Department of Health Science, Shiga University of Medical Science, Otsu, Japan.
J Epidemiol. 2010;20 Suppl 3(Suppl 3):S506-14. doi: 10.2188/jea.je20090218.
Diet is one of the most important lifestyle factors that a affect healthy life expectancy through onset of various lifestyle-related diseases. Large-scale cohort studies with sufficient baseline nutritional information are scarce. NIPPON DATA80/90 is cohort study of representative Japanese population, and the cohorts also participated in the National Nutrition Survey in Japan (NNSJ) at the baseline. The corresponding datasets could be combined.
Individual records of NIPPON DATA and NNSJ were compared and integrated. Intakes of nutrients and food groups for individual participants were calculated by distributing intakes in the each household in NNSJ, considering age and sex of the individuals. The results from an international cooperative epidemiological study (INTERMAP) were utilized to estimate intakes of 75 nutrients for NNSJ80 and 70 nutrients for NNSJ90. Nutrient intakes calculated utilizing INTERMAP data were compared with those in the NNSJ datasets.
NIPPON DATA80/90 datasets were enhanced with detailed baseline nutrient intake data (the numbers of participants combined were 10,422 and 8342 for NIPPON DATA80 and 90, respectively). The mean nutrient intakes calculated through utilizing INTEMRAP data and those calculated from the NNSJ datasets were similar, and the calculated values were strongly correlated with those calculated from NNSJ datasets (Pearson's correlation coefficients greater than 0.8 [P < 0.001]). Detailed nutrient intakes (eg, cholesterol, fatty acids, amino acids, and dietary fiber) were complemented.
The nutrient intakes calculated from NNSJ datasets for the participants of NIPPON DATA are appropriate as the baseline nutrient intake data. The enhanced cohort datasets are suitable for investigations of baseline dietary habits and the consequent health status.
饮食是影响预期健康寿命的最重要生活方式因素之一，它通过引发各种与生活方式相关的疾病产生影响。目前缺乏具有充足基线营养信息的大规模队列研究。NIPPON DATA80/90 是一项针对代表性日本人群的队列研究，这些队列也参与了基线时的日本国家营养调查（NNSJ）。可以将相应的数据集进行合并。
对 NIPPON DATA 和 NNSJ 的个体记录进行比较和整合。通过考虑个体的年龄和性别，在 NNSJ 中对每个家庭的摄入量进行分配，计算个体参与者的营养素和食物组摄入量。利用国际合作流行病学研究（INTERMAP）的结果，估算 NNSJ80 的 75 种营养素和 NNSJ90 的 70 种营养素的摄入量。利用 INTERMAP 数据计算的营养素摄入量与 NNSJ 数据集进行比较。
NIPPON DATA80/90 数据集通过详细的基线营养素摄入数据得到了增强（NIPPON DATA80 和 90 的合并参与者人数分别为 10422 人和 8342 人）。利用 INTERMAP 数据计算的平均营养素摄入量与从 NNSJ 数据集中计算出的摄入量相似，且计算值与从 NNSJ 数据集中计算出的摄入量呈强相关性（Pearson 相关系数大于 0.8[P<0.001]）。补充了详细的营养素摄入量（例如胆固醇、脂肪酸、氨基酸和膳食纤维）。
NIPPON DATA 参与者的 NNSJ 数据集计算的营养素摄入量适合作为基线营养素摄入数据。增强后的队列数据集适合调查基线饮食习惯和随后的健康状况。
