Youth participation in substance use prevention: A national profile, 2011-2019.

PURPOSE: Prevention efforts are critical to avoid the negative consequences of substance use in adolescents. This study aimed to examine national trends and sociodemographic differences in adolescents' participation in school-based substance use prevention (SUP) education, community-based SUP programs, as well as family conversations about substance use. METHODS: Publicly available data for adolescents aged 12-17 from the annual cross-sectional surveys of the National Survey on Drug Use and Health 2011-2019 were analyzed. RESULTS: Across the survey years, up to 74.9%, 12.2%, and 58.1% of adolescents reported having participated in school-based SUP education, community-based SUP programs, and family conversations about the danger of substance use in the past-year, respectively. From 2011 to 2019, statistically significant decreases were observed in adolescents' participation in school-based SUP education (OR = 0.97, 95% CI: 0.96, 0.98, p < 0.001) and community-based SUP programs (OR = 0.98, 95% CI: 0.97, 0.99, p < 0.001). Meanwhile, no significant changes were observed in adolescents' participation in family conversations about the dangers of substance use. Overall, lower levels of participation in school-based and community-based SUP programs were found in adolescents aged 16-17. Adolescents living in rural areas showed lower levels of participation in school-based SUP programs and family conversations about SUP. Racial/ethnic minority adolescents overall were less likely to participate in conversations with parents about SUP than Whites. CONCLUSIONS: Further development and implementation of developmentally appropriate, gender-specific, culturally sensitive, and contextually informed SUP programs at school, community, and family levels are needed.

Mediators and moderators of the effects of a school-based intervention on adolescents' fruit and vegetable consumption: the HEIA study.

OBJECTIVE: To examine whether targeted determinants mediated the effects of the HEalth In Adolescents (HEIA) intervention on fruit and vegetable (FV) consumption and explore if these mediating effects were moderated by sex, parental education or weight status. DESIGN: Cluster-randomised controlled trial. SETTING: The HEIA study (2007-2009) was a Norwegian 20-month multi-component school-based intervention to promote healthy weight development. FV consumption and targeted determinants were self-reported at baseline, mid-way (8 months) and post-intervention (20 months). PARTICIPANTS: Adolescents (11-13-year-old) in twenty-five control schools (n 746) and twelve intervention schools (n 375). RESULTS: At post-intervention, more adolescents in the intervention group compared with the control group had knowledge of the FV recommendations (OR: 1·4, 95 % CI 1·1, 1·9) and reported a decreased availability of vegetables at home (ß: -0·1, 95 % CI -0·2, 0·0). Availability/accessibility of FV at home, availability of vegetables at dinner, taste preferences for different types of FV and knowledge of the FV recommendations were positively associated with the consumption of FV. However, none of the post-intervention determinants significantly mediated the intervention effects on FV consumption. Although no moderating influences by sex, parental education or weights status were observed on the mediating effects, exploratory analyses revealed significant moderations in the b-paths. CONCLUSIONS: Since none of the targeted determinants could explain the increase in FV consumption, it remains unclear why the intervention was effective. Reporting on a wide range of mediators and moderators in school-based interventions is needed to reveal the pathways through which intervention effects are achieved.

Process evaluation of the Yéego! Program to increase healthy eating and gardening among American Indian elementary school children.

BACKGROUND: American Indian children are at increased risk for obesity and diabetes. School-based health promotion interventions are one approach to promoting healthy behaviors to reduce this risk, yet few studies have described their implementation and fidelity. We conducted a qualitative process evaluation of the Yéego! Healthy Eating and Gardening Program, a school-based intervention to promote healthy eating among Navajo elementary school children. The intervention included a yearlong integrated curriculum, as well as the construction and maintenance of a school-based garden. METHODS: Our process evaluation included fidelity checklists completed by program staff and qualitative interviews with program staff and classroom teachers after the intervention was implemented. We used content analysis to identify themes. RESULTS: We identified several themes related to evidence of delivery adherence, program satisfaction, and lessons learned about delivery. Intervention staff followed similar procedures to prepare for and deliver lessons, but timing, teaching styles, and school-level factors also impacted overall implementation fidelity. Teachers and students had positive perceptions of the program, especially lessons that were highly visual, experiential, and connected to Navajo culture and the surrounding community. Teachers and program staff identified ways to enhance the usability of the curriculum by narrowing the scope, relating content to student experiences, and aligning content with school curriculum standards. CONCLUSIONS: The program was implemented with moderately high fidelity across contexts. We identified areas where modifications could improve engagement, acceptability, efficacy, and sustainability of the program. Our results have implications for the evaluation and dissemination of school-based health interventions to promote healthy eating among children, especially in American Indian communities.

