Table 4

Daily median intakes of food groups (g day-1) estimated by the two food frequency questionnaires (FFQs) and twelve 24-hour recalls, and correlations between the two dietary methods a

Repeat 24- hour recalls

Median

FFQ 1

Median

FFQ 2

Median

Spearman's r 24-hr recalls vs. FFQ 1

Spearman's r 24-hr recalls vs. FFQ 2


Cereals (g)

469.7

492.4

487.0 ab.

0.39

0.42

Poultry (g)

48.1

36.6

55.1 ab

0.30

0.37

Red meat (g)

16.9

14.1

15.2

0.55

0.61

Fish (g)

29.5

23.5

27.7

0.38

0.53

Eggs (g)

7.4

6.7

6.4

0.56

0.54

Fruits (g)

394.4

430.0

373.3 ab

0.27

0.30

Dark green leafy and yellow vegetables (g)

85.8

89.0

97.9 b

0.53

0.45

Other vegetables (g)

50.1

57.1

56.5

0.46

0.45

Peas and beans (g)

19.4

21.5

22.4

0.44

0.39


a FFQ1 significantly different from FFQ 2.

b FFQ intake significantly different from repeat recalls.

Jackson et al. Nutrition Journal 2011 10:28   doi:10.1186/1475-2891-10-28

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