Cost-effectiveness and cost-utility analyses of a web-based computer-tailored intervention for prevention of binge drinking among Spanish adolescents

Beyond Confinement: A Systematic Review on Factors Influencing Binge Drinking Among Adolescents and Young Adults During the Pandemic

Objectives: This study aimed to enhance the understanding of factors influencing changes in binge drinking (BD) behavior during the COVID-19 pandemic, with a particular focus on its impact on the health of individuals aged 12 to 25 years. Methods: A systematic review was conducted, encompassing studies published between January 2020 and September 2024. Articles were retrieved from PubMed, Web of Science, and Scopus, following PRISMA guidelines and the Joanna Briggs Institute (JBI) review protocols. Inclusion criteria targeted studies focusing on BD during the COVID-19 pandemic in adolescents or school-aged individuals without specific medical conditions. Exclusions included studies limited to a single gender, ethnicity, or profession, as well as doctoral theses and editorials. JBI tools were used to assess the quality of the selected studies. Results: From 33 studies (19 cross-sectional and 14 longitudinal), trends in BD during the pandemic varied: 2 studies reported an increase, while 21 indicated a decrease. Key factors linked to increased BD included pandemic stressors (e.g., isolation, social disconnection and non-compliance with restrictions), psychosocial issues (e.g., depression, anxiety, boredom, and low resilience), prior substance use, and sociodemographic variables (e.g., low education, economic extremes, living arrangements, and limited family support). Female gender and academic disengagement were also risk factors. Conversely, factors like stay-at-home orders, fear of contagion, family support, studying health sciences, and resilient coping strategies contributed to reduced BD. Other variables, such as pandemic stress and self-efficacy, had inconsistent effects. Conclusions: Factors contributing to increased BD included pandemic-related stress, mental health conditions, and unhealthy habits, while protective factors included stay-at-home orders, social support, and resilient coping. The study highlights the need for effective prevention and intervention strategies, emphasizing a holistic approach in healthcare, early detection, and tailored interventions, particularly for vulnerable groups such as adolescents.

Effectiveness of web-based personalised feedback interventions for reducing alcohol consumption among university students: A systematic review and meta-analysis

ISSUES

Meta-analysis was conducted to examine standalone web-based personalised feedback interventions (PFI) delivered in non-structured settings for reducing university students' alcohol consumption. Subgroup analyses by gender-focus, type-of-content and accessibility were conducted. Characteristics of the sample, the intervention and study quality were examined as moderators.

APPROACH

Ten databases were searched from 2000 to 2023. Eligible articles involved only randomised controlled trials. Random-effects meta-analysis was conducted to calculate the effect size on weekly alcohol consumption comparing web-PFIs and non-active controls. Meta-regressions were applied to explore effect moderators.

KEY FINDINGS

Thirty-one studies were included in the narrative synthesis, 25 of which were meta-analysed. Results found significant effect size differences on weekly alcohol consumption in favour of the intervention group in the short- (SMD = 0.11, 95% confidence interval [CI] 0.06, 0.15) and long-term period (SMD = 0.09, 95% CI 0.02, 0.15). Subgroup analyses identified that interventions which were gender-specific, multicomponent and had unlimited access had higher and significant effect sizes, although they were very similar with respect to comparative groups. Moderator analyses showed that times feedback was accessed significantly contributed to the effectiveness of the intervention. Effects diminished over time, although they remained significant.

IMPLICATIONS

The meta-analysis evidences the effectiveness of web-PFI for addressing university students' alcohol use, decreasing by 1.65 and 1.54 drinks consumed per week in the short- and long-term, respectively.

CONCLUSIONS

The results offer empirical evidence that supports the significant, although small, effect of web-PFI delivered remotely in universities. Future research should focus on increasing their impact by introducing booster sessions and content components based on students' preferences.

Alerta Cannabis: A Tailored-Computer Web-Based Program for the Prevention of Cannabis Use in Adolescents: A Cluster-Randomized Controlled Trial Protocol

BACKGROUND

The growing use of cannabis in adolescence is a public health problem that must be addressed through prevention. In Spain, the average age of initiation of cannabis use in the adolescent population is 14.8 years. At 14 years, the lifetime prevalence of cannabis use is 11.7%, which increases to 51.,5% at the age of 18; the prevalence of cannabis use in the population aged 14 to 18 years is 28.6%, a figure that must be tried to reduce, that is why this school prevention program is proposed: Alerta Cannabis.

METHODS

The Alerta Cannabis research project consists of design, implementation, and evaluation. In the first phase, a computer-tailored eHealth program (Alerta Cannabis) is developed based on the I-Change Model, an integrated model based on three main behavioral change processes: awareness, motivation, and action. This program consists of four 30-minute sessions that will provide culturally adapted and personalized advice to motivate students not to use cannabis through text feedback, animations, and gamification techniques. This phase will also include usability testing. In the implementation phase, secondary school students from Western Andalusia, Spain (Seville, Cádiz, Huelva, and Córdoba) and Eastern Andalusia (Jaén, Málaga, and Granada) will be randomized to an experimental condition (EC) or a control condition (CC) for a cluster randomized clinical trial (CRCT). Each condition will have 35 classes within 8 schools. GI will receive the online intervention Alerta Cannabis. EC and CC will have to fill out a questionnaire at baseline, six months, and twelve months of follow-up. In the last phase, the effect of Alerta Cannabis is evaluated. The primary outcomes are the lifetime prevalence of cannabis use and its use in the last 30 days and at 6 months. At 12 months of follow-up, the prevalence in the last 12 months will also be assessed. The secondary outcome is the intention to use cannabis.

DISCUSSION

The study tests the effect of the innovative program specifically aimed to reduce the use of cannabis in the adolescent population through eHealth in Spain. The findings aim to develop and implement evidence-based cannabis prevention interventions, which could support school prevention, for instance, the assistance of school nurses. If the program proves to be effective, it could be useful to prevent cannabis use on a national and international scale.

TRIAL REGISTRATION

NCT05849636. Date of registration: March 16, 2023.