Improving adolescents' dietary behavior through teacher-delivered cancer prevention education: a school-based cluster randomized intervention trial in urban Rajasthan.

BACKGROUND: Dietary practices are one of the most common modifiable risk factors for cancers. Foods rich in dietary fibers are considered protective, meanwhile fast & junk foods are risk for common cancers. Adolescence period is marked by habit formation and is thus suited for delivering behavioral intervention. Schools offer an optimal setting for planning and executing these interventions to a large number of adolescents. OBJECTIVE: To assess the effectiveness of a teacher-delivered cancer-prevention education in changing dietary behaviors of school going adolescents. METHODS: A cluster randomized trial was conducted in government secondary and senior secondary schools with schools as clusters. A minimum required sample of 1032 students was estimated from 16 schools with 1:1 allocation in intervention and non-intervention groups. Dietary behaviors were recorded as dichotomous variable. The determinants were recorded as per theory of planned behavior framework using Likert-scale. Two teachers from each intervention school were trained to deliver cancer prevention education with focus on role of dietary behavior. Pre-post training assessment of teachers' knowledge towards common cancers was done using a self-administered questionnaire. Gender adjusted difference-in-difference analysis was done to assess intervention effect on both healthy and unhealthy behaviors. RESULTS: In selected schools all students from classes 8 to 10 were approached and a total of 1224 students were enrolled, of whom 1096 completed the study. The study recorded significant improvement in scores of students from intervention group compared to non-intervention group for their attitude, subjective norms, perceived behavioral control and intention towards consuming healthy and avoiding unhealthy foods. The intervention was effective in significantly improving the proportion of students limiting fried/fast/packed food & sugar sweetened beverages (OR:1.51, 95%CI:1.08,2.12,p:0.017), and consuming fruits & vegetables daily (OR:1.55, 95%CI:1.08,2.22, p:0.017) while adjusting effect of gender. CONCLUSION: Classroom-based cancer prevention education delivered through teachers during regular working hours is effective in improving dietary behaviors and its determinants among adolescent students. Thus, we recommend integrating a section focusing on the role of diet in cancer prevention and other lifestyle diseases in the existing school curriculum. TRIAL REGISTRATION: The trial was registered under Clinical Trial Registry-India with registration number CTRI/2018/12/016586, dated-10/12/2018.

The effects of nutrition education on nutritional knowledge and dietary behaviours in primary school students in Zhongshan city.

BACKGROUND: Adequate nutritional knowledge and healthy dietary behaviours are essential for promoting rational nutrition for children. However, lack of nutritional knowledge and unhealthy dietary behaviours are common among Chinese children. Therefore, we developed a school-based nutrition education (NE) program to assess its impacts on nutritional knowledge and dietary behaviours in pupils. METHODS: In this trial, one school was assigned as an intervention group (n = 199) and the other two schools were designated as a control group (n = 140). Children in the intervention group received the NE program in addition to their regular health curriculum, whereas the control group continued with their usual health curriculum without any NE program materials. RESULTS: Concerning nutritional knowledge, the mean difference (follow-up minus baseline) of average knowledge scores in the intervention group was significantly higher than that in the control group (1.99 ± 3.22 vs. 0.66 ± 3.60, p = 0.001). However, subgroup analysis revealed that this difference disappeared among boys and students with malnutrition status. Regarding dietary behaviours, the NE program significantly increased the proportion of children exhibiting high frequencies of meat and nuts consumption in the intervention group, along with diverse food choice at breakfast. Additionally, it markedly reduced the proportion of children exhibiting high frequencies of sugar-sweetened beverages and fast food consumption. Structural equation modelling analyses indicated a significant direct effect of NE intervention on nutritional knowledge and an indirect effect on dietary behaviours. CONCLUSIONS: The NE program effectively enhanced nutritional knowledge scores and further improved dietary behaviours among Chinese primary school students. Future NE programs should pay more attention to boys and children with malnutrition.

Mentalization-based interventions in schools for enhancing socio-emotional competencies and positive behaviour: a systematic review.

