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标题：The Evaluation and Use of a Food Frequency Questionnaire Among the Population in Trivandrum, South Kerala, India
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作者：Amrita Vijay ; Leena Mohan ; Moira A. Taylor 等
期刊名称：Nutrients
电子版ISSN：2072-6643
出版年度：2020
卷号：12
期号：2
页码：383-396
DOI：10.3390/nu12020383
出版社：MDPI Publishing
摘要：Dietary record tools such as food frequency questionnaire (FFQ) and food diaries (FD) are the most commonly used choices for assessing dietary intakes in most large-scale epidemiological studies. The authors developed a self-administered 360-item food frequency questionnaire (FFQ) to assess dietary intakes amongst a population-based cohort in South Kerala. In the validation study (n = 460), the data were collected using FFQs that were administered on three different occasions which were then compared to 7-day food records. The intake of foods and nutrients was higher as determined by the FFQ than that assessed using food records. Spearman correlations for macro-nutrients ranged from 0.72 for protein to 0.61 for carbohydrates and for micronutrients, from 0.71 for vitamin B6 to 0.34 for magnesium. The correlation was improved with energy-adjusted nutrient intakes. On average, the exact agreement for the macronutrients ranged from 48.2% to 57.1%, and that for micronutrients ranged from 66.7% to 41.9%, with the median percentage of 49.58%. The authors conclude that the FFQ has an acceptable reproducibility, however, there was a systematic trend towards higher estimates with the FFQ for most nutrients compared to the FD records.
关键词：food frequency questionnaire; food diary; validation; dietary analysis; India; dietary intake; dietary pattern food frequency questionnaire ; food diary ; validation ; dietary analysis ; India ; dietary intake ; dietary pattern