Designing a Smoking Intervention for Youth Smokers Using Q-Methodology: A Pilot Randomized Controlled Trial

The typology-based intervention includes: (1) typology-based counselling, (2) personalized E-message based on the counselling content discussed (3) a booklet introducing the typology of quit identity. All interventions and materials are delivered by smoking counselling.

The routine smoking cessation intervention includes: (1) Routine counselling generic advice on preventing smoking relapse (2) Brief e-messages that consist of general quit advice for 4 weeks. Counsellors implement both routine practices.