Table 4.

Changes in the sugar content of non-alcoholic beverage purchases by LSM level (g/capita/day).

	Pre-interim		Interim-post		Cumulative
	Change	% of net change	Change	% of net change	Change	% of net change
LSM 4–6
Volume	−0.8	33.7	−1.5	38.1	−2.3	36.4
Reformulation	−0.4	15.6	−1.5	37.7	−1.8	29.0
Switching	−1.4	56.2	−1.4	35.7	−2.8	43.7
Net entry	0.0	1.1	0.0	−0.6	0.0	0.1
Other	0.2	−6.5	0.4	−11.0	0.6	−9.2
Net change	−2.5	100.0	−3.9	100.0	−6.4	100.0
LSM 7−10
Volume	−0.5	64.5	0.2	−10.9	−0.3	11.6
Reformulation	−0.2	24.8	−1.2	62.2	−1.4	51.0
Switching	0.0	−2.2	−0.9	45.8	−0.9	31.5
Net entry	−0.1	10.8	0.0	1.2	−0.1	4.1
Other	0.0	2.1	0.0	1.7	0.0	1.8
Net change	−0.8	100.0	−1.9	100.0	−2.8	100.0

Notes: Pre-announcement is January 2014-December 2015, interim is April 2016-March 2018, and post-implementation is April 2018-March 2019 (January-March 2016 excluded; see the methods section for details). Each row represents the change in the sugar content of middle-LSM households’ and high-LSM households’ non-alcoholic beverage purchases attributable to the corresponding decomposition factor. ‘Other’ captures the cross terms correcting for simultaneous volume and sugar concentration changes and the stratification term correcting for discrepancies in purchases of continuing, new, and discontinued beverages across LSM groups.

Source: Authors’ calculations based on household purchase data from South Africa Europanel (January 2014-March 2019).