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首页> 美国卫生研究院文献>Health Equity >Evaluating the Impact of Improving Access on Consumption of Fruits and Vegetables in a Rural Community in Texas: A Modeling Study
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Evaluating the Impact of Improving Access on Consumption of Fruits and Vegetables in a Rural Community in Texas: A Modeling Study

机译：评价得克萨斯州农村社区改善获取对水果和蔬菜消费的影响：模型研究

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>Purpose: Most residents in rural regions of the United States consume fewer amounts of fruits and vegetables (FVs) compared with their urban counterparts. Difficulties in access to FVs often contribute to different consumption patterns in rural regions, aside from a lack of education or motivation for eating healthy foods. This article uses simulation methods to estimate the relationship between increasing food access and FV consumption levels in a targeted rural community.>Methods: An agent-based model previously developed to predict individual dietary behaviors was used. We adapted it to a rural community in west Texas following a two-step process. First, we validated the model with observed data. Second, we simulated the impact of increasing access on FV consumption. We estimated model parameters from the 2010 census and other sources.>Results: We found that decreasing the driving distance to FV outlets would increase FV consumption in the community. For example, a one-mile decrease in driving distance to the nearest FV store could lead to an 8.9% increase in FV consumption; a five-mile decrease in driving distance could lead to a 25% increase in FV consumption in the community. We found that the highest marginal increase in FV consumption was when the driving distance decreased from 3.5 miles to 3 miles.>Conclusions: Analysis to inform policy alternatives is a challenge in rural settings due to lack of data. This study highlights the potential of simulation modeling to inform and analyze policy alternatives in settings with scarce data. The findings from modeling can be used to evaluate alternative policies in addressing chronic diseases through dietary interventions in rural regions.
机译：>目的：与城市居民相比，美国农村地区的大多数居民食用较少量的水果和蔬菜（FV）。除了缺乏教育或缺乏进食健康食品的动机外，获得家庭暴力的困难常常助长了农村地区不同的消费方式。本文使用模拟方法来估算目标农村社区的食物获取量与FV消费水平之间的关系。>方法：使用了以前开发的基于主体的模型来预测个体饮食行为。经过两个步骤，我们将其适应了德克萨斯州西部的一个农村社区。首先，我们使用观察到的数据验证了模型。其次，我们模拟了增加访问量对FV消费的影响。我们从2010年的人口普查和其他来源估算了模型参数。>结果：我们发现，缩短通往FV商店的行驶距离会增加社区内的FV消费。例如，到最近的FV商店的行驶距离减少一英里可能会导致FV消耗量增加8.9％；行驶距离缩短五英里可能会使社区中的FV消费量增加25％。我们发现，FV消耗的最高边际增长是当行驶距离从3.5英里减少到3英里时。>结论：由于缺乏数据，在农村地区进行分析以告知政策替代方案是一项挑战。这项研究强调了在缺乏数据的情况下，模拟建模可以为政策选择提供信息和分析的潜力。建模的结果可用于评估通过农村地区饮食干预应对慢性病的替代政策。

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