After Mexico Implemented a Tax, Purchases of Sugar-Sweetened Beverages Decreased and Water Increased: Difference by Place of Residence, Household Composition, and Income Level
After Mexico Implemented a Tax, Purchases of Sugar-Sweetened Beverages Decreased and Water Increased: Difference by Place of Residence, Household Composition, and Income Level
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DOI：
10.3945/jn.117.251892
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发表时间：
2017-08-01
影响因子：
4.2
通讯作者：
Guerrero-Lopez, Carlos M.
中科院分区：
文献类型：
--
作者：
Arantxa Colchero, M.;Molina, Mariana;Guerrero-Lopez, Carlos M.
背景资料：2014年1月，墨西哥对含糖饮料（SSB）的购买征收1比索/升的税。目的：我们研究了非酒精饮料变化的异质性。（SSB和瓶装水）税后购买量按家庭收入、城乡阶层和家庭构成实施。方法：我们使用了4轮国民收入和支出调查：2008年、2010年、2012年和2014年。使用两部分模型估计了每周人均公升购买量的变化，以调整非购买量。我们比较了2014年观察到的采购量调整后变化与基于先前趋势（2008-2012年）的2014年预期采购量之间的绝对和相对差异。该模型进行了调整的社会人口特征的家庭，居住地，和落后的人均国内生产总值。结果：我们发现，在观察到的购买SSB在2014年相比，在同一年的预期购买量减少了6.3%，根据2008年至2012年的趋势。低收入家庭、居住在城市地区的居民和有子女的家庭的降幅更大。我们还发现，16.2%的增加，在低收入和中等收入的家庭，在城市地区，以及与成人之间的家庭购买的水是更高的。结论：SSB购买减少和水购买增加后，SSB税在墨西哥实施。这些变化的幅度在低收入家庭和城市家庭中更大。
Background: In January 2014, Mexico implemented a tax on sugar-sweetened beverage (SSB) purchases of 1 peso/L.Objective: We examined the heterogeneity of changes in nonalcoholic beverage (SSB and bottled water) purchases after the tax was implemented by household income, urban and rural strata, and household composition.Methods: We used 4 rounds of the National Income and Expenditure Surveys: 2008, 2010, 2012, and 2014. Changes in purchases in per capita liters per week were estimated with the use of 2-part models to adjust for nonpurchases. We compared absolute and relative differences between adjusted changes in observed purchases in 2014 with expected purchases in 2014 based on prior trends (2008-2012). The models were adjusted for sociodemographic characteristics of the households, place of residence, and lagged gross domestic product per capita.Results: We found a 6.3% reduction in the observed purchases of SSBs in 2014 compared with the expected purchases in that same year based on trends from 2008 to 2012. These reductions were higher among lower-income households, residents living in urban areas, and households with children. We also found a 16.2% increase in water purchases that was higher in low-and middle-income households, in urban areas, and among households with adults only.Conclusions: SSB purchases decreased and water purchases increased after an SSB tax was imposed in Mexico. The magnitude of these changes was greater in lower-income and urban households.