Equity of expenditure changes associated with a sweetened-beverage tax in Tonga: repeated cross-sectional household surveys.

ABSTRACT:

Background

The aim of this study was to examine changes in beverage expenditure patterns before and after a T$0.50/L sweetened-beverage (SB) excise was introduced in Tonga in 2013, by household income, household age composition and island of residence.

Methods

Two cross-sectional surveys involved households being randomly sampled (the Household Income and Expenditure Surveys in 2009 (n = 1982) and 2015/16 (n = 1800)). Changes in soft drink (taxed), bottled water, and milk (both untaxed) expenditure were examined namely: (i) prevalence of households purchasing the beverage; (ii) average expenditure per person (inflation-adjusted); (iii) expenditure as a proportion of household food budget; and (iv) expenditure per person as a proportion of equivalised income.

Results

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SUBMITTER: Teng A 

PROVIDER: S-EPMC7812720 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature