An economic analysis of community-level fast food prices and individual-level fast food intake: a longitudinal study.
An economic analysis of community-level fast food prices and individual-level fast food intake: a longitudinal study.
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DOI：
10.1016/j.healthplace.2011.07.011
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发表时间：
2011-11
期刊：
影响因子：
4.8
通讯作者：
Popkin BM
中科院分区：
文献类型：
--
作者：
Gordon-Larsen P;Guilkey DK;Popkin BM
虽然饮食摄入量是由成本决定的，但关于社区层面的食品价格和饮食摄入量之间的关系的研究很少。我们使用具有全国代表性的纵向数据，在158个基线和363个美国县的第二波(1996年)和第三波(2001-02)全国青少年健康纵向研究(n=11088)中，研究了社区水平的食品价格变化与按种族/民族和收入划分的个人水平快餐摄入量的关系。预测每周快餐餐数的负二项回归模型显示，快餐消费与快餐和苏打水的价格之间存在很强的关系，这些关系因性别和种族/民族而异。我们发现，男性的食品价格和快餐摄入量之间的关联性相对较强，对碳酸饮料和汉堡的价格敏感度相对较高。在关联性最强的人群(黑人男性)中，苏打水价格上涨20%，每周去快餐店的次数减少0.25次。经济激励可能是解决肥胖高危年龄段快餐摄入量问题的有效机制。
While dietary intake is shaped by cost, there is minimal research on the association between community-level food prices and dietary intake. We used nationally representative, longitudinal data to examine how community-level food price variation was associated with individual-level fast food intake by race/ethnicity and income across waves II (1996) and III (2001–02) of The National Longitudinal Study of Adolescent Health (n=11,088) from 158 baseline and 363 follow-up US counties. Negative binomial regression models predicting the number of fast food meals per week show strong relationships between fast food consumption and prices of fast food and soda that varied by gender and race/ethnicity. We found relatively stronger association between food prices and fast food intake for males and relatively greater price sensitivity for soda versus burgers. In the group with strongest associations (black males), a 20% increase in price of soda was associated with a decrease of a 0.25 visits to a fast food restaurant per week. Economic incentives may be an effective mechanism to address fast food intake in an age group at high risk for obesity.
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