Validity and reproducibility of a quantitative food frequency questionnaire for a cohort study in Japan
Validity and reproducibility of a quantitative food frequency questionnaire for a cohort study in Japan
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DOI：
10.1093/jjco/29.1.38
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发表时间：
1999-01-01
影响因子：
2.4
通讯作者：
Inaba, S
中科院分区：
文献类型：
--
作者：
Shimizu, H;Ohwaki, A;Inaba, S
背景资料：一个自我管理的定量食物频率问卷（Qx），开发了一个基于人群的队列研究癌症在高山，Japan.Methods：Qx之间的58名男性和59名女性志愿者进行了测试。从Qx计算的前一年的平均每日营养素摄入量与3天的食物记录和4个24小时的回忆进行了比较。Qx还在37名志愿者中进行了验证，将Qx计算的营养素摄入量与一年内12个1天的食物记录进行比较。我们还计算了第一次调查1年后同一志愿者服用的Qx和第二次Qx之间各种营养素的组内相关系数。结果：Qx和3天记录的总能量之间的Pearson相关系数男性为0.38，女性为0.25，Qx和24小时回忆之间的Pearson相关系数男性和女性分别为0.19和-0.02，分别Qx和3天记录中的几种营养素之间的相关性对于男性和女性都在0.2到0.5之间。能量调整后，这些相关性范围为0.2至0.6男性和0.1至0.7女性。总的来说，Qx和12个1天记录之间的各种营养物质的相关性高于上述。组内相关系数男性为0.46 ~ 0.78，女性为0.36 ~ 0.67，维生素C除外。当信息的部分大小被排除在外，几乎所有的上述指标都显示出较低的figures.Conclusion：这些结果表明，我们的食物频率问卷与部分大小的信息可以用来估计每个人的营养素摄入量。
Background: A self-administered quantitative food frequency questionnaire (Qx) was developed for a population-based cohort study on cancer in Takayama, Japan.Methods: The Qx was tested among 58 male and 59 female volunteers. Average daily nutrient intakes for the previous year calculated from the Qx were compared with those from 3-day food records and four 24-h recalls. The Qx was also validated among 37 volunteers by comparing the nutrient intakes calculated from the Qx with 12 1-day food records during a year. We also calculated the intra-class correlation coefficients for various nutrients between the Qx and the second Qx administered by the same volunteers 1 year after the first survey.Results: Pearson correlation coefficients between total energy from the Qx and 3-day records were 0.38 for men and 0.25 for women and those between the Qx and 24-h recalls were 0.19 and -0.02 for men and women, respectively. Correlations between the several nutrients from the Qx and 3-day records ranged from 0.2 to 0.5 for both men and women. These correlations after energy adjustment ranged from 0.2 to 0.6 for men and from 0.1 to 0.7 for women. in general, the correlations for various nutrients between the Qx and 12 1-day records were higher than those described above. The intra-class correlation coefficients ranged from 0.46 to 0.78 in men and from 0.36 to 0.67, except for vitamin C in women. When the information on portion size was excluded, almost all of the above indices showed somewhat lower figures.Conclusion: These results suggest that our food frequency questionnaire with portion size information can be used to estimate nutrient intakes of each individual.