)

Vegetable fiber, g/d

6.2 (2.4)

7.3 (2.2)

7.1 (2.2)

8.2 (2.1)

Alcohol intake, %

 Never

4.3

12.5

13.2

18.9

 Rarely

17.0

14.3

15.1

17.0

 1–6 times/week

38.3

37.5

43.4

34.0

 Daily

36.2

32.1

26.4

30.2

 More than daily

4.3

3.6

1.9

0

Antibiotic use, %

29.2

28.6

27.8

21.8

Probiotic use, %

4.3

3.6

11.5

5.8

Current smoker, %

2.6

0

1.3

0

Bristol score, %

 1–2, hard stool

14.6

18.2

7.4

12.7

 3–5, normal stool

79.2

78.2

87.0

81.8

 6–7, loose stool

6.3

3.6

5.6

5.5

Total cholesterol, mg/dL

186 (38)

182 (41)

186 (42)

178 (33)

HDL cholesterol, mg/dL

59.9 (13.7)

55.1 (15.0)

56.2 (15.3)

55.5 (12.9)

Total/HDL cholesterol ratio

3.2 (0.8)

3.4 (0.9)

3.4 (0.8)

3.3 (0.7)

C-reactive protein, mg/dL

2.1 (2.8)

1.9 (2.9)

1.3 (2.1)

1.7 (2.5)

  1. Values are means (SD) for continuous variables and percentages for categorical variables. Variables that differed across quartiles of recent intake of dietary fiber are bolded (general linear model with F test for continuous variables and Mantel-Haenszel chi-squared test for categorical variables; p < 0.05)