Russell M Viner’s research while affiliated with London Research Institute and other places

Background Despite high rates of adolescent mental-health problems, there are few effective whole-school interventions to address this. Whole-school interventions offer a feasible and sustainable means of promoting mental health. We previously evaluated the Learning Together (LT) intervention which was effective in preventing bullying (primary outcome), promoting mental well-being, psychological functioning, and reducing substance use (secondary outcomes). We adapted LT to develop Learning Together for Mental Health (LTMH) with a new menu of evidence-based actions to address mental health and an enhanced SEL curriculum. Methods We undertook a feasibility study of LTMH, a whole-school intervention featuring needs assessment, student and staff participation in decision-making via action groups selecting actions from an evidence-based menu, restorative practice, and a SEL and resilience skills curriculum between 2022 and 2023. This article examines the feasibility, acceptability, and potential mechanisms of LTMH, qualitatively, drawing on interviews and focus groups with 49 students in years 8 and 10, and 20 staff across four state secondary schools in southern England. Results The intervention was feasible and acceptable to implement. In terms of feasibility, the SEL curriculum was the most challenging to implement and was not prioritised by schools that had existing social and emotional learning lessons. Training and external facilitation were well-rated. Some schools struggled with the resourcing and workload implications of implementing actions from the evidence-based menu. Some aspects were not clear. Some staff were not aware that the various components worked together. Needs reports were not easy to understand for all. Students were generally supportive of restorative practice and SEL lessons. Data supported a potential mechanism involving increased school belonging and developing practical knowledge and skills to manage emotions and relationships. The intervention has little potential for harm. Conclusions The intervention is ready for phase III trial with minor adaptations. A phase III trial of effectiveness is justified. Trial registration ISRCTN15301591 https://doi.org/10.1186/ISRCTN15301591

Individuals with excess weight are at a higher risk for various physical and mental health conditions. Interventions targeting weight loss can improve health, with modest weight loss of five to ten percent of body weight often considered clinically meaningful for enhancing health outcomes. However, the benefits of achieving low-level weight loss ( < 5% body weight) are poorly understood. We aimed to systematically review relevant literature and synthesise the evidence that assessed the potential health benefits of losing less than five percent body weight. We searched seven academic databases and included studies in any language, from any country, with no time constraints. We included any intervention studies that assessed the impact of less than five percent weight loss on any measured physical or mental health markers or indices. 70 studies from 68 articles were included, with study participants ranging from 14 to 10,742. In total, 137 health markers were assessed, categorised into metabolic markers ( n = 42), cardiovascular markers ( n = 32), anthropometric measures ( n = 19), quality of life indices ( n = 10), inflammatory biomarkers ( n = 10), renal and hepatic markers ( n = 9), psychosocial and behavioural measures ( n = 8), pulmonary function ( n = 3), total mortality ( n = 2), ovulatory function ( n = 1), and muscle strength ( n = 1). Overall, 60% of studies reported improvements, 37% found no change or mixed results, and 3% observed a worsening of health markers or indices. Based on the available data, 87% of participants ( n = 15,839) in the studies reported improvements in health markers or indices as a result of low-level weight loss. Our findings suggest that low-level weight loss can lead to various health benefits and challenges the conventional threshold for effective weight loss. Preregistration The review protocol was pre-registered with PROSPERO (CRD42023406342)

Purpose “Positive epidemiology” emphasizes strengths and assets that protect the health of populations. Positive mental health refers to a range of social and emotional capabilities that may support adaptation to challenging circumstances. We examine the role of positive mental health in promoting adolescent health during the crisis phase of the COVID-19 pandemic. Methods We used four long-running Australian and UK longitudinal cohorts: Childhood to Adolescence Transition Study (CATS; analyzed N=809; Australia); Longitudinal Study of Australian Children (LSAC) – Baby (analyzed N=1,534) and Kindergarten (analyzed N=1,300) cohorts; Millennium Cohort Study (MCS; analyzed N=2,490; UK). Measures included: (Pre-pandemic exposure): Positive mental health (parent-reported, 13-15 years) including regulating emotions, interacting well with peers, and caring for others; and pandemic outcomes: psychological distress, life satisfaction, and sleep and alcohol use outside of recommendations (16-21 years; 2020). We used two-stage meta-analysis to estimate associations between positive mental health and outcomes across cohorts, accounting for potential confounders. Results Estimates suggest meaningful effects of positive mental health on psychosocial outcomes during the pandemic, including lower risk of psychological distress (Risk Ratio [RR]=0.83 95%CI=0.71, 0.97) and higher life satisfaction (RR=1.1, 95%CI=1.0, 1.2). The estimated effects for health behaviors were smaller in magnitude (sleep: RR=0.95, 95%CI=0.86, 1.1; alcohol use: RR=0.97, 95%CI=0.85, 1.1). Conclusions Our results are consistent with the hypothesis that adolescents’ positive mental health supports better psychosocial outcomes during challenges such as the COVID-19 pandemic, but relevance for health behaviors is less clear. These findings reinforce the value of extending evidence to include positive health states and assets.

