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. Author manuscript; available in PMC: 2010 Jan 1.
Published in final edited form as: J Am Diet Assoc. 2009 Jan;109(1):36–44. doi: 10.1016/j.jada.2008.10.006

TABLE 3.

Comparison among Conditions of Accuracy of Fruit and Vegetable Food Portions where Observed and Recalled Foods Matched

School plus Home Intervention School Only Intervention Control All Participants p-value
Fruits (n=92)
 Under-report % 25.0 23.3 14.3 22.8
 Accurate (Matcha) % 47.9 56.7 71.4 54.4 0.627b
 Over-report % 27.1 20.0 14.3 22.8 0.489c
Vegetables (n=230)
 Under-report % 26.5 19.0 21.4 22.6
 Accurate (Matcha) % 43.4 41.4 37.1 40.4 0.547b
 Over-report % 30.1 39.7 41.6 37.0 0.272d
a

recall within 10% of observed

b

Cochran-Mantel-Haenszel General Association statistic for 3 conditions by 3accuracy categories

c

Fisher’s exact test for S+ and S vs. C for over-reporting vs. accurate (n=71)

d

Chi square S+ and S vs. C for over-reporting vs. accurate (n=178)