Document Detail

Comparative validation of standard, picture-sort and meal-based food-frequency questionnaires adapted for an elderly population of low socio-economic status.
MedLine Citation:
PMID:  17411474     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: To compare the validity of a modified Block food-frequency questionnaire (FFQ), a picture-sort administration of the FFQ (PSFFQ) and a meal pattern-based questionnaire (MPQ) in a multi-ethnic population of low socio-economic status (SES).
DESIGN: Participants completed six 24-hour dietary recalls (24HR) over six months; the FFQ, PSFFQ and MPQ were completed in random order in the subsequent month. Instruments were interviewer-administered. The PSFFQ and MPQ were developed in formative research concerning difficulties for older adults in responding to standard food-frequency instruments.
SETTING: Rural North Carolina, USA. Subjects One hundred and twenty-two African American, Native American and white adults aged > or = 65 years, with approximately one-third in each ethnic group. Inclusion criteria included education < or = 12 years and income < or = 150% of national poverty level or Medicaid recipient.
RESULTS: Comparing median intakes from the average of the 24HR with the three diet assessment instruments, the MPQ tended to overestimate intakes compared with the FFQ and PSFFQ. Correlations among nutrients obtained by the 24HR and the other three instruments were generally statistically significant and positive. Across nutrients, the PSFFQ was most highly correlated with the 24HR for women, while the FFQ was most highly correlated with the 24HR for men.
CONCLUSIONS: Dietary assessments using 24HR and FFQ were similar to results reported elsewhere, although correlations between 24HR and FFQ were somewhat lower. Interviewer-administered dietary assessments should be used with caution to evaluate dietary intake among older adults with low SES. Gender differences and the lower correlations should be investigated more thoroughly to assist in choosing dietary assessment instruments for this population.
Sara A Quandt; Mara Z Vitolins; Shannon L Smith; Janet A Tooze; Ronny A Bell; Cralen C Davis; Robert F DeVellis; Thomas A Arcury
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, N.I.H., Extramural; Validation Studies    
Journal Detail:
Title:  Public health nutrition     Volume:  10     ISSN:  1368-9800     ISO Abbreviation:  Public Health Nutr     Publication Date:  2007 May 
Date Detail:
Created Date:  2007-04-06     Completed Date:  2007-06-14     Revised Date:  2012-06-20    
Medline Journal Info:
Nlm Unique ID:  9808463     Medline TA:  Public Health Nutr     Country:  England    
Other Details:
Languages:  eng     Pagination:  524-32     Citation Subset:  IM    
Division of Public Health Sciences, Wake Forest University School of Medicine, Medical Center Boulevard, Winston-Salem, NC 27157-1063, USA.
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MeSH Terms
African Americans
Diet Surveys*
European Continental Ancestry Group
Geriatric Assessment* / methods
Indians, North American
Interviews as Topic
Mental Recall
North Carolina
Nutrition Assessment*
Questionnaires / standards*
Rural Population
Social Class*
Socioeconomic Factors
Grant Support

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

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