Modelling the implications of regular increases in tobacco taxation in the tobacco endgame

Cobiac, Linda J., Ikeda, Tak, Nghiem, Nhung, Blakely, Tony and Wilson, Nick (2014) Modelling the implications of regular increases in tobacco taxation in the tobacco endgame. Tobacco Control, 1-8. doi:10.1136/tobaccocontrol-2014-051543

Author Cobiac, Linda J.
Ikeda, Tak
Nghiem, Nhung
Blakely, Tony
Wilson, Nick
Title Modelling the implications of regular increases in tobacco taxation in the tobacco endgame
Journal name Tobacco Control   Check publisher's open access policy
ISSN 0964-4563
Publication date 2014-08-21
Year available 2014
Sub-type Article (original research)
DOI 10.1136/tobaccocontrol-2014-051543
Open Access Status
Start page 1
End page 8
Total pages 8
Place of publication London, United Kingdom
Publisher B M J Group
Collection year 2015
Language eng
Formatted abstract
Objective We examine the potential role for taxation in the tobacco endgame in New Zealand, where the goal is to become ‘smokefree’ (less than 5% smoking prevalence) by 2025.

Design Modelling study using a dynamic population model.

Setting and participants
New Zealand, Māori and non-Māori men and women.

Interventions Annual increases in tobacco excise tax of 5%, 10%, 15% and 20% (with 10% reflecting the annual increase recently legislated by the New Zealand Government to 2016).

Results With a continued commitment to annual 10% increases in tobacco excise tax, in addition to on-going Quitline and cessation support, New Zealand's smoking prevalence is projected to fall from 15.1% in 2013 to 8.7% (95% uncertainty interval 8.6% to 8.9%) by 2025. This is compared to 9.9% without any further tax rises. With annual tax increases of 20%, the prevalence is projected to fall to 7.6% (7.5% to 7.7%) by 2025. The potential reductions in smoking prevalence are substantial for both Māori and non-Māori populations, although annual tax increases as high as 20% will still only see Māori smoking prevalence in 2025 approaching the non-Māori smoking levels for 2013. Scenario analyses did not suggest that growth of the illicit tobacco market would substantively undermine the impact of tobacco tax rises. Nevertheless, unknown factors such as the gradual denormalisation of smoking and changes to the ‘nicotine market’ may influence sensitivity to changes in tobacco prices in the future.

Conclusions Regular increases in tobacco taxation could play an important role in helping to achieve tobacco endgames. However, this modelling in New Zealand suggests that a wider range of tobacco endgame strategies will be needed to achieve a smoke-free goal of less than 5% prevalence for all social groups—a conclusion that could also apply in other countries.
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Published online ahead of print 21 August 2014

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2015 Collection
School of Public Health Publications
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