The distributional impact of taxing sugar-sweetened beverages: findings from an extended cost-effectiveness analysis in South Africa.

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ID: 55515
2019
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Abstract
Facing increasing obesity prevalence and obesity-related disease burden, South Africa has devised an obesity prevention strategy that includes a recently implemented tax on the sugar content of sugar-sweetened beverages (SSB). We assess the potential distributional impact (across socioeconomic groups) of this tax on type 2 diabetes mellitus (T2DM) incidence and associated mortality and its financial burden on households.We conducted an extended cost-effectiveness analysis of the new 10% tax on SSBs in South Africa, and estimated: the averted premature deaths related to T2DM, the financial benefits to households (out-of-pocket (OOP) medical costs and indirect costs due to productivity losses averted), the increased government tax revenues and healthcare savings for the government, all across income quintiles.A 10% SSB tax increase would avert an estimated 8000 T2DM-related premature deaths over 20 years, with most deaths averted among the third and fourth income quintiles. The government would save about South African rand (ZAR) 2 billion (US$140 million) in subsidised healthcare over 20 years; and would raise ZAR6 billion (US$450 million) in tax revenues per annum. The bottom two quintiles would bear the smallest tax burden increase (36% of the additional taxes). The bottom two income quintiles would also have the lowest savings in OOP payments due to significant subsidisation provided by government healthcare. Lastly, an estimated 32 000 T2DM-related cases of catastrophic expenditures and 12 000 cases of poverty would be averted.SSB taxation would have a substantial distributional impact on obesity-related premature deaths, cost savings to the government and the financial outcomes of South Africa's population.
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saxena2019thebmj Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Saxena, Akshar;Stacey, Nicholas;Puech, Paula Del Ray;Mudara, Caroline;Hofman, Karen;Verguet, Stéphane;
Journal BMJ global health
Year 2019
DOI
10.1136/bmjgh-2018-001317
URL
Keywords
diabetes mellitus equity south africa sugar-sweetened beverages distributional impact extended cost-effectiveness analysis soda tax

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