Mentalization-based interventions (MBIs) have been increasingly applied in school settings to support the social-emotional development and mental health of children and adolescents. This systematic review aimed to synthesize the evidence on the effectiveness of MBIs implemented in educational contexts for students aged 6-18 years. A comprehensive search was conducted in PsychInfo, MEDLINE, EMBASE, Web of Science, and ERIC databases from inception to October 2023. The search strategy combined terms related to mentalization, school-based interventions, and the target age group. The review protocol was registered with PROSPERO (CRD42022302757). Inclusion criteria included peer-reviewed publications in English, studies published between 1980 and 2023, interventions based on mentalization principles, and a primary focus on children aged 6 to 18 years. Exclusion criteria involved non-mentalization based interventions and research outside the 6-18 age range. The risk of bias was assessed using the Quality Assessment Tools from the National Institutes of Health (NIH). Data were synthesized narratively due to the heterogeneity of study designs and outcomes. Of the 5,250 articles screened, 21 studies met the inclusion criteria, comprising over 7,500 participants. The reviewed interventions targeted various aspects of mentalizing, such as emotion-understanding, empathy, perspective-taking, and Theory of Mind. Significant improvements were found in social-cognitive abilities, emotion regulation, and mental health outcomes, including reductions in disruptive behaviours. Interventions that combined mentalizing training for both students and teachers showed promising results. However, the long-term sustainability of these benefits remains unclear. Limitations of the reviewed studies include the lack of control groups, small sample sizes, and variations in outcome measures. The findings highlight the potential of MBIs as a promising approach to fostering socio-emotional competence, positive behaviour, and well-being in school-aged children. Future research should aim to establish the active components and optimal delivery of these interventions through well-designed randomized controlled trials with larger, more diverse samples and extended follow-up periods. The integration of MBIs within educational systems holds promise for promoting resilience and positive mental health outcomes in young people. Embedding MBIs within school curriculums and evaluating cost-effectiveness are important next steps to guide widespread implementation.

Promoting well-being in early adolescents through mindfulness: A cluster randomized controlled trial.

OBJECTIVES: The Gaia program is a 12-week mindfulness intervention based on cultivating body, emotional, and ecological self-awareness, which has been shown to be effective in reducing children's and adolescents' internalizing problems at school. This paper presents the results of a cluster randomized controlled trial aimed at assessing the effectiveness of this program on improving psychological well-being, subjective well-being, and psychological distress in early adolescents. METHODS: A sample of 195 early adolescent students (boys, n = 99; girls, n = 96) with a mean age of 11.49 years (standard deviation = 0.80) attending 12 middle school classes participated in the study. Seven Gaia instructors belonging to six schools led the program. Measures were administered at three time points, approximately every 3 months: 1 week before treatment, 1 week after treatment, and 3 months after treatment. We used a multilevel regression model to test whether treatment was effective in increasing psychological well-being and subjective well-being, and reducing psychological distress, as compared to a waiting-list control group. RESULTS: The results showed that the Gaia program improved psychological well-being but not subjective well-being and psychological distress. Specifically, the Gaia program was effective in increasing personal growth and purpose in life, the key eudaimonic components of psychological well-being, in the experimental group whereas they decreased in the control group. CONCLUSIONS: Findings from this study provide preliminary evidence that the Gaia program for early adolescents may improve the core eudaimonic components of psychological well-being from pretest to follow-up that, conversely, decrease in the control group.

Smartphone and social network addiction in early adolescents: The role of self-regulatory self-efficacy in a pilot school-based intervention.

BACKGROUND: Youths' online problematic behaviors, such as smartphone or social network sites (SNS) addiction, gained increasing attention nowadays, due to their impact on concurrent and later adjustment, such as emotional and/or behavioral problems, academic impairments, or relational issues. AIMS: This study aims to evaluate the effectiveness of a pilot school-based intervention to contrast online addictive behaviors while fostering adolescents' self-regulative abilities. MATERIALS & METHODS: The intervention started in January 2022 in an Italian junior high school located in Rome, and consisted of four meetings with students. A total sample of 462 15-year-old adolescents (Mage = 15.2; SD = 0.50; 41% females; Ncontrol = 214; Nintervention = 248) was considered. Within the latent difference score framework, we examined short-term changes from the pre-to-the-postintervention levels of SNS and smartphone addiction, and self-regulatory self-efficacy (SRSE) beliefs as a possible booster of the intervention's effectiveness. RESULTS: Results showed a significant decrease in both online addictions (SNS and smartphone addiction), controlling for age, gender, sexual orientation, and socioeconomic status, because of the short-term efficacy of the project. The buffering effect of SRSE beliefs was further supported. CONCLUSION: These findings emphasized the usefulness of promoting youths' self-regulative beliefs to contrast problematic tendencies, according to a Positive Youth Development perspective which focused on resources rather than only on the prevention of negative outcomes for youths' adjustment.

