Document Detail


Fruit and vegetable assessment: performance of 2 new short instruments and a food frequency questionnaire.
MedLine Citation:
PMID:  12487538     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVE: To evaluate the ability of 2 new short assessment instruments and a food frequency questionnaire (FFQ) to measure intake of fruit and vegetables. The "All-Day" screener asks frequency and portion size questions about 9 food items. The "By-Meal" screener is similar, except that it asks about 2 of those 9 food items in terms of mealtime. DESIGN: Survey participants completed 4 telephone-administered 24-hour dietary recalls over 1 year, a self-administered FFQ 1 to 2 months later, and 1 of 2 self-administered screeners after an additional 7 months. SUBJECTS/SETTING: Participating were 202 men and 260 women aged 20 to 70 years living throughout the United States. STATISTICAL ANALYSES: Fruit and vegetable intakes measured by each screener and the FFQ were compared with true usual intake based on a measurement error model with 24-hour dietary recalls as the reference instrument. RESULTS: Estimates of median daily servings of fruit and vegetables were as follows: For men: True intake (5.8) vs All-Day screener (5.0), By-Meal screener (5.5), and FFQ (6.6); for women: true intake (4.2) vs All-Day screener (5.0), By-Meal screener (5.4), and FFQ (6.2). Estimated correlations between the test instruments and true intake were as follows: For men: All-Day screener (0.66), By-Meal screener (0.67), FFQ (0.68); for women: All-Day screener (0.51), By-Meal screener (0.53), and FFQ (0.54). APPLICATIONS/CONCLUSIONS: Both screeners might be useful to estimate median intakes of fruit and vegetable servings in US populations, but they might be less useful in accurately ranking individuals. More research is needed before using the screeners in ethnic or low-literacy populations.
Authors:
Frances E Thompson; Amy F Subar; Albert F Smith; Douglas Midthune; Kathy L Radimer; Lisa L Kahle; Victor Kipnis
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of the American Dietetic Association     Volume:  102     ISSN:  0002-8223     ISO Abbreviation:  J Am Diet Assoc     Publication Date:  2002 Dec 
Date Detail:
Created Date:  2002-12-18     Completed Date:  2002-12-31     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  7503061     Medline TA:  J Am Diet Assoc     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1764-72     Citation Subset:  AIM; IM    
Affiliation:
National Cancer Institute, Bethesda, MD 20892-7344, USA. Thompsof@mail.nih.gov
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MeSH Terms
Descriptor/Qualifier:
Adult
Aged
Diet*
Diet Surveys
Female
Fruit*
Humans
Male
Mental Recall
Middle Aged
Questionnaires
Vegetables*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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