biostudies-literatureLevy DTNational Cancer InstituteNational Health and Medical Research CouncilNCI NIH HHS486-497https://www.ebi.ac.uk/biostudies/studies/S-EPMC9910149biostudies-literatureUnknown25(3)<h4>Background</h4>We model the potential impact of relaxing current nicotine vaping product (NVP) restrictions on public health in Australia.<h4>Aims and methods</h4>A Restricted NVP Scenario was first developed to project current smoking and vaping rates, where a U.S. smoking model was calibrated to recent Australian trends. To model less restrictive NVP policies, a Permissive NVP Scenario applied rates of switching from smoking to vaping, initiation into NVP and cigarette use, and cessation from smoking and vaping based on U.S. trends. The model measures vaping risk relative to the excess mortality rate of smoking. The public health impacts are measured as the difference between smoking- and vaping-attributable deaths (SVADs) and life years lost (LYLs) in the Restricted and Permissive NNicotine & tobacco research : official journal of the Society for Research on Nicotine and TobaccoThe Australia Smoking and Vaping Model: The Potential Impact of Increasing Access to Nicotine Vaping Products.PMC9910149P01 CA200512P01CA200512GNT1198301Gartner CBorland RLi YLiber ACLevy DTCummings KMYuan ZSanchez-Romero LMfalseThe Australia Smoking and Vaping Model: The Potential Impact of Increasing Access to Nicotine Vaping Products.<h4>Background</h4>We model the potential impact of relaxing current nicotine vaping product (NVP) restrictions on public health in Australia.<h4>Aims and methods</h4>A Restricted NVP Scenario was first developed to project current smoking and vaping rates, where a U.S. smoking model was calibrated to recent Australian trends. To model less restrictive NVP policies, a Permissive NVP Scenario applied rates of switching from smoking to vaping, initiation into NVP and cigarette use, and cessation from smoking and vaping based on U.S. trends. The model measures vaping risk relative to the excess mortality rate of smoking. The public health impacts are measured as the difference between smoking- and vaping-attributable deaths (SVADs) and life years lost (LYLs) in the Restricted and Permissive N2023-01-01T00:00:00Z2023 Feb2026-03-18T13:46:39.195Z2025-04-04T18:43:27.032ZS-EPMC99101493607373110.1093/ntr/ntac210