Exploring youth vaping in New Zealand intermediate and high schools: a mixed-methods study protocol

Electronic nicotine delivery systems (ENDS) represent a global growing public-health concern among adolescents. In Aotearoa New Zealand (NZ), daily vaping rates have risen sharply (10.5%) among 15–17-year-olds in 2023/24. This is alarming due to nicotine’s addictive nature and its impact on adolescent brain development, mental health, and academic performance. Māori youth and those in socio-economically deprived areas are disproportionately affected, exacerbating existing health-inequities. Legislative frameworks prohibit vaping on school premises, yet ease of access remains a concern. Punitive school responses are increasingly viewed as harmful and ineffective, highlighting an urgent need for evidence-based, health-centred interventions. This multiphase, mixed-methods study explores vaping within secondary schools on the East Coast, NZ. Phase 1 involves online surveys to collect quantitative data on vaping behaviours, targeting 1375 students to ensure sufficient statistical power. Initial qualitative data will be gathered alongside. Phase 2 employs in-depth interviews and focus groups with students (vapers/non-vapers) and staff to explore perceptions of health risks, access, and effectiveness of school responses. A rapid scoping review (RSR) will synthesise existing research on adolescent vaping in Oceanic countries, identifying behavioural patterns, legislative impacts, and gaps in the evidence base. This protocol addresses critical knowledge gaps by integrating quantitative and qualitative findings with a RSR. This study aims to inform the development of culturally appropriate, health-based, vape prevention and cessation strategies. Ultimately, findings may support a paradigm shift away from punitive disciplinary measures towards supportive school-based interventions, that improve public-health outcomes and reduce health inequities.