National Center for Primary Care, Morehouse School of Medicine, 720 Westview Dr SW, Atlanta, GA 30310. Email:
National Center for Primary Care, Morehouse School of Medicine, Atlanta, Georgia.
Prev Chronic Dis. 2018 Feb 1;15:E17. doi: 10.5888/pcd15.170220.
Cardiovascular disease (CVD) is the leading cause of death in the United States and disproportionately affects racial/ethnic minority groups. Healthy neighborhood conditions are associated with increased uptake of health behaviors that reduce CVD risk, but minority neighborhoods often have poor food access and poor walkability. This study tested the community-driven hypothesis that poor access to food at the neighborhood level and poor neighborhood walkability are associated with racial disparities in premature deaths from CVD.
We examined the relationship between neighborhood-level food access and walkability on premature CVD mortality rates at the census tract level for the city of Atlanta using multivariable logistic regression models. We produced maps to illustrate premature CVD mortality, food access, and walkability by census tract for the city.
We found significant racial differences in premature CVD mortality rates and geographic disparities in food access and walkability among census tracts in Atlanta. Improved food access and walkability were associated with reduced overall premature CVD mortality in unadjusted models, but this association did not persist in models adjusted for census tract population composition and poverty. Census tracts with high concentrations of minority populations had higher levels of poor food access, poor walkability, and premature CVD mortality.
This study highlights disparities in premature CVD mortality and neighborhood food access and walkability at the census tract level in the city of Atlanta. Improving food access may have differential effects for subpopulations living in the same area. These results can be used to calibrate neighborhood-level interventions, and they highlight the need to examine race-specific health outcomes.
心血管疾病(CVD)是美国的主要死因,且不成比例地影响着少数族裔群体。健康的社区环境与增加采取降低 CVD 风险的健康行为有关,但少数族裔社区往往存在食物获取不足和步行不便的问题。本研究检验了社区驱动的假设,即社区层面的食物获取不足和社区步行便利性差与 CVD 过早死亡的种族差异有关。
我们使用多变量逻辑回归模型,针对亚特兰大市的普查区,检验了社区层面的食物获取和步行便利性与 CVD 过早死亡率之间的关系。我们制作了地图,以说明该市各普查区的 CVD 过早死亡率、食物获取和步行便利性。
我们发现,CVD 过早死亡率存在显著的种族差异,亚特兰大各普查区的食物获取和步行便利性也存在地理差异。在未调整的模型中,改善食物获取和步行便利性与总体 CVD 过早死亡率降低有关,但在调整了普查区人口构成和贫困因素的模型中,这种关联并不存在。少数族裔人口集中的普查区食物获取不足、步行便利性差和 CVD 过早死亡率较高。
本研究强调了亚特兰大市 CVD 过早死亡率以及社区食物获取和步行便利性在普查区层面的差异。改善食物获取可能对居住在同一地区的亚人群体产生不同的影响。这些结果可用于校准社区层面的干预措施,并突出了需要检查特定种族的健康结果。