Enhancing data on nutrient composition of foods eaten by participants in the INTERMAP study in China, Japan, the United Kingdom, and the United States
Enhancing data on nutrient composition of foods eaten by participants in the INTERMAP study in China, Japan, the United Kingdom, and the United States
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DOI：
10.1016/s0889-1575(03)00043-7
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发表时间：
2003-06-01
影响因子：
4.3
通讯作者：
Stamler, J
中科院分区：
文献类型：
--
作者：
Schakel, SF;Dennis, BH;Stamler, J
国际宏量营养素与血压研究（INTERMAP）是一项由四个国家组成的研究，旨在调查个人饮食摄入量与血压之间的关系。对个体的饮食摄入模式进行了估算，包括常量营养素（蛋白质、脂类、碳水化合物、酒精）及其成分（氨基酸、脂肪酸、淀粉），以及矿物质、维生素、咖啡因和膳食纤维。研究的饮食评估阶段包括在中华人民共和国、日本、英国和美国的16个中心收集4680名年龄在40-59岁的成年人的4个24小时召回和2个24小时尿液样本。对于每个国家，已有的当地消费食品营养成分数据库都已更新，以便用于分析在该国境内收集的饮食数据。这四个原始数据库所包含的食物和营养素的数量和类型、获取营养素的分析方法以及缺失营养素值的百分比各不相同。明尼苏达大学营养协调中心以几种方式更新了原始数据库，以克服上述限制，并增加了四个国家个人营养摄入分析的可比性：(1)增加了研究参与者报告的新食物和制备方法；(2)补充对研究目标重要的缺失营养领域；(3)缺失营养值的代入，为参与者报告的每种食物提供完整的营养数据；(4)利用调整因子增强各国营养编码方法所得营养摄入量估计值之间的可比性。有可能扩大、加强和调整来自四个国家的营养数据库，以产生INTERMAP参与者报告的所有食品成分的可比（60种营养素）或几乎可比（10种营养素）数据。2003爱思唯尔科学有限公司版权所有。
The International Study of Macronutrients and Blood Pressure (INTERMAP) is a four-country study investigating relationships between individual dietary intakes and blood pressure. Dietary intake patterns of individuals were estimated for macronutrients (proteins, lipids, carbohydrates, alcohol) and their components (amino acids, fatty acids, starch), as well as minerals, vitamins, caffeine, and dietary fiber. The dietary assessment phase of the study involved collection of four 24-h recalls and two 24-h urine specimens from each of 4680 adults, ages 40-59, at 16 centers located in the People's Republic of China, Japan, the United Kingdom and the United States.For each country, an available database of nutrient composition of locally consumed foods was updated for use in the analysis of dietary data collected within the country. The four original databases differed number and types of foods and nutrients included, analytic methods used to derive nutrients, and percentage of missing nutrient values.The Nutrition Coordinating Center at the University of Minnesota updated the original databases in several ways to overcome the foregoing limitations and increase comparability in the analyses of nutrient intake of individuals across the four countries: (1) addition of new foods and preparation methods reported by study participants; (2) addition of missing nutrient fields important to the study objectives; (3) imputation of missing nutrient values to provide complete nutrient data for each food reported by participants; and (4) use of adjustment factors to enhance comparability among estimates of nutrient intake obtained through each country's nutrient-coding methodology. It was possible to expand, enhance, and adjust the nutrient databases from the four countries to produce comparable (60 nutrients) or nearly comparable (ten nutrients) data on composition of all foods reported by INTERMAP participants. (C) 2003 Elsevier Science Ltd. All rights reserved.