The formative evaluation and pre-testing of a SunSmart policy implementation support toolkit targeting sun safe hat-wearing in NSW primary schools.

ISSUE ADDRESSED: Strategies that support the implementation of the SunSmart program in primary schools are essential to optimising policy uptake. Evidence outlining the type of support required, however, is lacking. This project explored the usefulness of an implementation support approach to sun safe hat-wearing in schools. METHODS: Formative research was undertaken with 16 primary schools in Greater Western Sydney to explore current sun protection behaviours and practices, perceived barriers and motivators of sun safe hat-wearing, and resource needs. Based on these insights, a resource toolkit was developed and tested in 14 demonstration sites. Follow-up interviews evaluated the usefulness of the toolkit and implementation support approach. RESULTS: Sun safe hat-wearing practices varied among schools. Commonly reported motivators included school policies, role modelling, incentives and knowledge. Commonly reported barriers included negative social norms, forgetfulness, cost and lack of understanding. Formative insights informed the development of the 'Motivation, Access, Triggers' Model and a 23-resource toolkit. Following toolkit rollout, champions reported that the ability to select resources according to local needs was useful, and most found that the toolkit supported their school with sun safe hat-wearing. CONCLUSIONS: A toolkit with local champions and leadership buy-in has the potential to improve policy implementation. The opportunity to prioritise resource selection enables schools to address their specific needs in line with their sun protection policy. SO WHAT?: The provision of policy implementation support can help schools overcome the challenges of transforming a written SunSmart policy into practice.

The Dynamic Adaptation of the Journey of Hope: A School-Based Intervention to Support Pandemic and Disaster-Affected Children and Youth.

The Journey of Hope (JoH) is an evidence-based behavioral health prevention intervention model designed for disaster-affected children and youth. While the in-person JoH model has been extensively delivered and studied, the virtual implementation of this intervention, specifically tailored for the unique needs of children and youth during the COVID-19 pandemic, has not been previously explored. In this context, authors of this article adapted the JoH to a virtual delivery model, aiming to provide access to behavioral health preventive services for children and youth during the COVID-19 pandemic when in-person services were not feasible. This adaptation, utilizing the dynamic adaptation process (DAP) and community-based participatory research (CBPR) principles, was carefully designed to meet pandemic-related challenges while maintaining the core components of the original intervention. The primary objectives of this article are twofold: (1) to provide an overview of the theoretical and conceptual underpinnings of the JoH-C19, including the framework that guided the adaptation, and (2) to describe the virtually adapted curriculum and initial pilot of the JoH-C19. This adaptation represents a crucial step in ensuring the accessibility of virtual behavioral health interventions for young populations facing various collective traumas and challenges in a rapidly evolving world.

Effects of a School-Based Gardening, Cooking, and Nutrition Cluster Randomized Controlled Trial on Unprocessed and Ultra-Processed Food Consumption.

BACKGROUND: School-based gardening and nutrition education interventions report improvements in dietary intake, notably through fruit and vegetables. However, gardening, cooking, and nutrition randomized controlled trials are limited in evaluating dietary quality, and none have examined processed food consumption to date. OBJECTIVES: The study examined the effects of Texas Sprouts (TX Sprouts), a gardening, cooking, and nutrition education intervention, compared with control on unprocessed and ultra-processed food (UPF) consumption in predominately low-income Hispanic children. METHODS: TX Sprouts was a school-based cluster randomized controlled trial that consisted of 16 elementary schools randomly assigned to either the TX Sprouts intervention (n = 8 schools) or control (delayed intervention; n = 8 schools) over 3 y (2016-2019). TX Sprouts schools received an outdoor teaching garden and 18 1-h lessons taught by trained educators throughout the school year. Dietary intake data via 2 24-h dietary recalls were collected on a random subsample (n = 468) at baseline and postintervention. All foods and beverages were categorized using the NOVA food classification system (e.g., unprocessed, processed, ultra-processed). Generalized linear mixed effects modeling tested changes in percent calories and grams of NOVA groups between the intervention and control estimates with schools as random clusters. RESULTS: Of the sample, 63% participated in the free and reduced-price lunch program, and 57% were Hispanic, followed by non-Hispanic White (21%) and non-Hispanic Black (12%). The intervention, compared to the control, resulted in an increase in consumption of unprocessed foods (2.3% compared with -1.8% g; P < 0.01) and a decrease in UPF (-2.4% compared with 1.4% g; P = 0.04). In addition, Hispanic children in the intervention group had an increase in unprocessed food consumption and a decrease in UPF consumption compared to non-Hispanic children (-3.4% compared with 1.5% g; P < 0.05). CONCLUSIONS: Study results suggest that school-based gardening, cooking, and nutrition education interventions can improve dietary intake, specifically increasing unprocessed food consumption and decreasing UPF consumption. This trial was registered at clinicaltrials.gov as NCT02668744.

