Document Detail

Calibration of a food frequency questionnaire in Koreans.
MedLine Citation:
PMID:  14505985     Owner:  NLM     Status:  MEDLINE    
The current trend of changes in nutrient intakes may have some relationship with the increase in the occurrence of degenerative diseases in the Korean population. To date, a calibrated food frequency questionnaire (FFQ) has not been developed that can be further used for large-scale epidemiological research in Koreans aged 40 and older. This study was undertaken to develop and calibrate an FFQ in Koreans. A total of 144 Koreans aged 40 years and above participated in the first phase, which was conducted using the three-day dietary record method. One hundred and thirty-eight of those who completed the first phase were then interviewed to test FFQ against dietary records as a reference. The mean absolute nutrient intakes estimated by the dietary records were statistically compared with those estimated by the FFQ using paired t-tests. The mean values from the FFQ differed at most by 14% from those of the dietary records for all nutrients with the exception of vitamin A. Spearman rank-order correlation coefficients and cross-classification were also calculated. The energy-adjusted and corrected correlations for attenuation varied from 0.36 to 0.82. The degree of good agreement by cross-classification between the dietary records and the FFQ ranged from 67% to 90%. The newly developed FFQ can be used as a dietary assessment tool to measure usual nutritional status of Koreans aged 40 years and older. Furthermore, this study demonstrates that the FFQ also provides a more labour-efficient tool that is easier to use than any of the commonly used methods for large-scale epidemiological studies of the relationships between nutrition and diseases in Koreans.
Jeongseon Kim; Yoon-Ok Ahn; Hee-Young Paik; Nobuyuki Hamajima; Manami Inoue; Kazuo Tajima
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Asia Pacific journal of clinical nutrition     Volume:  12     ISSN:  0964-7058     ISO Abbreviation:  Asia Pac J Clin Nutr     Publication Date:  2003  
Date Detail:
Created Date:  2003-09-24     Completed Date:  2004-04-23     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  9440304     Medline TA:  Asia Pac J Clin Nutr     Country:  Australia    
Other Details:
Languages:  eng     Pagination:  251-6     Citation Subset:  IM    
Department of Food and Nutrition in Oriental Medicine, Semyung University, San 21-1, Shinwol-dong, Chechon, Chungbuk, 390-711, Korea.
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MeSH Terms
Diet / statistics & numerical data*
Diet Records
Interviews as Topic
Middle Aged
Questionnaires / standards*
Reproducibility of Results
Sensitivity and Specificity

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