Preventive medicine
-
Preventive medicine · Feb 2007
Randomized Controlled Trial Multicenter Study Clinical TrialA cluster randomized controlled trial of school-based prevention of tobacco, alcohol and drug use: the EU-Dap design and study population.
The empirical evidence of effectiveness of many school-based programs against substance abuse is rather weak. The EU-Dap study is a multicenter cluster randomized community trial (CRCT) designed to evaluate such a program. This paper presents study design and baseline characteristics of the study population. ⋯ EU-Dap is the first European multicenter randomized study to evaluate the effectiveness of a school program targeting tobacco, alcohol and drug use. The baseline assessment showed high prevalence and wide geographical variations of substance use.
-
Preventive medicine · Feb 2007
Multicenter StudyTesting anonymous link procedures for follow-up of adolescents in a school-based trial: the EU-DAP pilot study.
To study the feasibility of an anonymous coding procedure linking longitudinal information in a multi-center trial of substance abuse prevention among adolescents. ⋯ Self-generation of anonymous codes is a feasible, but not a very efficient procedure to link longitudinal data among adolescents. Easy derivation and iterative matching procedures are crucial for achieving high efficiency of this type of anonymous linkage.