Program for Research in Nutrition and Health Disparities, School of Rural Public Health, Texas A&M Health Science Center, College Station, TX, USA.
Nutr J. 2011 Jan 25;10:10. doi: 10.1186/1475-2891-10-10.
Individuals and families are relying more on food prepared outside the home as a source for at-home and away-from-home consumption. Restricting the estimation of fast-food access to fast-food restaurants alone may underestimate potential spatial access to fast food.
The study used data from the 2006 Brazos Valley Food Environment Project (BVFEP) and the 2000 U.S. Census Summary File 3 for six rural counties in the Texas Brazos Valley region. BVFEP ground-truthed data included identification and geocoding of all fast-food restaurants, convenience stores, supermarkets, and grocery stores in study area and on-site assessment of the availability and variety of fast-food lunch/dinner entrées and side dishes. Network distance was calculated from the population-weighted centroid of each census block group to all retail locations that marketed fast food (n = 205 fast-food opportunities).
Spatial access to fast-food opportunities (FFO) was significantly better than to traditional fast-food restaurants (FFR). The median distance to the nearest FFO was 2.7 miles, compared with 4.5 miles to the nearest FFR. Residents of high deprivation neighborhoods had better spatial access to a variety of healthier fast-food entrée and side dish options than residents of low deprivation neighborhoods.
Our analyses revealed that identifying fast-food restaurants as the sole source of fast-food entrées and side dishes underestimated neighborhood exposure to fast food, in terms of both neighborhood proximity and coverage. Potential interventions must consider all retail opportunities for fast food, and not just traditional FFR.
个人和家庭越来越依赖家庭以外准备的食物作为家庭内和家庭外消费的来源。仅将快餐店的数量限制作为获取快餐的估计方法可能会低估获得快餐的潜在空间。
本研究使用了 2006 年布拉索斯谷食品环境项目(BVFEP)和 2000 年美国人口普查汇总文件 3 的数据,涉及德克萨斯州布拉索斯谷地区的六个农村县。BVFEP 实地调查数据包括识别和地理编码研究区域内和现场评估所有快餐店、便利店、超市和杂货店的快餐店、快餐午餐/晚餐主菜和配菜的供应情况和品种。网络距离是从每个普查区人口加权质心到销售快餐的所有零售地点(n = 205 个快餐机会)计算得出的。
快餐机会(FFO)的空间可达性明显优于传统的快餐店(FFR)。到最近的 FFO 的中位数距离为 2.7 英里,而到最近的 FFR 的中位数距离为 4.5 英里。高贫困社区的居民比低贫困社区的居民更容易获得各种更健康的快餐主菜和配菜选择。
我们的分析表明,仅将快餐店作为快餐主菜和配菜的唯一来源,可能会低估社区接触快餐的程度,无论是在社区接近度还是覆盖范围方面。潜在的干预措施必须考虑到所有的快餐零售机会,而不仅仅是传统的 FFR。