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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