Repeatability of a Short Food Frequency Questionnaire to Assess Calcium Intake in Older Australians

Michelle Miller, Yee Chi Yeo, May Jiun Khor, Emma Clover, Anthea Magarey

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

Objective. To assess the repeatability of the validated Flinders Calcium Food Frequency Questionnaire (FFQ CA) for estimating dietary calcium intake in a sample of community dwelling older Australians. Methods. A test-retest repeatability study involving 100 subjects (≥ 65 years) living independently in metropolitan Adelaide, Australia. Estimates of daily calcium intake from the first (FFQ CA1) and repeated administration (FFQ CA2) were calculated from two versions (35-item and 15-item) of the FFQ CA. The intraclass correlation coefficient (ICC) was used to assess the repeatability. Results. Moderate and comparable ICC values (r=0.5, r=0.6) were found across the two versions of the FFQ CA. Conclusion. Both FFQ CA versions demonstrated moderate repeatability, supporting the results of previous studies.

Original languageEnglish
Article number905056
Number of pages5
JournalJournal of Aging Research
Volume2010
DOIs
Publication statusPublished - 2010

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