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Table 2 Mean post-tax absolute and relative effects, by price tertile

From: Assessing the impact of the Barbados sugar-sweetened beverage tax on beverage sales: an observational study

   Mean Overall Final Week of Study
Absolute (mL/capita) Relative (%) Absolute (mL/capita/week) Relative (%)
Level Est CI Est CI Est CI Est CI
SSBs Low-cost −1.5 −2.0 to − 1.0 − 2.6 −3.4 to − 1.7 3.3 −2.0 to 8.5 5.5 −3.2 to 14.1
Mid-range 4.3 3.8 to 4.8 6.4 5.6 to 7.2 4.7 −0.6 to 9.9 7.1 − 0.7 to 14.8
High-cost −10.9 −11.4 to − 10.4 −14.4 − 15.1 to − 13.8 −17.7 −23.0 to − 12.4 −31.8 −42.7 to − 21.0
Carbonated SSBS Low-cost − 0.9 −1.3 to − 0.6 − 2.3 − 3.3 to − 1.4 − 2.5 − 6.7 to 1.7 − 7.1 − 19.2 to 5.1
Mid-range 1.2 0.8 to 1.6 6.5 4.2 to 8.6 1.3 −2.9 to 5.5 8.6 − 18.3 to 35.6
High-cost −4.6 −5.0 to − 4.2 − 7.2 − 7.8 to − 6.5 − 13.2 − 17.4 to − 9.0 −26.3 −35.7 to − 17.0
Other SSBs Low-cost 4.2 3.9 to 4.4 17.6 16.4 to 18.6 14.2 11.6 to 16.8 33.0 27.6 to 38.4
Mid-range −7.6 −7.9 to − 7.4 −23.7 −24.5 to − 22.9 −9.4 −12.0 to −6.8 −33.7 −44.5 to − 22.9
High-cost −0.2 − 0.5 to 0.0 − 0.9 −2.0 to 0.1 −1.0 − 3.6 to 1.6 − 3.6 −13.6 to 6.3
Non-SSBs Low-cost 4.7 4.4 to 5.0 11.3 10.6 to 12.1 6.6 3.3 to 9.8 11.9 6.3 to 17.4
Mid-range 1.8 1.5 to 2.1 4.9 4.1 to 5.8 2.7 −0.5 to 5.9 5.9 −1.1 to 13.0
High-cost −0.3 −0.6 to − 0.0 −0.9 −1.6 to − 0.1 −3.8 −7.0 to − 0.6 −9.2 −17.4 to − 1.1
Water Low-cost 1.1 0.9 to 1.4 5.1 4.1 to 6.2 2.2 −0.3 to 4.7 7.5 −0.8 to 15.9
Mid-range 3.3 3.1 to 3.5 14.5 13.5 to 15.5 4.5 2.0 to 7.0 14.1 6.6 to 21.5
High-cost 0.6 0.4 to 0.9 3.1 1.8 to 4.2 1.2 −1.3 to 3.7 4.7 −5.1 to 14.4
Other non-SSBs Low-cost 0.8 0.7 to 0.9 6.6 5.6 to 7.7 0.9 −0.4 to 2.3 6.5 −2.5 to 15.4
Mid-range 1.1 1.0 to 1.2 6.7 5.9 to 7.5 −1.8 −3.2 to −0.5 −11.0 − 19.6 to − 2.4
High-cost − 1.3 −1.4 to − 1.2 −5.7 −6.3 to − 5.2 − 2.7 −4.1 to − 1.4 −12.0 − 18.3 to − 5.8