Reproducibility and validity of a self-administered food frequency questionnaire used in the JACC study.
Reproducibility and validity of a self-administered food frequency questionnaire used in the JACC study.
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JACC研究中使用的自我管理食品频率问卷的可重复性和有效性。
DOI：
10.2188/jea.15.s9
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发表时间：
2005-03
影响因子：
4.7
通讯作者：
JACC Study Group
中科院分区：
文献类型：
--
作者：
Date C;Fukui M;Yamamoto A;Wakai K;Ozeki A;Motohashi Y;Adachi C;Okamoto N;Kurosawa M;Tokudome Y;Kurisu Y;Watanabe Y;Ozasa K;Nakagawa S;Tokui N;Yoshimura T;Tamakoshi A;JACC Study Group
背景：JACC研究中使用的饮食习惯自填问卷包含40项食物频率问卷（FFQ）。尽管超过11万例受试者入组JACC研究并对FFQ做出了应答，但迄今为止尚未进行验证研究。方法：队列成员中的85名志愿者完成了2个FFQ（FFQ 1和2）和12天称重饮食记录（WDR）。两次FFQ之间的间隔为1年。在为期一年的时间里，受试者在每个季节进行为期3天的WDR。我们通过使用两个FFQ测试再现性。此外，我们使用12天WDR作为金标准来测试FFQ的有效性。研究结果：2种FFQ的摄入频率通常一致，显示斯皮尔曼相关系数范围为0.42（可食用野生植物）至0.86（咖啡）。FFQ 2的能量和营养素摄入量与12天WDR的能量和营养素摄入量的斯皮尔曼相关系数为0.20（能量）至0.46（动物蛋白质、钾）。调整能量摄入后，相关系数为0.21（鱼脂肪）至0.51（动物脂肪）。当按四分位数对FFQ2和WDR进行分类并检查两种方法之间的一致程度时，我们获得了其中位数30%。结论：FFQ适用于处理大量受试者。然而，由于此FFQ的能量和营养素摄入量不能反映整体膳食摄入情况，受试者的膳食摄入应分类评估。
BACKGROUND: A self-administered questionnaire on dietary habits used in the JACC Study contained a 40-item food frequency questionnaire (FFQ). Although more than 110 thousand subjects enrolled in JACC Study and responded to the FFQ, no validation study has been conducted to date. METHODS: Eighty-five volunteers among the cohort members completed 2 FFQs (FFQs 1&2) and 12-day weighed dietary records (WDR). The interval between the two FFQs was one year. During the one year, the subjects carried out a 3-consecutive-day WDR in each season. We tested the reproducibility by using two FFQs. Also, we tested the validity of the FFQ by using the 12-day WDR as a gold standard. RESULTS: The intake frequencies of the 2 FFQs often agreed, showing the Spearman correlation coefficients ranging from 0.42 (edible wild plants) to 0.86 (coffee). The Spearman correlation coefficients of the energy and nutrient intakes from FFQ2, and that of the 12-day WDR were 0.20(energy) to 0.46 (animal protein, potassium). After adjusting the energy intake, the correlation coefficients showed 0.21(fish fat) to 0.51(animal fat). When classifying the FFQ2 and WDR by quartiles and examining the degree of agreement between the two methods, we obtained its median 30%. CONCLUSIONS: The FFQ is suitable to deal with a large group of subjects. However, since the energy and the amount of nutrient intake from this FFQ can not show the overall dietary intake situation, the subjects’ dietary intake should be assessed by categories.
影响因子：
5
作者：
WILLETT, W;STAMPFER, MJ
通讯作者：
STAMPFER, MJ