Is price a barrier to eating more fruits and vegetables for low-income families?
Is price a barrier to eating more fruits and vegetables for low-income families?
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DOI：
10.1016/j.jada.2007.08.015
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发表时间：
2007-11-01
影响因子：
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通讯作者：
Culp, Jennifer
中科院分区：
文献类型：
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作者：
Cassady, Diana;Jetter, Karen M.;Culp, Jennifer
目的通过比较节俭食品计划和2005年美国人膳食指南中水果和蔬菜的平均价格，确定价格是否是低收入家庭水果和蔬菜消费的障碍（2005年膳食指南），调查价格的变化，由邻里收入和超市的类型，并估计2005年膳食指南水果和蔬菜篮对低收入人群食物预算的影响，设计一项市场篮子调查在25家超市进行，跨越三个时间段，以考虑农产品价格的季节性变化。在加利福尼亚州的萨克拉门托和加利福尼亚州的洛杉矶的收入水平的变化。主要结果测量节俭食物计划和2005年饮食指南市场篮子的水果和蔬菜的平均成本。进行统计分析进行学生t检验来比较市场篮子的平均成本。结果2005年饮食指南市场篮子的成本比节俭食物计划低4在低收入地区，65美元（P <0.001），在散装超市，59美元（P <0.05）。2005年膳食指南市场篮子将需要一个低收入家庭投入43%至70%的食品预算的水果和蔬菜。结论公共政策应研究如何使水果和蔬菜更负担得起的低收入家庭。
Objective To determine if price is a barrier to fruit and vegetable consumption for low-income families by comparing the average cost of a market basket of fruits and vegetables from the Thrifty Food Plan and the Dietary Guidelines for Americans 2005 (2005 Dietary Guidelines), investigating variations in price by neighborhood income and by type of supermarket, and estimating the influence of a 2005 Dietary Guidelines fruit and vegetable basket on the food budget of a low-income family.Design A market basket survey was conducted at 25 supermarkets across three time periods to allow for seasonal variation in produce prices.Setting Stores were selected from census tracts with a variety of income levels in Sacramento, CA, and Los Angeles, CA.Main outcome measures The average cost of a Thrifty Food Plan and 2005 Dietary Guidelines market basket for fruits and vegetables.Statistical analyses performed Student t tests were used to compare the mean cost of market baskets.Results The 2005 Dietary Guidelines market basket cost 4% less than the Thrifty Food Plan (P < 0.001), and was significantly less expensive in low-income areas at $65 (P < 0.05), and in bulk supermarkets at $59 (P < 0.05). The 2005 Dietary Guidelines market basket would require a low-income family to devote 43% to 70% of their food budget to fruits and vegetables.Conclusions Public policies should examine ways to make fruits and vegetables more affordable to low-income families.