Department of Nutrition, University of North Carolina at Chapel Hill, USA.
BMC Public Health. 2011 Jul 8;11:543. doi: 10.1186/1471-2458-11-543.
Recent studies suggest that neighborhood fast food restaurant availability is related to greater obesity, yet few studies have investigated whether neighborhood fast food restaurant availability promotes fast food consumption. Our aim was to estimate the effect of neighborhood fast food availability on frequency of fast food consumption in a national sample of young adults, a population at high risk for obesity.
We used national data from U.S. young adults enrolled in wave III (2001-02; ages 18-28) of the National Longitudinal Study of Adolescent Health (n = 13,150). Urbanicity-stratified multivariate negative binomial regression models were used to examine cross-sectional associations between neighborhood fast food availability and individual-level self-reported fast food consumption frequency, controlling for individual and neighborhood characteristics.
In adjusted analysis, fast food availability was not associated with weekly frequency of fast food consumption in non-urban or low- or high-density urban areas.
Policies aiming to reduce neighborhood availability as a means to reduce fast food consumption among young adults may be unsuccessful. Consideration of fast food outlets near school or workplace locations, factors specific to more or less urban settings, and the role of individual lifestyle attitudes and preferences are needed in future research.
最近的研究表明，社区快餐店的数量与肥胖率的增加有关，但很少有研究调查社区快餐店的数量是否会促进快餐消费。我们的目的是在全国青年成年人样本中估计社区快餐店的数量对快餐消费频率的影响，这是一个肥胖风险较高的人群。
我们使用了美国青少年健康纵向研究第三波（2001-02 年；年龄 18-28 岁）的数据，该研究共纳入了 13150 名年轻人。我们使用了城市分层多元负二项回归模型来检验社区快餐店数量与个体报告的快餐消费频率之间的横断面关联，同时控制了个体和社区特征。
在调整后的分析中，快餐店的数量与非城市或低或高密度城市地区的每周快餐消费频率无关。
旨在减少社区快餐店数量以减少年轻人快餐消费的政策可能不会成功。未来的研究需要考虑学校或工作场所附近的快餐店、更城市化或欠城市化环境的特定因素，以及个体生活方式态度和偏好的作用。
