Popkin B M, Haines P S, Siega-riz A M
Department of Nutrition, University of North Carolina, USA.
Appetite. 1999 Feb;32(1):8-14. doi: 10.1006/appe.1998.0190.
Over the past 2 decades our group of nutrition and economics researchers at the University of North Carolina at Chapel Hill has used a wide array of methods to study eating patterns and dietary trends. Our focus has been on characterising the way diet has changed over time and identifying some of the major factors underlying these trends. The complexity of this undertaking has led us to develop a number of unique systems for classifying foods and assessing the overall quality of diet. We have also addressed the challenges that exist when measuring changes in both the food supply and food-related behaviors over time. This paper summarises some of the methodological work related to food grouping, overall diet quality indices, and trends research as well as the challenges we still face in this arena.
在过去20年里，我们位于北卡罗来纳大学教堂山分校的营养与经济学研究团队运用了一系列方法来研究饮食模式和饮食趋势。我们的重点一直是描述饮食随时间的变化方式，并确定这些趋势背后的一些主要因素。这项工作的复杂性促使我们开发了一些独特的系统来对食物进行分类，并评估饮食的整体质量。我们还应对了随着时间推移衡量食物供应和与食物相关行为变化时存在的挑战。本文总结了一些与食物分组、整体饮食质量指数和趋势研究相关的方法学工作，以及我们在这个领域仍然面临的挑战。
