Jamie Hartmann-Boyce and Nicola Lindson discuss emerging evidence in e-cigarette research and interview Monserrat Conde from the University of Oxford. Associate Professor Jamie Hartmann-Boyce and Associate Professor Nicola Lindson discuss the new evidence in e-cigarette research and interview Dr Monserrat Conde from the Nuffield Department of Primary Care Health Sciences, University of Oxford. In the March podcast Monserrat Conde discusses the findings of the recent systematic review of electronic cigarettes and subsequent smoking in young people and an evidence and gap map. The systematic review aims to assess the evidence for a relationship between the use of e-cigarettes /vapes and subsequent smoking in young people under 30, and whether this differs by demographic characteristics. There is very low certainty evidence suggesting that e-cigarette use and availability are inversely associated with smoking in young people (i.e. as e-cigarettes become more available and/or are used more widely, youth smoking rates go down or, conversely, as e-cigarettes are restricted, youth smoking rates go up). At an individual level, people who vape appear to be more likely to go on to smoke than people who do not vape; however, it is unclear if these behaviours are causally linked. Monserrat discusses the differences in the information coming from the population studies compared to the individual level studies and notes that most studies are from high income countries, in particular from the US. To see the full review: https://doi.org/10.1111/add.16773 This podcast is a companion to the electronic cigarettes Cochrane living systematic review and Interventions for quitting vaping review and shares the evidence from the monthly searches. Our literature searches for the EC for smoking cessation review carried out on 1st March 2025 found 1 new study (DOI: 10.1016/j.drugalcdep.2024.112271), one new ongoing study (ACTRN12625000179437) and two records linked to studies included in the review. Our literature searches for the interventions for quitting vaping review carried out on 1st March 2025 found 2 new ongoing studies (NCT06832098, ACTRN12625000143426) and four records linked to studies included in the review. For further details see our webpage under 'Monthly search findings': https://www.cebm.ox.ac.uk/research/electronic-cigarettes-for-smoking-cessation-cochrane-living-systematic-review-1 For more information on the full Cochrane review of E-cigarettes for smoking cessation updated in January 2025 see: https://www.cochranelibrary.com/cdsr/doi/10.1002/14651858.CD010216.pub9/full For more information on the full Cochrane review of Interventions for quitting vaping published in January 2025 see: https://www.cochranelibrary.com/cdsr/doi/10.1002/14651858.CD016058.pub2/full This podcast is supported by Cancer Research UK.