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Table 4 The proportions of below estimated average requirement (EAR) among cancer survivors and cancer-free individuals

From: Dietary supplement use among cancer survivors and the general population: a nation-wide cross-sectional study

Nutrient

Cancer survivors

Cancer-free individuals

P valueb

P valuec

% Below EAR (SE)

 

% Below EAR (SE)

 

Food only

Foods and supplements

% Changea

Food only

Foods and supplements

% Changea

All (n)

400

10,387

  

 Calcium (mg/d)

64.2 (3.2)

61.2 (3.1)

4.7

64.7 (0.7)

63.0 (0.7)

2.6

0.88

0.57

 Phosphate (mg/d)

9.8 (1.8)

9.7 (1.8)

1.0

7.9 (0.3)

7.9 (0.3)

0.0

0.27

0.28

 Iron (mg/d)

18.6 (2.5)

17.2 (2.5)

7.5

22.1 (0.5)

21.1 (0.5)

4.5

0.20

0.15

 Vitamin A (μg RE/d)

44.0 (3.1)

40.3 (3.1)

8.4

37.3 (0.7)

35.6 (0.7)

4.6

0.03

0.11

 Thiamin (mg/d)

40.4 (3.2)

36.3 (3.2)

10.2

32.1 (0.6)

29.3 (0.6)

8.7

0.01

0.02

 Riboflavin (mg/d)

56.3 (3.1)

49.1 (3.1)

12.8

49.4 (0.7)

45.6 (0.7)

7.7

0.02

0.25

 Niacin (mg/d)

35.4 (3.0)

31.6 (2.7)

10.7

27.8 (0.6)

25.7 (0.6)

7.6

0.01

0.03

 Folate (μg/d)

46.8 (3.3)

43.5 (3.4)

7.1

47.0 (0.7)

43.7 (0.6)

7.0

0.93

0.94

 Vitamin C (mg/d)

42.2 (3.2)

35.9 (3.0)

14.9

42.3 (0.7)

37.8 (0.7)

10.6

0.96

0.51

Among users (n)

141

2651

  

 Calcium (mg/d)

68.7 (5.0)

59.5 (5.2)

13.4

58.7 (1.3)

50.8 (1.3)

13.5

0.06

0.11

 Phosphate (mg/d)

7.0 (2.7)

6.7 (2.7)

4.3

5.7 (0.6)

5.5 (0.6)

3.5

0.63

0.64

 Iron (mg/d)

19.5 (4.6)

15.1 (4.2)

22.6

18.2 (1.0)

13.6 (0.9)

25.3

0.79

0.71

 Vitamin A (μg RE/d)

46.4 (5.4)

35.4 (5.1)

23.7

33.0 (1.2)

24.9 (1.1)

24.6

0.01

0.03

 Thiamin (mg/d)

42.9 (5.5)

30.7 (5.5)

28.4

30.8 (1.2)

18.1 (1.0)

41.2

0.02

0.01

 Riboflavin (mg/d)

63.7 (5.3)

42.1 (5.3)

33.9

45.3 (1.3)

28.2 (1.0)

37.8

0.001

0.01

 Niacin (mg/d)

36.4 (5.8)

25.0 (5.0)

31.3

26.4 (1.1)

16.6 (0.9)

37.1

0.06

0.05

 Folate (μg/d)

52.7 (5.5)

42.8 (5.6)

18.8

43.3 (1.3)

28.4 (1.1)

34.4

0.10

0.01

 Vitamin C (mg/d)

44.6 (5.4)

25.7 (4.5)

42.4

38.6 (1.3)

18.4 (0.9)

52.3

0.27

0.07

  1. Abbreviations: RE retinol equivalent, DFE dietary folate equivalents
  2. aCalculated by dividing subtracted values (% below EAR from foods only – foods and supplements) by % below EAR from foods only
  3. bRao-Scott chi-square p values were obtained using PROC SURVEYFREQ to compare the proportion of below EAR from foods between survivors and cancer-free individuals
  4. cRao-Scott chi-square p values were obtained using PROC SURVEYFREQ to compare the proportion of below EAR from foods and supplements between survivors and cancer-free individuals