Validation of a food-frequency questionnaire for cohort studies in rural Japan
Validation of a food-frequency questionnaire for cohort studies in rural Japan
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DOI：
10.1079/phn2002411
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发表时间：
2003-04-01
影响因子：
3.2
通讯作者：
Hisamichi, S
中科院分区：
文献类型：
--
作者：
Ogawa, K;Tsubono, Y;Hisamichi, S
目的：研究的有效性和重复性的自我管理的食物频率问卷（FFQ）用于两个队列研究在日本。设计：横断面研究。设置：两个农村城镇的宫城县，在日本东北部。主题：55名男性和58名女性。结果：40项FFQ管理两次，一年分开。同时，在一年中的四个季节收集了四个3天的饮食记录（DR）。我们根据FFQ和DR计算了总能量和15种营养素、40种食物和9种食物组的每日消耗量。我们计算了FFQ和DR之间的斯皮尔曼相关系数。通过调整年龄、总能量和DR测量误差的衰减，营养素摄入量的相关系数男性为0.25 - 0.58，女性为0.30 - 0.69，中位数分别为0.43和0.43。对于食物项目，相关系数的中位数（范围）在男性中为0.35（0.30至0.72），在女性中为0.34（-0.06至0.75），对于食物组，相关系数的中位数（范围）分别为0.60（0.10至0.76）和0.51（0.28-0.70）。间隔1年进行的两次FFQ的相关系数中位数（范围）为0.49（0.31-0.71）男性和0.50（0.40-0.64）女性营养素，0.43（0.14-0.76）和0.45（0.06-0.74）;食物组分别为0.50（0.30-0.70）和0.57（0.39-0.66）。相对较高的协议百分比摄入量的营养素和食物组具有较高的有效性，获得了较低的完全不同意的百分比。结论：FFQ具有较高的再现性和合理的有效性，是有用的，在评估通常的营养素，食物和食物组之间的日本农村人口的摄入量。
Objectives: To examine the validity and reproducibility of a self-administered food-frequency questionnaire (FFQ) used for two cohort studies in Japan.Design: Cross-sectional study.Setting: Two rural towns in the Miyagi Prefecture, in north-eastern Japan.Subjects: Fifty-five men and 58 women.Results: A 40-item FFQ was administered twice, I year apart. In the mean time, four 3-day diet records (DRs) were collected in four seasons within the year. We calculated daily consumption of total energy and 15 nutrients, 40 food items and nine food groups from the FFQs and the DRs. We computed Spearman correlation coefficients between the FFQs and the DRs. With adjustment for age, total energy and deattenuation for measurement error with the DRs, the correlation coefficients for nutrient intakes ranged from 0.25 to 0.58 in men and from 0.30 to 0.69 in women, with median of 0.43 and 0.43, respectively. Median (range) of the correlation coefficients was 0.35 (0.30 to 0.72) in men and 0.34 (-0.06 to 0.75) in women for food items and 0.60 (0.10 to 0.76) and 0.51 (0.28-0.70) for food groups, respectively. Median (range) of the correlation coefficients for the two FFQs administered 1 year apart was 0.49 (0.31-0.71) in men and 0.50 (0.40-0.64) in women for nutrients, 0.43 (0.14-0.76) and 0.45 (0.06-0.74) respectively for food items, and 0.50 (0.30-0.70) and 0.57 (0.39-0.66) respectively for food groups. Relatively higher agreement percentages for intakes of nutrients and food groups with high validity were obtained together with lower complete disagreement percentages.Conclusions: The FFQ has a high reproducibility and a reasonably good validity, and is useful in assessing the usual intakes of nutrients, foods and food groups among a rural Japanese population.