A randomised controlled school-based nutritional intervention in five Middle Eastern countries: Ajyal Salima improved students' dietary and physical activity habits.

OBJECTIVE: The purpose of this study was to measure the impact of the Ajyal Salima school intervention on nutrition and physical activity outcomes in children aged 9­11 years. DESIGN: The study was a 1-year cluster-randomised controlled trial. Ajyal Salima used a multi-component approach including classroom activities, family programme and food service adaptation. Outcomes included daily intake of breakfast, frequency of healthy and unhealthy food consumption, frequency of physical activity, knowledge score and self-efficacy score. Intervention and control groups were compared for all main outcomes and a post-intervention qualitative evaluation assessed strengths and limitations of the intervention components. SETTING: Schools in five countries ­ Lebanon, Jordan, Palestine, Saudi Arabia and Bahrain. PARTICIPANTS: Schools were selected by Ministries of Health and Education within their jurisdictions. Forty-five intervention schools (6052 students) and forty-six control schools (6200 students) were included in the analysis. RESULTS: The intervention group had a significantly higher odds of consuming breakfast daily (OR 95 % CI = 1·60, 1·35, 1·90), consuming healthy foods (OR 95 % CI = 1·60, 1·39, 1·84) and a decreased odds of consuming unhealthy foods and sweetened beverages (OR, 95 % CI = 0·70, 0·60, 0·81). Additionally, school children in the intervention group, as compared with the control group, were 47 % more likely to exercise outside school hours (OR 95 % CI = 1·47, 1·23, 1·76). Lastly, children in the intervention group had a significantly improved nutritional knowledge score and improved self-efficacy by 1·3 score unit and 1·1 score unit, respectively. CONCLUSIONS: The Ajyal Salima intervention led to significant improvements in dietary and physical activity habits among school children and increased nutritional knowledge scores.

The impact of SNAP-Ed interventions on California students' diet and physical activity during COVID-19.

OBJECTIVE: School-based CalFresh Healthy Living (CFHL) (California's SNAP-Ed) interventions adapted to new learning environments necessitated by COVID-19. We examined the impact of these interventions on student diet and physical activity (PA) outcomes. DESIGN: Quasi-experimental, two-group, pre-post. SETTING: California public schools with ≥50 % of students Free and Reduced Price Meal-eligible (nintervention = 47; ncomparison = 17). PARTICIPANTS: Fourth- and fifth-grade students who completed the online Eating and Activity Tool for Students at pre and post (nintervention = 1087; ncomparison = 846 students). RESULTS: Intervention students reported a significantly greater increase in consumption frequency of total fruit (by 0·16 times/d; P = 0·032), driven primarily by a greater increase in 100 % fruit juice (by 0·11 times/d; P = 0·007). Intervention students reported a significantly greater increase in total vegetable consumption frequency (by 0·45 times/d; P < 0·001) than comparison students. Specifically, intervention students reported increased, whereas comparison students reported decreased, consumption frequencies for starchy vegetables (0·05 v. -0·10 times/d, P < 0·001), salad/green vegetables (0·01 v. -0·11 times/d, P = 0·005) and beans (0·04 v. -0·03 times/d, P = 0·025). Consumption frequency of other vegetables decreased in both groups (-0·01 v. -0·09 times/d) but decreased more among comparison students (P = 0·048). No differences in pre-post change in PA outcomes were detected. CONCLUSIONS: Findings suggest that despite COVID-19-related challenges necessitating programme modifications, CFHL interventions played a role in protecting student consumption of fruit and vegetables during the 2020-2021 school year. Therefore, it appears that school-based CFHL interventions can be a viable means of safeguarding student nutrition at a time when access to nutritious food and PA opportunities are hindered.

Effects of a school-based physical activity intervention on cardiometabolic health 5 years after cessation.

