Background
Adolescents are exposed to various risks for their health: substance use, Internet overuse, video game addiction, unhealthy diet (reduced intake of fruits and vegetables, fast food culture), low physical activity, overweight, stress, violence, unsafe sexual behaviours, self-medication. Health literacy is defined as the knowledge, motivation and competence to access, understand, appraise and apply right information to make decisions in terms of healthcare, disease prevention and health promotion. Despite the advancement of theoretical models, many national and international health promotion programs, the percentage of unhealthy behaviours still persist in young age. Objective: Current review proposes to assess the implementation and effectiveness of various interventions in order to identify possible success or failure factors.
Methods
Comprehensive Systematic review was performed. After three steps data searching (in PubMed, SCOPUS, Cochrane, PsycINFO, Google Scholar) and critical appraisal, 63 studies out of 739 were fully retrieved.
Results
Implementation aspects as intervention types (single or combined targeted risk factors), type of audience (students, parents, school staff, communities), settings (home, school or outdoor), type of organization (face to face, groups, online), professional or peer-led, communication type (written materials as brochures, posters or videoconferencing) or effectiveness measures were extracted and synthesized. Important features of context such as funding, European or government programs were used for clustering the studies.
Conclusions
Health literacy interventions in adolescents need the involvement of education staff and parents participation. Health literacy for adolescents has to take into account cultural context, language, psychological features of each age; either digital or non-digital interventions cannot elude face to face communication between adolescents and their parents, academics or peers.
Key messages
Health literacy school-based interventions are effective but the content for adolescents audience should rely on guidelines provided by interdisciplinary teams of experts. Health Literacy interventions in adolescents should be age-appropriate and do-not-harm precautions must always be taken in order to avoid prejudices, body-image or self-esteem concerns.