Objective To investigate SARS-CoV-2 vaccine uptake and effectiveness in children and young people (CYP) with life-limiting neurodisability. Design We undertook a retrospective cohort study using national hospital data in England from 21 December 2020 to 2 September 2022 to describe SARS-CoV-2 vaccination uptake, and then examined COVID-19 hospitalisation, paediatric intensive care unit (PICU) admission and death following SARS-CoV-2 infection by vaccination status using Cox regression models. Patients CYP aged 5–17 with life-limiting neurodisability. Results We identified 38 067 CYP with life-limiting neurodisability; 13 311 (35.0%) received at least one SARS-CoV-2 vaccine, with uptake higher among older, white CYP, from less deprived neighbourhoods. Of 8134 CYP followed up after a positive SARS-CoV-2 test, 1547 (19%) were vaccinated. Within 28 days of infection, 309 (4.7%) unvaccinated CYP were hospitalised with COVID-19 compared with 75 (4.8%) vaccinated CYP. Of 46 (0.7%) unvaccinated CYP were admitted to PICU compared with 10 (0.6%) vaccinated CYP. Of 20 CYP died within 28 days of SARS-CoV-2 infection, of which 13 were unvaccinated. Overall, adjusted hazard of hospitalisation for COVID-19 or admission to PICU did not vary by vaccination status. When the Alpha-Delta SARS-CoV-2 variants were dominant, hazard of hospitalisation with COVID-19 was significantly lower among vaccinated CYP (HR 0.26 (0.09 to 0.74)), with no difference seen during Omicron (HR 1.16 (0.74 to 1.81)). Conclusions SARS-CoV-2 vaccination was protective of COVID-19 hospitalisation among CYP with life-limiting neurodisability during Alpha-Delta, but not for other SARS-CoV-2 variants. Vaccine uptake was low and varied by ethnicity and deprivation.

Background/Objectives: Low quality diets are a risk factor for non-communicable diseases; therefore, improving diet quality is a public health and policy priority in the UK and elsewhere. Reformulating food/beverage products to make them healthier may be an effective approach. Evidence suggests that fiscal interventions, notably taxes/levies on soft drinks, can lead to reformulation but the evidence for voluntary or mandated non-fiscal interventions is less clear. We aimed to review and synthesise contemporary evidence to determine whether non-fiscal policies/interventions result in the reformulation of food/beverage products Methods: In April 2023, we systematically searched ten international academic and nine grey literature databases. We included real-world study designs, all nutrients, in- and out-of-home sectors, and studies published from 2013, to ensure policy relevancy. We excluded modelling studies. Using the Synthesis Without Meta-Analysis method we conducted vote counting of studies based on the direction of effect and narrative synthesis by intervention type. Risk of bias was assessed using a tool developed by the EPPI-Centre and quality was assessed using GRADE. Results: We included 77 real-world studies from 19 countries, reporting 100 non-fiscal policies/interventions. Most commonly, these were reduction targets (n = 44), front-of-pack labels (n = 23), and advertising standards (n = 9). Most interventions were voluntary (n = 67), compared to mandatory (n = 33), and focused on the in-home sector (n = 63). The vote counting results showed non-fiscal policies/interventions overall led to improvements in reformulation in 60/63 studies with a valid direction of effect (95%, 95% CI 0.869, 0.984, p < 0.001). Mandatory implementations were more successful than voluntary implementations with 15/15 showing an improvement (100%, 95% CI 0.796, 1], p < 0.001), compared 40/43 showing an improvement (93%, 95% CI 0.814, 0.976, p < 0.001). Most of the studies were of low quality, due to the observational nature of the studies. Sodium was the most commonly targeted nutrient (n = 56) and was found to be reformulated in most studies. Causation is difficult to establish from real-world studies, but evidence suggests that regulatory and multi-component strategies may be effective at driving reformulation. Conclusions: Non-fiscal policies/interventions can play an important role in driving reformulation, alongside fiscal measures. This work was funded by the National Institute for Health and Care Research PRP-PRU-02-15-Healthy Weight and registered on Open Science Framework.

