Smoky Futures: Danish Adolescent Nicotine Use over Time

Is this trial a fit for you?

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

The §SMOKE Cohort Study is a national, prospective longitudinal cohort that tracks tobacco and nicotine use among adolescents and young adults in Denmark. It aims to map trajectories, transitions between products, and factors such as individual characteristics and social influences that affect initiation, escalation, cessation, relapse, and switching. By following participants recruited from the 2026 §SMOKE survey (about 10,000 people), the study will analyze how different usage patterns relate to educational, health, and social outcomes. The research responds to rapid changes in the nicotine landscape, including cigarettes, e-cigarettes, nicotine pouches, heated products, and other nicotine devices. This design focuses on understanding development over time rather than measuring a single intervention effect.

Why it matters

Who can join: the full rules

Inclusion Criteria:

* Aged 15 to 25 years at the time of baseline
* Resident in Denmark
* Participated in the 2026 §SMOKE survey

Exclusion Criteria:

* Not resident in Denmark at the time of baseline survey participation
* Younger than 15 years or older than 25 years at baseline

Where it's running

• The National Institute of Public Health
  Copenhagen, Denmark Recruiting

Study contacts

• Principal investigator: Lisbeth Lund, Postdoc — The National Institute of Public Health, University of Southern Denmark
• Study coordinator: Lisbeth Lund, Postdoc
• Email: lilu@sdu.dk
• Phone: 004523902724

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How to take part

1. Review the eligibility criteria above with your treating physician.
2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.