Maruyama Koutatsu, Ikeda Ai, Ishihara Junko, Takachi Ribeka, Sawada Norie, Shimazu Taichi, Nakamura Kazutoshi, Tanaka Junta, Yamaji Taiki, Iwasaki Motoki, Iso Hiroyasu, Tsugane Shoichiro
Laboratory of Community Health and Nutrition, Special Course of Food and Health Science, Department of Bioscience, Graduate School of Agriculture, Ehime University, Ehime,
Department of Public Health, Juntendo University Graduate School of Medicine, Tokyo, Japan.
Asia Pac J Clin Nutr. 2019;28(2):362-370. doi: 10.6133/apjcn.201906_28(2).0019.
The aim of this study was to examine the reproducibility of a self-administered food frequency questionnaire (FFQ) originally developed for the Japan Public Health Center-Based Prospective Study (JPHC study) and modified for use in the Next Generation (JPHC-NEXT) study.
Participants included 98 men and 142 women aged 40-74 years from the five areas included in the JPHCNEXT protocol. In November 2012, participants were recruited and asked to complete the first nutrition survey. The second nutrition survey was completed after 1 year.
We estimated daily energy as well as 53 nutrient and 29 food group intakes using the FFQ. To assess reproducibility, we calculated Spearman correlation coefficients between both FFQs, which showed mostly intermediate-to-high values. Median (range) correlation coefficients and quartile distribution in the same and adjacent categories for energy-adjusted nutrient intakes were 0.55 (0.42-0.84) and 84.7% (76.5%-98.0%) in men and 0.54 (0.35-0.80) and 84.5% (76.1%-94.4%) in women. The respective values for energy-adjusted food group intakes in men and women were also mostly intermediate to high: 0.54 (0.39-0.79) and 83.7% (75.5%-90.8%) in men and 0.57 (0.40-0.83) and 84.5% (77.5%-93.7%) in women.
The FFQ developed for the JPHC-NEXT study has reasonable reproducibility. Because this FFQ has also been validated in a previous study, it can be considered a useful dietary assessment tool to examine associations between dietary consumption and lifestyle-related diseases.
本研究旨在检验一份最初为日本公共卫生中心前瞻性研究（JPHC研究）开发、并为下一代（JPHC-NEXT）研究进行了修改的自填式食物频率问卷（FFQ）的可重复性。
参与者包括来自JPHC-NEXT方案所涵盖的五个地区的98名40至74岁男性和142名40至74岁女性。2012年11月，招募参与者并要求他们完成首次营养调查。1年后完成第二次营养调查。
我们使用FFQ估算了每日能量以及53种营养素和29个食物组的摄入量。为评估可重复性，我们计算了两份FFQ之间的斯皮尔曼相关系数，其大多显示为中到高值。能量调整后营养素摄入量在相同和相邻类别中的中位数（范围）相关系数及四分位数分布在男性中分别为0.55（0.42 - 0.84）和84.7%（76.5% - 98.0%），在女性中分别为0.54（0.35 - 0.80）和84.5%（76.1% - 94.4%）。男性和女性能量调整后食物组摄入量的相应值也大多为中到高：男性中为0.54（0.39 - 0.79）和83.7%（75.5% - 90.8%），女性中为0.57（0.40 - 0.83）和84.5%（77.5% - 93.7%）。
为JPHC-NEXT研究开发的FFQ具有合理的可重复性。由于该FFQ在先前的研究中也已得到验证，它可被视为一种有用的饮食评估工具，用于研究饮食消费与生活方式相关疾病之间的关联。
