Efficacy of a smoking prevention programme in Catalan secondary schools: a cluster-randomized controlled trial in Spain.

AIMS: To evaluate the efficacy of a school-based educational programme in reducing the incidence and prevalence of smoking in secondary school students (compulsory secondary education: CSE) in Catalonia (Spain). DESIGN: Cluster-randomized controlled trial. SETTING: Schools in the Tarragona Health Care Region of Spain. PARTICIPANTS: All students enrolled in the first year of CSE during the 2007-08 school year in the 29 participating schools (n = 2245); 1583 students completed the follow-up over the 4-year study period (804 and 779 in the control and intervention groups, respectively). MEASURES: Self-reported questionnaires were administered during the first quarter of the 2007, 2008, 2009 and 2010 school years. A smoker was defined as 'smoking cigarettes daily or occasionally within the past 30 days'. Multi-level logistic regression analysis was conducted to analyse the prevalence and incidence of smoking between the intervention and control groups. INTERVENTION: A school-based educational programme comprising seven modules, each with a different approach to smoking habits. Each module included activities, work-shops and/or class sessions. FINDINGS: The initial prevalence of smokers in the control and intervention groups who completed the follow-up was 3.9% and 4.2%, respectively. At the end of the study, the prevalence of smokers was 24.4% in the control group and 19.9% in the intervention group. The accumulated incidence of new smokers was 230.57/1000 in the control group and 183.65/1000 in the intervention group. The adjusted odds ratio (OR) comparing the intervention group with the control group was 0.75 [95% confidence interval (CI) = 0.49, 1.15] for smoking prevalence, and 0.74 (95% CI = 0.48, 1.14) for smoking incidence. CONCLUSIONS: A school-based educational intervention for secondary school students in Catalonia, Spain was not found to lead to a statistically significant reduction of smoking prevalence and incidence.

Efficacy of a mobile application for smoking cessation in young people: study protocol for a clustered, randomized trial.

BACKGROUND: Tobacco consumption is the most preventable cause of morbidity-mortality in the world. One aspect of smoking cessation that merits in-depth study is the use of an application designed for smartphones (app), as a supportive element that could assist younger smokers in their efforts to quit. To assess the efficacy of an intervention that includes the assistance of a smoking cessation smartphone application targeted to young people aged 18 to 30 years who are motivated to stop smoking. METHODS/DESIGN: Cluster randomised clinical trial. SETTING: Primary Health Care centres (PHCCs) in Catalonia. Analyses based on intention to treat. PARTICIPANTS: motivated smokers of 10 or more cigarettes per day, aged 18 to 30 years, consulting PHCCs for any reason and who provide written informed consent to participate in the trial. Intervention group will receive a 6-month smoking cessation programme that implements recommendations of a Clinical Practice Guideline, complemented with a smartphone app designed specifically for this programme. Control group will receive the usual care. The outcome measure will be abstinence at 12 months confirmed by exhaled-air carbon monoxide concentration of at least 10 parts per million at each control test. DISCUSSION: To our knowledge this is the first randomised controlled trial of a programme comparing the efficacy of usual care with a smoking cessation intervention involving a mobile app. If effective, the modality could offer a universal public health management approach to this common health concern. TRIAL REGISTRATION: NCT01734421.