Table 5

Agreement of quartile assignment between the short FFQ and n-3 concentration in erythrocytes.

Quartile

Same quartile

Adjacent quartile

Misclassified


1 (n = 12)

5

5 (above)

2 (above)

2 (n = 17)

8

9 (4 above, 5 below)

0

3 (n = 12)

7

5 (below)

0

4 (n = 12)

8

4 (below)

0

Total number (n = 53)

28

23

2

%

53

43

4


Dahl et al. Nutrition Journal 2011 10:127   doi:10.1186/1475-2891-10-127

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