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- Title
Did high sugar-sweetened beverage purchasers respond differently to the excise tax on sugar-sweetened beverages in Mexico?
- Authors
Ng, Shu Wen; Rivera, Juan A; Popkin, Barry M; Colchero, M Arantxa
- Abstract
<bold>Objective: </bold>To estimate changes in taxed and untaxed beverages by volume of beverage purchased after a sugar-sweetened beverage (SSB) tax was introduced in 2014 in Mexico.<bold>Design: </bold>We used household purchase data from January 2012 to December 2015. We first classified the sample into four groups based on pre-tax purchases of beverages: (i) higher purchases of taxed beverages and lower purchases of untaxed beverages (HTLU-unhealthier); (ii) higher purchases of both types of beverages (HTHU); (iii) lower purchases of taxed and untaxed beverages (LTLU); and (iv) lower purchases of taxed beverages and higher purchases of untaxed beverages (LTHU-healthier). Next, we estimated differences in purchases after the tax was implemented for each group compared with a counterfactual based on pre-tax trends using a fixed-effects model.<bold>Setting: </bold>Areas with more than 50 000 residents in Mexico.<bold>Participants: </bold>Households (n 6089).<bold>Results: </bold>The HTLU-unhealthier and HTHU groups had the largest absolute and relative reductions in taxed beverages and increased their purchases of untaxed beverages. Households with lower purchases of untaxed beverages (HTLU-unhealthier and LTLU) had the largest absolute and relative increases in untaxed beverages. We also found that among households with higher purchases of taxed beverages, the group with lowest socio-economic status had the greatest reduction in purchases of taxed beverages.<bold>Conclusions: </bold>Evidence associating the SSB tax with larger reductions among high purchasers of taxed beverages prior to the tax is relevant, as higher SSB purchasers have a greater risk of obesity, diabetes and other cardiometabolic outcomes.
- Subjects
MEXICO; EXCISE tax; BEVERAGES
- Publication
Public Health Nutrition, 2019, Vol 22, Issue 4, p750
- ISSN
1368-9800
- Publication type
journal article
- DOI
10.1017/S136898001800321X