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首页> 外文期刊>Journal of the American Dietetic Association >Validity and reliability of a quantitative food frequency questionnaire measuring n-3 fatty acid intakes in cardiac patients in the Midwest: a validation pilot study.
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Validity and reliability of a quantitative food frequency questionnaire measuring n-3 fatty acid intakes in cardiac patients in the Midwest: a validation pilot study.

机译：在中西部心脏病患者中测量食物中n-3脂肪酸摄入量的定量食物频率问卷的有效性和可靠性：一项验证性试验研究。

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The purpose of this pilot study was to test the validity and reliability of a quantitative n-3 fatty acid food frequency questionnaire (FFQ) for later use with larger groups of individuals. A convenience sample of heart patients provided dietary data via three 24-hour food recalls and FFQs. Participants were women (n=17) and men (n=11), 43 to 77 years of age. The association of mean daily intake of n-3 fatty acids obtained using food recalls and the FFQ was assessed by Pearson correlation. The reliability of the FFQ was assessed using coefficient alpha. Correlation of n-3 fatty acid intake using the food recalls and the FFQ was r=0.42 (P<0.05). The coefficient alpha for the test-retest of the FFQ was .83. The top two foods, walnuts and flaxseed, contributed 58% of the n-3 fatty acid intake, and the third food, salmon, contributed 5%. This quantitative n-3 FFQ is a valid instrument for use in place of food recalls for estimating n-3 fatty acid intakes in heart patients and is a reliable instrument to estimate n-3 fatty acid intakes from plant, animal, and seafood sources. The FFQ should be tested in a larger population. Registered dietitians can use this FFQ to screen for intakes, educate patients on food sources, and measure change in intakes after nutrition intervention.
机译：这项初步研究的目的是测试定量的n-3脂肪酸食物频率调查表（FFQ）的有效性和可靠性，以便以后与更大的人群一起使用。一个方便的心脏病患者样本通过三个24小时食物召回和FFQ提供了饮食数据。参与者为43至77岁的女性（n = 17）和男性（n = 11）。通过皮尔逊相关性评估通过食物召回获得的n-3脂肪酸的平均每日摄入量与FFQ的关联。使用系数α评估FFQ的可靠性。使用食物召回和FFQ的n-3脂肪酸摄入量的相关性为r = 0.42（P <0.05）。 FFQ重测的系数α为0.83。核桃和亚麻籽中前两种食物占n-3脂肪酸摄入量的58％，鲑鱼占第三种食物，占5％。这种定量的n-3 FFQ是代替食品召回来估计心脏病患者中n-3脂肪酸摄入量的有效工具，并且是估计从植物，动物和海鲜来源摄入n-3脂肪酸的可靠工具。 FFQ应该在更大的人群中进行测试。注册营养师可以使用此FFQ筛选摄入量，对患者进行食物来源教育，并测量营养干预后摄入量的变化。

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