An Internet-Based Intervention to Promote Alcohol-Related Attitudinal and Behavioral Change Among Adolescents: Protocol of a Cluster Randomized Controlled Trial

Social features in internet-based programs to prevent alcohol consumption among adolescents: a scoping review

Alcohol consumption among adolescents is a social and public health issue. School-based programs are needed to prevent the onset of alcohol consumption during adolescence. Information and communication technologies offer new promising approaches to deliver preventive programs to these populations. The most traditional, successful programs use group dynamics within the classroom. However, the usefulness of social interaction features (SIF) within internet-based interventions remains unclear. The current scoping review aims to identify and evaluate the effectiveness of online and mobile psychosocial preventive interventions that use SIF, and that target adolescents. Web of Science, Scopus and Google Scholar were electronically searched for all articles published between January 2011 and December 2020. Articles reporting on school-based, web-based interventions for adolescents to prevent alcohol consumption and that encouraged any kind of interaction between users ('social interactions') were eligible for inclusion. Fourteen articles were included in the review. These articles assessed eight preventive programs. Six programs showed positive results on outcome variables. In two of them, it was possible to determine that their success was partially due to the SIF. SIF seem to be useful to enhance the receptivity and usefulness of web-based prevention programs, but the current evidence of their effectiveness is scarce. More evidence is required to assess the effectiveness of these features and to improve programs having the objective of preventing the consumption of alcohol among young people.

An Internet Quiz Game Intervention for Adolescent Alcohol Drinking: A Clustered RCT

BACKGROUND AND OBJECTIVES

Interventions on adolescent drinking have yielded mixed results. We assessed the effectiveness of an Internet quiz game intervention compared to conventional health education.

METHODS

In this cluster randomized controlled trial with parallel group design, we randomly allocated 30 participating schools to the Internet quiz game intervention or the conventional health education (comparison) group, with 1:1 ratio. Students of Hong Kong secondary schools (aged 12-15 years) were recruited. The intervention was a 4-week Web-based quiz game competition in which participating students answered 1000 alcohol-related multiple-choice quiz questions. The comparison group received a printed promotional leaflet and hyperlinks to alcohol-related information.

RESULTS

Of 30 eligible schools, 15 (4294 students) were randomly assigned to the Internet quiz game intervention group and 15 (3498 students) to the comparison group. Average age of participants was 13.30 years. No significant between-group differences were identified at baseline. Overall retention rate for students was 86.0%. At 1-month follow-up, fewer students in the intervention group reported drinking (9.8% vs 12.1%, risk ratio 0.79, 95% confidence interval [CI] 0.68 to 0.92; P = .003), and those who drank reported drinking less alcohol (standardized difference β -0.06, 95% CI -0.11 to -0.01; P = .02). Between-group differences remained statistically significant at 3-month follow-up (10.4% vs 11.6%, risk ratio 0.86, 95% CI 0.74 to 0.999; P = .048; β -0.06, 95% CI -0.11 to -0.01; P = .02).

CONCLUSIONS

The Internet quiz game intervention reduced underage drinking by 21% at 1-month and 14% at 3-month follow-up compared with conventional health education.