Document Detail


Separate estimates of portion size were not essential for energy and nutrient estimation: results from the Southern Community Cohort food-frequency questionnaire pilot study.
MedLine Citation:
PMID:  17288621     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVE: A food-frequency questionnaire (FFQ) was developed to assess habitual dietary intake in the Southern Community Cohort Study (SCCS), a prospective epidemiological study to analyse disparities in cancer and other chronic diseases between African-Americans and Whites. DESIGN: Frequency and portion size estimates were obtained for each of 104 foods. Daily intakes of 13 food groups, energy and 18 nutrients were computed. Each participant's rank and quintile classification of nutrient intakes was determined with and without the use of the subject's reported portion size. SUBJECTS: The sample was obtained from the SCCS pilot study conducted in Tennessee, Mississippi and Florida, and consisted of 209 adults, 54% African-American, with a mean (standard deviation) age of 57.1 (12.5) years. RESULTS: Correlations between the ranks from the two methods of estimation were high, ranging from 0.66 to 0.94 for food groups and 0.81 to 0.94 for nutrients. Pearson correlations were similarly high for food groups and nutrients. Concordance in exact quintile rank across the nutrient indices ranged from 52 to 70%, rising to 90-99% for concordance within adjacent quintiles. CONCLUSIONS: To reduce the respondents' burden and to increase data completeness, the assignment of a uniform portion size when scoring the SCCS FFQ was considered acceptable.
Authors:
David G Schlundt; Maciej S Buchowski; Margaret K Hargreaves; Jean H Hankin; Lisa B Signorello; William J Blot
Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural    
Journal Detail:
Title:  Public health nutrition     Volume:  10     ISSN:  1368-9800     ISO Abbreviation:  Public Health Nutr     Publication Date:  2007 Mar 
Date Detail:
Created Date:  2007-02-09     Completed Date:  2007-04-30     Revised Date:  2007-12-03    
Medline Journal Info:
Nlm Unique ID:  9808463     Medline TA:  Public Health Nutr     Country:  England    
Other Details:
Languages:  eng     Pagination:  245-51     Citation Subset:  IM    
Affiliation:
Department of Psychology, Vanderbilt University, Nashville, TN 37232, USA. david.schlundt@vanderbilt.edu
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MeSH Terms
Descriptor/Qualifier:
African Americans* / psychology,  statistics & numerical data
Cohort Studies
Energy Intake / physiology*
European Continental Ancestry Group* / psychology,  statistics & numerical data
Female
Food / classification*
Humans
Male
Middle Aged
Pilot Projects
Prospective Studies
Questionnaires
Size Perception*
Statistics, Nonparametric
Grant Support
ID/Acronym/Agency:
5 P20 MD000516/MD/NCMHD NIH HHS; HL67715/HL/NHLBI NIH HHS; P60 DK20593/DK/NIDDK NIH HHS; R01 CA92447/CA/NCI NIH HHS

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


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