Pitt Allison, Bendavid Eran
Department of Management Science & Engineering, Stanford University, Stanford, California, United States of America.
Division of General Medical Disciplines, Stanford University, Stanford, California, United States of America.
PLoS One. 2017 Jan 3;12(1):e0168710. doi: 10.1371/journal.pone.0168710. eCollection 2017.
There are large differences in the burden and health implications of obesity by race and gender in the US. It is unclear to what extent policies modifying caloric consumption change the distribution of the burden of obesity and related health outcomes. Meat is a large component of the American diet. We investigate how changing meat prices (that may result from policies or from exogenous factors that reduce supply) might impact the burden of obesity by race and gender.
We construct a microsimulation model that evaluates the 15-year body-mass index (BMI) and mortality impact of changes in meat price (5, 10, 25, and 50% increase) in the US adult population stratified by age, gender, race, and BMI.
Under each price change evaluated, relative to the status quo, white males, black males, and black females are expected to realize more dramatic reduction in 2030 obesity prevalence than white females. Life expectancy gains are also projected to differ by subpopulation, with black males far less likely to benefit from an increase in meat prices than other groups.
Changing meat prices has considerable potential to affect population health differently by race and gender. In designing interventions that alter the price of foods to consumers, it is not sufficient to assess health effects based solely on the population as a whole, since differential effects across subpopulations may be substantial.
在美国,肥胖的负担及其对健康的影响因种族和性别存在巨大差异。目前尚不清楚改变热量摄入的政策在多大程度上会改变肥胖负担及相关健康结果的分布情况。肉类是美国饮食的重要组成部分。我们研究了肉类价格变化(可能由政策或减少供应的外部因素导致)如何影响不同种族和性别的肥胖负担。
我们构建了一个微观模拟模型,评估美国成年人群按年龄、性别、种族和体重指数分层后,肉类价格变化(上涨5%、10%、25%和50%)对15年体重指数(BMI)和死亡率的影响。
在评估的每种价格变化情况下,与现状相比,预计到2030年,白人男性、黑人男性和黑人女性的肥胖患病率下降幅度将比白人女性更为显著。不同亚人群的预期寿命增长也预计会有所不同,黑人男性从肉类价格上涨中受益的可能性远低于其他群体。
改变肉类价格有很大潜力对不同种族和性别的人群健康产生不同影响。在设计改变食品价格的干预措施时,仅基于总体人群评估健康影响是不够的,因为不同亚人群的差异影响可能很大。