Table 4

Cross-classification of subjects according to intake estimates

Classified correctly

Classified correctly or adjacent

Grossly misclassified by 3 categories

% energy from added sugar

40

81

3

% energy from carbohydrates

39

81

1

% energy from fat

36

78

4

% energy from protein

38

86

2

Intakes of

antioxidants

48

84

4

vitamin C

33

70

6

β-carotene

36

75

4

berries

37

78

6

chocolate

45

86

1

coffee

59

96

1

fruits

49

84

1

fruit and berry juices

44

86

2

nuts

44

82

1

tea

64

96

1

vegetables

39

74

6

wine

54

93

1

Percent of participants classified correctly, correctly and adjacent and grossly misclassified, respectively, according to percent energy form macro nutrients and intakes of antioxidants and antioxidant-rich foods and beverages, n = 147.

Carlsen et al. Nutrition Journal 2010 9:37   doi:10.1186/1475-2891-9-37