Smoking prevention and reduction Other
Conditions
Interventions
Block randomization will be performed using a computer-generated random number list prepared by an investigator with no involvement in the trial. Groups will be randomly allocated to intervention or c
in August 2018 (for the autumn semester of 2018), and in August 2019 (for the autumn semester of 2019). They will use an adaptive design. Based on baseline data collected in the autumn semester of 201
the schools may prefer this project because they do not need to use resources on research-based activities (i.e., time spend on fulfilling questionnaire, the uncertainty of randomization etc.).
This
Sponsors
University of Southern Denmark
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: Schools: 1. Are vocational high schools 2. Have students in basic course classes Students: 1. Entering the basic course of a vocational upper-secondary education 2. Are in a school and a class participating in the study
Exclusion criteria
Exclusion criteria: Does not meet inclusion criteria
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Self-reported number of cigarettes per day, assessed by student questionnaire at baseline and post-intervention (intervention and comparison groups). The trialists also plan to undertake 6 and 12 month follow-up. However, this will only be reported if the response rate is acceptable. | — |
Secondary
| Measure | Time frame |
|---|---|
| Student outcomes, measured by questionnaire unless otherwise stated, at baseline and 4 months (at the end of the semester) (intervention and comparison groups). The trialists also plan data collections at 10 and 16 months; however, this will only be reported if the response rate is acceptable: 1. Self-reported smoking status 2. Self-reported intention to quit smoking/not to take up smoking 3. Self-reported nicotine dependence according to the Heavy Smoking Index (HSI) 4. Self-reported smoking during school hours 5. Perceived social norms about smoking 6. Smoking cessation self-efficacy/refusal skills (among smokers) 7. Beliefs about social and psychological benefits of smoking 8. Perceived student and teacher support 9. School connectedness 10. Perceived access to smoking cessation support 11. Acceptability of intervention components (student responsiveness) 12. Self-reported use of e-cigarettes, snuff, or hookah 13. School dropout (register-based) Teacher outcomes, measured by questionnaire at baseline and 2 months (only the intervention group): 1. Self-reported smoking status 2. Perceived social norms regarding smoking at school 3. Implementation readiness (motivation, general capacity, specific capacity) (pre-intervention) 4. Level of implementation fidelity (adherence, dose, quality, responsiveness) (post-intervention) Principal outcomes, measured by questionnaire at baseline and 4 months (only the intervention group): 1. Implementation readiness (motivation, general capacity, specific capacity) (pre-intervention) 2. Level of implementation fidelity (adherence, dose, quality, responsiveness) (post-intervention) The primary and secondary student outcome measures will be analyzed for different subpopulations defined by gender, age and socioeconomic position (student questionnaire) and by implementation readiness and degree of implementation (principal questionnaire and teacher questionnaire). Sustainability: whether the project continues at intervention | — |
Countries
Denmark
Outcome results
None listed