BACKGROUND: While there have been several school-based physical activity (PA) interventions targeting improvement in cardiovascular disease (CVD) risk factors, few have assessed long-term effects. The aim of this paper was therefore to determine intervention effects on CVD risk factors 5 years after cessation. METHODS: Two schools were assigned to intervention (n = 125) or control (n = 134). The intervention school offered 210 min/week more PA than the control school over two consecutive years (fourth and fifth grades). Follow-up assessment was conducted 5-year post-intervention (10th grade) where 180-210 (73%-85%) children provided valid data. Outcomes were CVD risk factors: triglyceride, total-to-high-density-lipoprotein-cholesterol ratio (TC:HDL ratio), insulin resistance, blood pressure (BP), waist circumference, and cardiorespiratory fitness (VO2peak ). Variables were analyzed individually and as a composite score through linear mixed models, including random intercepts for children. RESULTS: Analyses revealed significant sustained 5-year intervention effects for HDL (effect sizes [ES] = 0.22), diastolic BP (ES = 0.48), VO2peak (ES = 0.29), and composite risk score (ES = 0.38). These effects were similar to the immediate results following the intervention. In contrast, while TC:HDL ratio initially decreased post-intervention (ES = 0.27), this decrease was not maintained at 5-year follow-up (ES = 0.09), whereas WC was initially unchanged post-intervention (ES = 0.02), but decreased at 5-year follow-up (ES = 0.44). CONCLUSION: The significant effects of a 2-year school-based PA intervention remained for CVD risk factors 5 years after cessation of the intervention. As cardiometabolic health can be maintained long-term after school-based PA, this paper demonstrates the sustainability and potential of schools in the primary prevention of future CVD risk in children.

A school-based physical activity intervention on psychosocial health outcomes among 11- and 12-year-olds - HOPP-project.

The purpose was to investigate the effect of a school-based physical activity (PA)-intervention among 11- and 12-year-olds (6th- and 7th graders) across 4 years. Seven primary schools in Horten municipality in Norway received 45 min daily extra PA as part of the curriculum. The intervention started in 2015 with follow-up in 2016-2019. The effect was measured after 1-4 years of participation, among the same children (6th to 7th grade) and among new children starting in 6th grade. Two control schools received no additional PA beyond the regular PA at school. The Self-reported Strength and Difficulties Questionnaire (SDQ-S) focusing on internalizing and externalizing difficulties were administrated. A statistical model for repeated measurements was used and adjusted for parents' educational level, sex, age, and waist-to-height ratio (WHtR). The significance level was p ≤ 0.01. In total, 1221 children completed the SDQ-S. SDQ-S scores were stable, and difficulties were relatively low. The control group had significantly lower SDQ-S scores than the intervention group at start, indicating fewer difficulties. The adjusted effect within the intervention schools showed a borderline significant increase in total difficulty scores between 2018 and 2019 (mean difference: 1.02, 95% CI: -1.82, -0.23, p ≤ 0.01). Educational level showed a weak negative correlation with total difficulty score (r = -0.1). No significant change was reported within the control schools. Few psychosocial health problems among 11- and 12-year-olds were detected. The borderline increase in total difficulty score that was seen for the intervention schools, is believed to be of limited clinical relevance.

Effectiveness of MOVI-KIDS programme on health-related quality of life in children: Cluster-randomized controlled trial.

OBJECTIVE: To test the effectiveness of an 8-month school-based multicomponent intervention (MOVI-KIDS) in improving health-related quality of life (HRQoL) in schoolchildren. STUDY DESIGN: A randomized cluster trial was conducted including 1168 children aged 4-6 years who attended 21 schools in two Spanish provinces (Cuenca and Ciudad Real). MOVI-KIDS study is a multicomponent physical activity intervention, which consisted of (i) 3 × 60-min sessions/week, (ii) educational materials for parents and teachers, and (iii) school playground modifications. The parent's proxy report of the KINDL-R Spanish version (6 subdimensions and a total score), and the KINDL-R self-reported by children (total score) was used to measure HRQoL. Mixed linear regression models were conducted to test differences in each HRQoL dimension between intervention and control groups, controlling for baseline values, cardiorespiratory fitness, and socioeconomic status, by gender. RESULTS: The boys in the intervention group presented better scores on total HRQoL than the control group in both the parent (ß = 1.46; 95% CI: 0.23-2.70) and self-reported (ß = 2.13; 95% CI: 0.53-3.74) versions, as well as on the emotional well-being dimension (ß = 2.43; 95% CI: 0.48-4.36). There was no significant effect of the intervention on physical well-being, self-esteem, family, and friends. In girls, no statistically significant differences were found between those who participated in MOVI-KIDS and those who did not. CONCLUSION: Our data support gender differences in the effect of MOVI-KIDS, such that while in boys the intervention was successful in increasing total scores of HRQoL, as well as emotional well-being scores, the intervention was not effective in improving girls' HRQoL.

