Evidence map›Paper›PMID 35249582›Full record

ArticlePublic health nutrition2022

South Africa's Health Promotion Levy on pricing and acquisition of beverages in small stores and supermarkets.

Alexandra Ross, Elizabeth C Swart, Tamryn Frank, Caitlin M Lowery, Shu Wen Ng

Abstract read
In one paragraph

Article in Public health nutrition, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

5 citing papers in PubMed.

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4 · The record

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PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Alexandra RossDepartment of Nutrition, Gillings School of Global Public Health and Carolina Population Center, University of North Carolina, Chapel Hill, NC27599-8120, USA.ORCID https://orcid.org/0000-0003-0349-2605
Elizabeth C SwartDepartment of Dietetics and Nutrition, University of the Western Cape, Cape Town, Republic of South Africa.
Tamryn FrankSchool of Public Health, University of the Western Cape, Cape Town, Republic of South Africa.ORCID https://orcid.org/0000-0002-5180-9171
Caitlin M LoweryDepartment of Nutrition, Gillings School of Global Public Health and Carolina Population Center, University of North Carolina, Chapel Hill, NC27599-8120, USA.
Shu Wen NgDepartment of Nutrition, Gillings School of Global Public Health and Carolina Population Center, University of North Carolina, Chapel Hill, NC27599-8120, USA.ORCID https://orcid.org/0000-0003-0582-110X

Funding

Research Services CoreP2CHD050924 · NICHD · UNIV OF NORTH CAROLINA CHAPEL HILL · PI KAREN B GUZZO · 2015 to 2026
$9.6M
NICHD NIH HHS P2C HD050924
6 · The paper itself

Abstract

objectiveIn response to concern over rising sugar-sweetened beverage (SSB) consumption, in April 2018, South Africa became the first Sub-Saharan African (SSA) country to implement an SSB tax. We assess changes in pricing and acquisition of beverages from local supermarkets and small stores among 18-39-year-old adults living in one township in the Western Cape, before and after tax implementation. This study is among the first evaluations of an SSB tax on the local food environment in a low-income township.

designStore beverage pricing and participant surveys were cross-sectional, analysed 1 month before and 11 months after implementation of the tax (March 2018 and March 2019).

settingLanga, Western Cape, South Africa.

participantsSurveyed participants were residents of Langa between 18 and 39 years old (

resultsPrices of taxed SSB increased significantly among small shops and supermarkets between 2018 and 2019. There were non-significant decreases in prices of untaxed beverages in small shops, but prices of untaxed beverages increased in supermarkets. Across all store types, there was a 9 percentage point decrease in the probability of purchasing regular soda weekly pre/post-implementation. Reductions in purchasing were larger in small shops than supermarkets.

conclusionsWe found some differential impacts of the levy on pricing and acquisition of beverages by retailer type in one low-income township. As other SSA countries consider similar fiscal policies to curb soda consumption, obesity and related diseases, this work can be used to understand the implications of these policies in the retail setting.

Indexed as

Food environmentFood policySouth AfricaSSB taxSugar-sweetened beverage

Identifiers

PMID35249582
PMCPMC9991735

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LicenceCC BY
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.