Journal Article

Measuring Dietary Change in a Diet Intervention Trial: Comparing Food Frequency Questionnaire and Dietary Recalls

Cynthia A. Thomson, Anna Giuliano, Cheryl L. Rock, Cheryl K. Ritenbaugh, Shirley W. Flatt, Susan Faerber, Vicky Newman, Bette Caan, Ellen Graver, Vern Hartz, Robin Whitacre, Felicia Parker, John P. Pierce and James R. Marshall

in American Journal of Epidemiology

Published on behalf of Johns Hopkins Bloomberg School of Public Health

Volume 157, issue 8, pages 754-762
Published in print April 2003 | ISSN: 0002-9262
Published online April 2003 | e-ISSN: 1476-6256 | DOI:

      Measuring Dietary Change in a Diet Intervention Trial: Comparing Food Frequency Questionnaire and Dietary Recalls

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Measurement of dietary change was assessed in a systematic quota subsample (n = 397) of women recruited into the Women’s Healthy Eating and Living Study between 1996 and 1998, a multicenter, randomized dietary intervention trial among breast cancer survivors. Women from the intervention and comparison arms completed the Arizona Food Frequency Questionnaire (AFFQ) and 24-hour dietary recalls at baseline (prerandomization) and at year 1 (postrandomization). Both dietary measurement methods demonstrated significant changes in intake of key intervention-associated nutrients at year 1 in the intervention group subjects compared with minimal or no change in the comparison group subjects. The reliability of the AFFQ and recalls was measured in the comparison group and showed correlations of 0.63 and 0.43, respectively. Both instruments captured differences in dietary intake associated with the diet intervention. These results demonstrate the utility of using a multimode, multimethod approach (AFFQ and 24-hour dietary recalls) to measure differences in self-reported dietary intake over time as shown in this dietary intervention trial being conducted among breast cancer survivors.

Keywords: breast neoplasms; clinical trials; food habits; questionnaires; recall; Abbreviations: AFFQ, Arizona Food Frequency Questionnaire; CSFII, Continuing Survey of Food Intake by Individuals; FFQ, food frequency questionnaire; WHEL, Women’s Healthy Eating and Living.

Journal Article.  5784 words. 

Subjects: Public Health and Epidemiology

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