Developing integrated mental health services focused on the needs of children and young people is a key policy goal in England. The THRIVE Framework and its implementation programme, i-THRIVE, are widely used in England. This study examines experiences of staff using i-THRIVE, estimates its effectiveness, and assesses how local system working relationships influence programme success.

This evaluation uses a quasi-experimental design (10 implementation and 10 comparison sites.) Measurements included staff surveys and assessment of ‘THRIVE-like’ features of each site. Additional site-level characteristics were collected from health system reports. The effect of i-THRIVE was evaluated using a four-group propensity-score-weighted difference-in-differences model; the moderating effect of system working relationships was evaluated with a difference-in-difference-in-differences model.

Implementation site staff were more likely to report using THRIVE and more knowledgeable of THRIVE principles than comparison site staff. The mean improvement of fidelity scores among i-THRIVE sites was 16.7, and 8.8 among comparison sites; the weighted model did not find a statistically significant difference. However, results show that strong working relationships in the local system significantly enhance the effectiveness of i-THRIVE. Sites with highly effective working relationships showed a notable improvement in ‘THRIVE-like’ features, with an average increase of 16.41 points (95% confidence interval: 1.69–31.13, P-value: 0.031) over comparison sites. Sites with ineffective working relationships did not benefit from i-THRIVE (−2.76, 95% confidence interval: − 18.25–12.73, P-value: 0.708).

The findings underscore the importance of working relationship effectiveness in the successful adoption and implementation of multi-agency health policies like i-THRIVE.

Digital addiction among adolescents is an escalating concern with profound psychological implications, yet validated tools to measure it and studies exploring its relationship remain limited.

To validate the Bangla Digital Addiction Scale for Teenagers (Bangla DAST) and identify factors of digital addiction among Bangladeshi adolescents.

Using a two-stage stratified cluster sampling method, data from 1496 adolescents in Bangladesh were collected and analysed using non-parametric tests, Spearman correlations and multiple regression models.

The two-factor structure, encompassing attachment to digital devices (Factor 1) and compulsive use in different places (Factor 2) was supported by confirmatory factor analysis (comparative fit index 0.97, Tucker–Lewis index 0.95, root mean square error of approximation 0.06 [90% CI: 0.056–0.07] and standardised root mean square residual 0.048). McDonald’s omega was 0.81 for the total scale, 0.77 for Factor 1 and 0.63 for Factor 2. Convergent validity was supported by significant associations between digital addiction and psychological symptoms. Factors of digital addiction included age (b = 0.517, P = 0.020), academic grade (b = 0.737, P = 0.021), depression (b = 0.334, P < 0.001), anxiety (b = 0.400, P < 0.001) and insomnia (b = 0.504, P < 0.001). In contrast, female gender (b = −1.250, P = 0.001), not sleeping alone (b = −0.846, P = 0.029) and reduced smartphone usage (b = −1.895, P < 0.001) were associated with lower digital addiction scores. The model accounted for 23.1% of the variance in digital addiction.

The Bangla DAST appears to be a psychometrically valid and reliable tool and can be used for further studies assessing digital addiction among Bangladeshi adolescents. The study highlights the need for targeted preventive measures, particularly focusing on at-risk groups.

Suicidal ideation and behaviours are common among adolescents, posing significant challenges. Parents have a protective role in mitigating this risk, yet they often feel ill-equipped to support their adolescents, and their specific support needs are not well understood.

To explore the lived experiences of parents with suicidal adolescents and identify their support needs in the context of a therapist-assisted online parenting programme.

Semi-structured interviews were conducted with three stakeholder groups based in Australia: nine parents with lived experience caring for a suicidal adolescent, five young people who experienced suicidality during adolescence and five clinical/research experts in youth mental health/suicide prevention. Inductive thematic analysis was used to analyse and interpret findings.

Three key themes highlight the experience of parenting a suicidal adolescent: the traumatising emotional experience, uncertainty and parent empowerment. Six themes described parents’ support needs: validation and support, practical and tailored strategies, rebuilding the parent–adolescent relationship, parental self-care, flexible and accessible modes of delivery, and understanding non-suicidal self-injury.