Effectiveness of an educational intervention to promote psychosocial well-being of school-going adolescents in Sri Lanka.

BACKGROUND: One-fifth of the Sri Lankan population consists of adolescents, with 71% of them schooling. An extreme need exists in the country for the introduction of evidence-based interventions for the psychosocial well-being of adolescents. The present study assessed the effectiveness of an educational intervention to promote the psychosocial well-being of school-going adolescents in grade nine in Western Province, Sri Lanka. MATERIALS AND METHODS: A quasi-experimental study was conducted among grade nine students in Western Province in 2019. Panadura Medical Officer of Health (MOH) area was selected as the interventional area (IA), and Kelaniya MOH area was identified as the control area (CA). Teachers at schools in the IA received training on psychosocial health promotion of adolescents. They delivered the activity-based educational intervention package to the grade nine students as 20-min classroom sessions for three months. Pre- and post-intervention assessments of attitudes and practices related to the psychosocial well-being of adolescents were conducted using an interviewer-administered questionnaire. Categorical data were compared using Chi-Square or Fisher's exact test. Mann-Whitney U test was applied to determine the difference between the medians of the pre-and post-intervention scores on attitude and practices for psychosocial well-being. RESULTS: A total of 1040 grade nine students were enrolled. There was a statistically significant increase in median score on attitudes [81.8 (IQR:75.5-85.5) to 82.3(IQR:78.6-87.2] and practices [81.7(IQR: 76.1-85.7) to 83.1(IQR: 79.1-86.9)] in the IA while there was no significant difference in the CA. The proportion of bullied adolescents in the past 30 days reduced significantly from 14.8% (n = 38) to 7.9% (n = 20) in IA(p = .03), whereas there was a slight reduction from 17.1% (n = 44) to 11.3% (n = 26) in CA (p = .17). CONCLUSIONS: The present psychosocial intervention is effective in improving the psychosocial well-being of school adolescents, though long-term effectiveness was not assessed. It is recommended to utilise study findings in deciding to introduce the present intervention to basic and in-service teacher training packages and school curricula with necessary modifications.

Study protocol of the Our Futures Vaping Trial: a cluster randomised controlled trial of a school-based eHealth intervention to prevent e-cigarette use among adolescents.

BACKGROUND: Effective and scalable prevention approaches are urgently needed to address the rapidly increasing rates of e-cigarette use among adolescents. School-based eHealth interventions can be an efficient, effective, and economical approach, yet there are none targeting e-cigarettes within Australia. This paper describes the protocol of the OurFutures Vaping Trial which aims to evaluate the efficacy and cost-effectiveness of the first school-based eHealth intervention targeting e-cigarettes in Australia. METHODS: A two-arm cluster randomised controlled trial will be conducted among Year 7 and 8 students (aged 12-14 years) in 42 secondary schools across New South Wales, Western Australia and Queensland, Australia. Using stratified block randomisation, schools will be assigned to either the OurFutures Vaping Program intervention group or an active control group (health education as usual). The intervention consists of four web-based cartoon lessons and accompanying activities delivered during health education over a four-week period. Whilst primarily focused on e-cigarette use, the program simultaneously addresses tobacco cigarette use. Students will complete online self-report surveys at baseline, post-intervention, 6-, 12-, 24-, and 36-months after baseline. The primary outcome is the uptake of e-cigarette use at 12-month follow-up. Secondary outcomes include the uptake of tobacco smoking, frequency/quantity of e-cigarettes use and tobacco smoking, intentions to use e-cigarettes/tobacco cigarettes, knowledge about e-cigarettes/tobacco cigarettes, motives and attitudes relating to e-cigarettes, self-efficacy to resist peer pressure and refuse e-cigarettes, mental health, quality of life, and resource utilisation. Generalized mixed effects regression will investigate whether receiving the intervention reduces the likelihood of primary and secondary outcomes. Cost-effectiveness and the effect on primary and secondary outcomes will also be examined over the longer-term. DISCUSSION: If effective, the intervention will be readily accessible to schools via the OurFutures platform and has the potential to make substantial health and economic impact. Without such intervention, young Australians will be the first generation to use nicotine at higher rates than previous generations, thereby undoing decades of effective tobacco control. TRIAL REGISTRATION: The trial has been prospectively registered with the Australian and New Zealand Clinical Trials Registry (ACTRN12623000022662; date registered: 10/01/2023).

