Associations of race/ethnicity, education, and dietary intervention with the validity and reliability of a food frequency questionnaire - The women's health trial feasibility study in minority populations
Associations of race/ethnicity, education, and dietary intervention with the validity and reliability of a food frequency questionnaire - The women's health trial feasibility study in minority populations
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DOI：
10.1093/oxfordjournals.aje.a009203
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发表时间：
1997-11-15
影响因子：
5
通讯作者：
George, V
中科院分区：
文献类型：
--
作者：
Kristal, AR;Feng, ZD;George, V
本报告描述了种族/民族和受教育年限与自我管理的食物频率问卷（FFQ）的有效性，可靠性和偏倚之间的关系，该问卷旨在对低脂，区域和民族饮食模式敏感。数据来自少数民族妇女健康试验可行性研究，这是一项在1992年至1994年进行的随机临床试验，旨在测试针对低收入，黑人和西班牙裔妇女的低脂饮食干预的可行性。在1,015名有资格进行这些分析的参与者中，28.1%是黑人，16.2%是西班牙裔，12.3%没有完成高中学业。分析的重点是从脂肪中获得的能量的百分比，并使用4天的食物记录作为标准工具。基线有效性，定义为FFQ和食物记录之间的相关性，黑人低于白人（0.26 vs. 0.49; p < 0.001），西班牙裔和白人之间没有差异，受教育年限较短的女性较低（0.19，0.35，0.39和0.42）。
This report describes the associations of race/ethnicity and years of education with the validity, reliability, and bias of a self-administered food frequency questionnaire (FFQ) designed to be sensitive to low-fat, regional, and ethnic dietary patterns. Data were from the Women's Health Trial Feasibility Study in Minority Populations, a randomized clinical trial conducted between 1992 and 1994 to test the feasibility of a low-fat dietary intervention that targeted low-income, black, and Hispanic women. Of 1,015 participants eligible for these analysis, 28.1% were black, 16.2% were Hispanic, and 12.3% had not completed high school. The analyses focused on percentage of energy obtained from fat, and used 4-day food records as the criterion instrument. Validity at baseline, defined as the correlation between FFQs and food records, was lower among blacks than among whites (0.26 vs. 0.49; p < 0.001), did not differ between Hispanics and whites, and was lower among women with fewer years of education (0.19, 0.35, 0.39, and 0.42 for