Document Detail

Validity and reproducibility of the food-frequency questionnaire used in the Shanghai men's health study.
MedLine Citation:
PMID:  17381986     Owner:  NLM     Status:  MEDLINE    
We evaluated the validity and reproducibility of the FFQ used in the Shanghai Men's Health Study (SMHS). The study included 195 randomly selected participants of the SMHS who completed one FFQ at baseline, twelve 24-hour dietary recalls (24-HDR) (once a month for twelve consecutive months) and a second FFQ at the end of the study. The FFQ accounted for 88.78% of the foods recorded in the 24-HDR surveys. The validity of the FFQ was evaluated by comparing nutrient and food group intake levels from the second FFQ and the multiple 24-HDR. Correlation coefficients ranged from 0.38 to 0.64 for macronutrients, 0.33 to 0.58 for micronutrients and 0.35 to 0.72 for food groups. Misclassification to opposite quartiles for nutrients and food groups was rare, ranging from 1.5 to 7.7%, while exact agreement rates were between 31.8 and 53.3%. The reliability of the FFQ was assessed by comparing the intake levels from the two FFQ. Correlation coefficients were 0.39 to 0.53 for macronutrients, 0.38 to 0.52 for micronutrients and 0.39 to 0.64 for food groups. Exact agreement rates for quartile distribution were between 31.8 and 49.2%, while misclassification to opposite quartiles was between 1.5 and 6.2%. These data indicate that the SMHS FFQ can reasonably categorise usual intake of nutrients and food groups among men living in urban Shanghai.
Raquel Villegas; Gong Yang; DaKe Liu; Yong-Bing Xiang; Hui Cai; Wei Zheng; Xiao Ou Shu
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural; Validation Studies    
Journal Detail:
Title:  The British journal of nutrition     Volume:  97     ISSN:  0007-1145     ISO Abbreviation:  Br. J. Nutr.     Publication Date:  2007 May 
Date Detail:
Created Date:  2007-09-05     Completed Date:  2007-11-27     Revised Date:  2013-08-08    
Medline Journal Info:
Nlm Unique ID:  0372547     Medline TA:  Br J Nutr     Country:  England    
Other Details:
Languages:  eng     Pagination:  993-1000     Citation Subset:  IM    
Department of Medicine, Vanderbilt Epidemiology Center, Vanderbilt University Medical Center and Vanderbilt-Ingram Cancer Center, Medical Center East, Suite 6000, 1215 21st Avenue South, Nashville, TN 37232-8300, USA.
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MeSH Terms
Carotenoids / administration & dosage
China / epidemiology
Diet Records
Diet Surveys*
Dietary Carbohydrates / administration & dosage
Dietary Fats / administration & dosage
Dietary Fiber / administration & dosage
Dietary Proteins / administration & dosage
Micronutrients / administration & dosage
Middle Aged
Nutritional Status*
Questionnaires / standards*
Reproducibility of Results
Vitamins / administration & dosage
Grant Support
Reg. No./Substance:
0/Dietary Carbohydrates; 0/Dietary Fats; 0/Dietary Proteins; 0/Micronutrients; 0/Vitamins; 36-88-4/Carotenoids

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