Tracking nutrient changes for trends analysis in the United States
Tracking nutrient changes for trends analysis in the United States
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DOI：
10.1006/jfca.2001.0993
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发表时间：
2001-06-01
影响因子：
4.3
通讯作者：
Raper, N
中科院分区：
文献类型：
--
作者：
Anderson, E;Perloff, B;Raper, N
了解一段时间内食物和营养物质的消费模式对各种与人口健康和福祉有关的研究都很重要。为了确保食品消费趋势分析有意义，必须经常更新食品数据库以纳入最新信息。还应建立系统，对食品数据库更新时发生的变化类型进行分类和跟踪。美国农业部的食品调查研究小组已经实施了一项用于趋势分析的调查营养数据库，用于美国的食品消费调查。在这个系统中，可以增加项目，也可以修改现有项目。“数据改进”，例如新的营养值代表改进的分析方法。取代现有值，并可追溯应用于以前的营养分析。归类为实际“食品变化”的修订版本被插入数据库，保留较旧的值以表示以前存在的食品。每个数据库值都附有日期，以指示该值有效的时间段。自1985年以来，该系统已对数据库进行了3万多次修订，包括营养值、包装尺寸、分量重量、食品名称和用于营养计算的食谱。(C) 2001学术出版社。
Knowledge of food and nutrient consumption patterns over time is important to various types of research related to the health and well-being of the population. To ensure that food consumption trend analyses are meaningful, food databases must be updated frequently to incorporate the latest information. Systems should also be in place to categorize and track the types of changes that occur as food databases are updated. The Food Surveys Research Group at USDA has implemented a Survey Nutrient Database for Trends Analysis for use with food consumption surveys in the United States. Within this system, items may be added, or existing items may be revised. "Data Improvements", such as new nutrient values representing improved analytical methods. replace existing values and may be applied retroactively to previous nutrient analyses. Revisions classified as actual "Food Changes" are inserted into the database, with older values remaining to represent the food items as they previously existed. Dates accompany each database value to indicate the time period for which it is valid. Since 1985, over 30 000 revisions have been made to the database nutrient values, Package sizes, portion weights, food names, and recipes used for nutrient calculations are also tracked within the system. (C) 2001 Academic Press.