… , it was not possible to conduct a statistical meta-analysis of program effectiveness… substance
abuse prevention programs (ie, this review is not solely focused on school-based programs)…

… ; (2) determined populations, for instance, university students and students with specific
mental health or drug abuse issues; (3) studies concerning mental health first aid; (4) MHL …

… Meta-analysis of effectiveness on mental health problems at … Conduct Problems Prevention
Research Group; ES, effect size. … of this meta-analysis support the concept that school anti-…

… effectiveness of school-based bullying prevention programs. Its main aim is to explore the
results of this meta-analysis … in reducing bullying perpetration, followed by Spain and Norway. …

… , covering issues such as: empathy; communication; bullying; emotion regulation; problem
solving; and substance abuse prevention 3658 students from 36 schools in Illinois and Kansas…

… found school-based interventions targeting change in multiple health behaviours to be effective
in preventing substance use … has specifically examined preventive eHealth school-based …

… effect sizes) were eligible for inclusion in our meta-analysis. Most of the effect sizes are estimated
from studies … ; problem solving; and substance abuse prevention 3658 students from 36 …

… Some studies revealed that substance use was associated with higher levels of depression
(Stain et al., 2018). Young people with substance use living in rural areas were more likely to …

… However, studies that were published in Spanish and Turkish languages were also … this
meta-analysis, positive values indicate a treatment effect as the goal of the intervention programs …

… This identified 48 studies published as early as 1987. … on anxiety, mood and substance use
disorders among young people … Only two studies (conducted in Castile and Leone in Spain […