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Reproducibility and validity of a semiquantitative food frequency questionnaire to assess dietary intakes for the Korean elderly



Reproducibility and validity of a semiquantitative food frequency questionnaire to assess dietary intakes for the Korean elderly



Ecology of food and nutrition 41(6): 533-547



We examined the reproducibility and validity of a semiquantitative food frequency questionnaire (SFFQ) for older Korean adults. Dietary intakes of 78 Koreans over 60 years old were measured by both a 96 item SFFQ twice during a four-month period and five or six 24-hour recalls over the same period. Correlation coefficients of nutrients for reproducibility and validity assessments ranged 0.42-0.60 (median = 0.54) and 0.24-0.62 (median = 0.51), respectively. Cereals and vegetable food groups, supplying a major proportion of nutrients, were least reproducible and valid. Milk and milk product were the most reproducible. Dietary quality measured by the SFFQ was inversely associated with nutritional risks. Reproducibility and validity of the SFFQ developed in this study were significantly similar to those reported from studies for younger Korean adults, however somewhat lower than those for Western populations partly due to culturally different eating patterns.

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Accession: 003915160

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DOI: 10.1080/03670240214729


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