Department of Preventive Medicine, Rush University Medical Center, 1700 W. Van Buren, Chicago, IL 60612-3244, USA.
J Nutr Educ Behav. 2011 May-Jun;43(3):157-64. doi: 10.1016/j.jneb.2010.02.011. Epub 2011 Feb 22.
Describe lay food group categories of low-income African American women and assess the overlap of lay food groups and MyPyramid food groups.
A convenience sample of African American mothers from a low-income Chicago neighborhood performed a card-sorting task in which they grouped familiar food items into food groups.
One-on-one interviews in a neighborhood community center.
Twenty-eight African American mothers.
A hierarchical taxonomy of food groups for each participant, represented as a matrix of distances among food items in the individual sort of each participant.
Cultural consensus analysis, hierarchical cluster analysis, and coding of food group category labels and sorting justifications.
Consensus analysis revealed a consistent cultural model of lay food groups among the women. Lay food groups were systematically different from MyPyramid food groups. Lay food groups were more influenced by how food items are prepared or when and how food items are eaten than are MyPyramid food group categories.
Nutrition messages framed using lay food group categories of low-income African Americans may be more effective for that population than messages using MyPyramid food group categories.
描述低收入非裔美国女性的通俗食物分类，并评估通俗食物分类与“我的金字塔”食物分类的重叠情况。
在芝加哥一个低收入社区，采用便利抽样法选取 28 名非裔美国母亲，让她们在社区中心的一对一访谈中完成一项卡片分类任务，即将熟悉的食物归入食物组。
社区中心的一对一访谈。
28 名非裔美国母亲。
每位参与者的食物分类层级分类法，表现为每位参与者个人分类中食物项目之间的距离矩阵。
文化共识分析、层次聚类分析和食物分类标签以及分类依据的编码。
一致性分析显示，这些女性对通俗食物分类有一致的文化模式。通俗食物分类与“我的金字塔”食物分类系统不同。通俗食物分类更多地受到食物的烹饪方法或食用时间和方式的影响，而不是“我的金字塔”食物分类类别。
使用低收入非裔美国人的通俗食物分类来构建营养信息，可能比使用“我的金字塔”食物分类对该人群更有效。