Findings highlight key themes of parenting a suicidal adolescent and parental support needs. An online parenting programme could offer parents flexible access to evidence-based parenting strategies. Yet, a purely digital approach may not address the complexities of the parent-adolescent dynamic and provide adequate tailoring. As such, a hybrid approach incorporating therapist support can provide parents with both the compassionate support and practical guidance they seek.

The high level of psychological distress in young people is a growing concern. However, there are few national surveys that describe the trajectories of mental health and wellbeing through adolescence into early adulthood. Further, existing research has largely focused exclusively on mental ill-health, with little focus on positive mental health. This study provides the first national profile of the mental health and wellbeing of Australians aged 12–25 years.

Participants completed the National Youth Mental Health survey in 2018 (n1 = 3832), 2020 (n2 = 974) or 2022 (n3 = 961). We applied Keyes’ Complete Mental Health (CMH) framework to derive categories of mental health and wellbeing, and examine rates of CMH over time, by age and gender.

While approximately half of those surveyed reported flourishing (high wellbeing without mental illness), rates of flourishing declined between 2018 and 2022. Rates of flourishing generally decreased with age, and flourishing was more prevalent amongst males than females.

The findings provide a unique contrast of youth mental health pre-, during and post- the COVID-19 pandemic. While rates of psychological distress are consistently high, the proportion of youth reporting flourishing highlights the need to consider all aspects of psychological functioning to accurately understand and respond to the mental health needs of young people.

Smartphone apps combined with psychological interventions may be beneficial for increasing adherence to treatment tasks and augmenting outcomes. Yet, there is limited research on the acceptability and feasibility of adjunctive smartphone apps with psychological therapies for adolescents engaging in self-harm and suicidal behaviours. This study aimed to evaluate the acceptability and feasibility of integrating the Dialectical Behaviour Therapy (DBT) Coach app as an adjunct to a comprehensive DBT programme. The study also aimed to explore statistical trends of the potential relationship between the DBT Coach app and symptom reduction, including self-harm, borderline personality disorder symptoms, emotion dysregulation, and DBT skill use, to inform future study design. A mixed-method design was used to evaluate the acceptability and feasibility of the app and clinician’s portal from the perspective of adolescent and clinician participants. Thematic analysis was used to analyse qualitative data. Results indicated varied experiences of acceptability and feasibility of the DBT Coach app and portal as an adjunct to DBT. Thematic analysis generated four over-arching themes and ten subthemes. The regression analysis provided statistical trends regarding potential relationships between app use and clinical outcomes, which would be helpful to explore in future research. Findings suggest that the app and portal were acceptable and feasible for the most part, with some barriers and challenges identified. Implications of this study are discussed.

1. (1) To learn about the acceptability and feasibility of using a smartphone application as an adjunct to a DBT skills group within a comprehensive DBT programme for adolescents.

2. (2) To explore whether there is a relationship between app use and clinical outcome at the end of the group intervention.

3. (3) To learn about the experiences of adolescents and clinicians using the smartphone app as an adjunct to the DBT skills group.

While the cross-sectional relationship between internet gaming disorder (IGD) and depression is well-established, whether IGD predicts future depression remains debated, and the underlying mechanisms are not fully understood. This large-scale, three-wave longitudinal study aimed to clarify the predictive role of IGD in depression and explore the mediating effects of resilience and sleep distress.

A cohort of 41,215 middle school students from Zigong City was assessed at three time points: November 2021 (T1), November 2022 (T2) and November 2023 (T3). IGD, depression, sleep distress and resilience were measured using standardized questionnaires. Multiple logistic regression was used to examine the associations between baseline IGD and both concurrent and subsequent depression. Mediation analyses were conducted with T1 IGD as the predictor, T2 sleep distress and resilience as serial mediators and T3 depression as the outcome. To test the robustness of the findings, a series of sensitivity analyses were performed. Additionally, sex differences in the mediation pathways were explored.

