For example, a tobacco - focused review which included any intervention type, classified interventions with a component
of resilience content into different subgroups such as social
competence or social influence interventions, finding evidence for both broad intervention approaches.6 For the alcohol - focused review, only universal interventions were included with such interventions
grouped according to whether they
targeted alcohol alone or
targeted multiple substance types.5 While meta - analysis was not conducted due to the heterogeneity
of studies, the review concluded that some psychosocial and developmental prevention programmes were effective.