Trial reportAddictive behaviors2007
Short-term effects of Project EX-4: a classroom-based smoking prevention and cessation intervention program.
Trial report in Addictive behaviors, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 2 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
19 citing papers in PubMed, 2 syntheses or guidelines pooled it, 39 citations in OpenAlex.
- School-based programmes for preventing smoking.The Cochrane database of systematic reviews · 2013Pooled it
- Smoking cessation for adolescents: a review of pharmacological and psychosocial treatments.Current drug abuse reviews · 2008Pooled it
- Effectiveness of a School Based Smokeless Tobacco Intervention: A Cluster Randomized Trial.Journal of community health · 2019Trial
- Proactive telephone counseling for adolescent smokers: Comparing regular smokers with infrequent and occasional smokers on treatment receptivity, engagement, and outcomes.Drug and alcohol dependence · 2016Trial
- Six-months follow-up of a cluster randomized trial of school-based smoking prevention education programs in Aceh, Indonesia.BMC public health · 2015Trial
- One-Year Effects of Project EX in Spain: A Classroom-Based Smoking Prevention and Cessation Intervention Program.PloS one · 2015Trial
- The impact of education programs on smoking prevention: a randomized controlled trial among 11 to 14 year olds in Aceh, Indonesia.BMC public health · 2013Trial
- Six-month and one-year effects of project EX-4: a classroom-based smoking prevention and cessation intervention program.Addictive behaviors · 2007Trial
- A Systematized Review of Traumatic Stress and Substance Use Interventions in Young Adults: Implications for Intervention Development with Young Adults Experiencing Homelessness.Community mental health journal · 2026Article
- Role of smoking intention in tobacco use reduction: A mediation analysis of an effective classroom-based prevention/cessation intervention for adolescents.Addictive behaviors · 2018Article
- Two-Year Effects of a Classroom-Based Smoking Prevention and Cessation Intervention Program.European addiction research · 2017Article
- Shisha Smoking Practices, Use Reasons, Attitudes, Health Effects and Intentions to Quit among Shisha Smokers in Malaysia.International journal of environmental research and public health · 2016Article
- Project EX-India: A classroom-based tobacco use prevention and cessation intervention program.Addictive behaviors · 2016Article
- Nicotine Dependence as a Mediator of Project EX's Effects to Reduce Tobacco Use in Scholars.Frontiers in psychology · 2016Article
- Immediate and six-month effects of Project EX Russia: a smoking cessation intervention pilot program.Addictive behaviors · 2013Article
- A review of culturally targeted/tailored tobacco prevention and cessation interventions for minority adolescents.Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco · 2012Review
- Intervention effects on tobacco use in Arab and non-Arab American adolescents.Addictive behaviors · 2010Article
- Adolescent smoking and depression: evidence for self-medication and peer smoking mediation.Addiction (Abingdon, England) · 2009Article
- Therapy for specific problems: youth tobacco cessation.Annual review of psychology · 2009Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 1 institution in 1 country.
Funding
Abstract
objectiveResearchers continue to try to develop effective teen tobacco use prevention and cessation programs. Three previous school clinic-based studies established the efficacy of Project EX for teen smoking cessation. This fourth study adapts Project EX to the classroom context. This paper reports the findings based on pretest and posttest surveys conducted immediately prior and post-intervention.
methodsAn eight-session classroom-based curriculum was developed and tested with a randomized controlled trial that involved a total of 1097 students in six program and six control continuation high schools. Program-specific knowledge and smoking measures were assessed at both the pretest and posttest surveys, and were used to evaluate the program's effect on the immediate outcomes. The immediate outcomes effects were analyzed with multi-level random coefficients models.
resultsProgram students provided favorable process ratings of the overall program and each session. Compared with the students in the control condition, students in the program condition showed a greater change in correct knowledge responses from pretest to posttest (beta=+5.5%, p=0.0003). Students in the program condition also experienced a greater reduction in weekly smoking (beta=-6.9%, p=0.038), and intention for smoking in the next 12 months (beta=-0.21 in 5-level scale, p=0.023).
conclusionsEX-4 immediate outcome results revealed favorable student responses to the program, increases in knowledge, and decreases in smoking relative to a standard care control condition.
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What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.