Protocol for the Open Sky School: a two-arm clustered randomized controlled trial to test the effectiveness of a nature-based intervention on mental health of elementary school children.

BACKGROUND: This article outlines the protocol for a trial to test the effectiveness of a nature-based intervention called Open Sky School to reduce mental health problems among elementary school children. Experimental studies show that contact with nature (e.g. walks in parks) improve mental health. A growing number of teachers have been applying outdoor education within the regular school curriculum and evidence suggests that such teaching methods could improve students' mental health but a randomized controlled trial has never been conducted. METHODS: A two-arm clustered randomized controlled trial will be conducted in elementary schools across Québec, Canada. Following informed consent by teachers, parents and students, schools will be randomly assigned 1:1 to the intervention or the control group with a total of 2500 5-6th grade students and 100 teachers expected to participate. The intervention will take place outdoors in a green-space (2 h per week for 12 weeks) and include a toolkit of 30 activities to foster well-being (e.g. mindfulness) and academic competencies (e.g. mathematics). Questionnaires will be administered to teachers and students before, immediately after and 3 months after the intervention. The primary outcome will be reductions of mental health problems in children from pre-to-post test (Social Behavior Questionnaire: self and teacher reports). Secondary outcomes include depression, positive and negative affect, nature connectedness, and pro-environmental behaviors among children. We will explore, immediate benefits on teacher's well-being and positive and negative affect and sustained benefits among students at 3 months follow-up. For the primary outcome, we will explore moderators including child's sex, child's disability status, the green-space of neighbourhoods, the school's socio-economic position and teacher's experience. DISCUSSION: In conducting the first randomized controlled trial of the Open Sky School, our results could provide empirical evidence on the effectiveness of nature-based interventions in reducing mental health problems among elementary school children. TRIAL REGISTRATION: This study was registered with clinicaltrials.gov: NCT05662436 on December 22, 2022.

Investigating the effectiveness of three school based interventions for preventing psychotic experiences over a year period - a secondary data analysis study of a randomized control trial.

INTRODUCTION: Psychotic experiences (PEs) are associated with increased risk of later mental disorders and so could be valuable in prevention studies. However, to date few intervention studies have examined PEs. Given this lack of evidence, in the current study a secondary data analysis was conducted on a clustered-randomized control trial (RCT) of 3 school based interventions to reduce suicidal behaviour, to investigate if these may reduce rates of PEs, and prevent PE, at 3-month and 1-year follow-up. METHODS: The Irish site of the Saving and Empowering Young Lives in Europe study, trial registration (DRKS00000214), a cluster-RCT designed to examine the effect of school-based interventions on suicidal thoughts and behaviour. Seventeen schools (n = 1096) were randomly assigned to one of three intervention arms or a control arm. The interventions included a teacher training (gate-keeper) intervention, an interactive educational (universal-education) intervention, and a screening and integrated referral (selective-indicative) intervention. The primary outcome of this secondary data-analysis was reduction in point-prevalence of PEs at 12 months. A second analysis excluding those with PEs at baseline was conducted to examine prevention of PEs. Additional analysis was conducted of change in depression and anxiety scores (comparing those with/without PEs) in each arm of the intervention. Statistical analyses were conducted using mixed-effects modelling. RESULTS: At 12-months, the screening and referral intervention was associated with a significant reduction in PEs (OR:0.12,95%CI[0.02-0.62]) compared to the control arm. The teacher training and education intervention did not show this effect. Prevention was also observed only in the screening and referral arm (OR:0.30,95%CI[0.09-0.97]). Participants with PEs showed higher levels of depression and anxiety symptoms, compared to those without, and different responses to the screening and referral intervention & universal-education intervention. CONCLUSIONS: This study provides the first evidence for a school based intervention that reduce & prevent PEs in adolescence. This intervention is a combination of a school-based screening for psychopathology and subsequent referral intervention significantly reduced PEs in adolescents. Although further research is needed, our findings point to the effectiveness of school-based programmes for prevention of future mental health problems.