(1) IGD was independently associated with depression at baseline (T1: adjusted odds ratio [AOR] = 4.76, 95% confidence interval [CI]: 3.79–5.98, p < 0.001), 1 year later (T2: AOR = 1.42, 95% CI: 1.16–1.74, p < 0.001) and 2 years later (T3: AOR = 1.24, 95% CI: 1.01–1.53, p = 0.042); (2) A serial multiple mediation effect of sleep distress and resilience was identified in the relationship between IGD and depression. The mediation ratio was 60.7% in the unadjusted model and 33.3% in the fully adjusted model, accounting for baseline depression, sleep distress, resilience and other covariates. The robustness of our findings was supported by various sensitivity analyses; and (3) Sex differences were observed in the mediating roles of sleep distress and resilience, with the mediation ratio being higher in boys compared to girls.

IGD is a significant predictor of depression in adolescents, with resilience and sleep distress serving as key mediators. Early identification and targeted interventions for IGD may help prevent depression. Intervention strategies should prioritize enhancing resilience and improving sleep quality, particularly among boys at risk.

Estimating the risk of developing bipolar disorder (BD) in children and adolescents (C&A) with depressive disorders is important to optimize prevention and early intervention efforts. We aimed to quantitatively examine the risk of developing BD from depressive disorders and identify factors which moderate this development.

In this systematic review and meta-analysis (PROSPERO:CRD42023431301), PubMed and Web-of-Science databases were searched for longitudinal studies reporting the percentage of C&A with ICD/DSM-defined depressive disorders who developed BD during follow-up. Data extraction, random-effects meta-analysis, between-study heterogeneity analysis, quality assessment, sub-group analyses, and meta-regressions were conducted.

Thirty-nine studies were included, including 72,371 individuals (mean age=13.9 years, 57.1% females); 14.7% of C&A with a depressive disorder developed BD after 20.4–288 months: 9.5% developed BD-I (95% CI=4.7 to 18.1); 7.7% developed BD-II (95% CI=3.2% to 17.3%); 19.8% (95% CI=9.9% to 35.6%) of C&A admitted into the hospital with a depressive disorder developed BD. Studies using the DSM (21.6%, 95% CI=20.2% to 23.1%) and studies evaluating C&A with a major depressive disorder only (19.8%, 95% CI=16.8% to 23.1%) found higher rates of development of BD. Younger age at baseline, a history of hospitalization and recruitment from specialized clinics were associated with an increased risk of developing BD at follow-up. Quality of included studies was good in 76.9% of studies.

There is a substantial risk of developing BD in C&A with depressive disorders. This is particularly the case for C&A with MDD, DSM-diagnosed depressive disorders, and C&A admitted into the hospital. Research exploring additional predictors and preventive interventions is crucial.

Family-based treatment (FBT) has proven efficacy among adolescents with eating disorders (ED). However, it is not effective or suitable for all young people and their families, which makes alternative treatments important. This is the first pilot study to compare the relative effectiveness of manualised enhanced cognitive behaviour therapy (CBT-E) among a transdiagnostic eating disorder sample of adolescents for whom CBT-E was their first ED treatment (n=42), and a group who had previously started FBT which had been discontinued without full recovery (n=27). Participants (n=69) aged 13–17 with an eating disorder completed manualised CBT-E. Outcome measures included body mass index (BMI) centile, ED psychopathology and clinical impairment. Across the cohort, results showed improvements across ED psychopathology, clinical impairment and BMI centile. The effect of the intervention on ED psychopathology and clinical impairment did not vary between groups, nor did attrition rates. There was a difference between the groups on BMI centile, with those who had previously been treated with FBT showing no change in BMI centile, whereas those with no previous FBT increased BMI at post-treatment. Implications from this research suggest that CBT-E is a viable promising alternative and could be offered among those for whom FBT has not achieved full recovery.

1. (1) Delivering CBT-E to adolescents with eating disorders who have previously engaged in FBT but have not achieved full recovery is a promising subsequent treatment option.

2. (2) CBT-E was similarly completed and displayed similar overall group reductions in eating disorder symptoms in those who had discontinued FBT without full recovery compared with those who had not previously engaged with FBT.

3. (3) Results suggest that CBT-E could be offered when FBT has not achieved full recovery, although more research is required to understand optimal timings of treatment transition in such instances.