Objectives Delays in elective surgery can impact children and young people’s (CYP) social and emotional development,1 2 and prolonged pain from postponed dental treatment can impact CYP’s sleep and school attendance.³ Little is known about how COVID-19 impacted elective admissions for dental tooth extractions for CYP, and how this may differ by age and socioeconomic deprivation. Methods All elective dental tooth extractions by the under-25s were extracted from England’s Hospital Episode Statistics and stratified into age groups (under-11s, 11–16s, and 17- 24s). Extractions in the under-11s were mostly due to tooth decay, while extractions in the 11–16s and 17–24s were likely due to tooth impactions or as part of orthodontic treatment. The study period was February 2020 to March 2021 and the preceding five pre-pandemic years. The month-by-month percentage drop and absolute difference between periods were reported. Pearson’s chi-squared with standardised residuals tested differences between overall periods. Results Figure 1 shows the percentage drop in admissions was steepest in April 2020 for all age groups, with the differences ranging from 94.0% to 97.2% for the under-11s, more than 98% for the 11–16s and 97.9% to over 98.0% for the 17–24s across the socioeconomic deprivation quintiles. Table 1 shows how, in absolute terms, the sum of admission reductions for the pandemic period by deprivation quintile was largest among the most deprived CYP across all age groups, with the under-11s worst affected.When comparing deprivation between periods overall, the admission reductions for the under-11s were statistically significant (p<0.0001). The following standardised residuals showed how this is driven by more than expected admissions by CYP from the least and second least deprived quintiles, and fewer than expected admissions by CYP from the most deprived socioeconomic quintile during the pandemic. • Download figure • Open in new tab • Download powerpoint Abstract 6266 Figure 1 Monthly elective dental admission trends by deprivation quintile and age group during the pandemic and the mean monthly admissions for the previous five years View this table: • View inline • View popup Abstract 6266 Table 1 Sum of the difference in tooth extractions during the pandemic, compared with the pre-pandemic period mean Conclusion Among the under-11s, there were significant changes in admissions by socioeconomic deprivation quintile, driven by more than expected admissions by the two most affluent deprivation quintiles and fewer than expected admissions by the most deprived CYP during the pandemic. Children from the most deprived backgrounds, must not be further disadvantaged by the impacts of tooth pain, and need to be prioritised and planned for when addressing backlogs. References • Forner D, Leslie PK, Aldaihani A, Bezuhly M, Noel CW, Horne D, et al. Psychosocial distress in parents with children awaiting surgery during the COVID-19 pandemic. Children 2022. • Levine RS. Childhood caries and hospital admissions in England: a reflection on preventive strategies. Br Dent J 2021. • Goodwin M, Sanders C, Davies G, Walsh T, Pretty IA. Issues arising following a referral and subsequent wait for extraction under general anaesthetic: impact on children. BMC Oral Health 2015.

This retrospective population-based analysis assessed variations in urgent healthcare use by children and young people (CYP) across UK nations (England, Scotland and Wales) between 2007 and 2017. The study focused on urgent hospital admissions, short stay urgent admissions (SSUA) and Emergency Department (ED) attendances among CYP aged <25 years, stratified by age groups and Index of Multiple Deprivation (IMD) quintile groups. A linear mixed model was used to assess trends in healthcare activity over time and across deprivation quintiles. Urgent admissions, SSUA and ED attendances increased across all deprivation quintiles in all studied nations. Increasing deprivation was consistently associated with higher urgent healthcare utilisation. In England, the rise in urgent admissions and SSUA for CYP was slower for CYP from the quintile of greatest deprivation compared those from the least deprived quintile (respective mean differences 0.69/1000/y [95% CI 0.53, 0.85] and 0.25/1000/y [0.07, 0.42]), leading to a narrowing in health inequality. Conversely, in Scotland, urgent admissions and SSUA increased more rapidly for CYP from all deprivation quintiles, widening health inequality. Understanding the differences we describe here could inform changes to NHS pathways of care across the UK which slow the rise in urgent healthcare use for CYP.

Background: COVID-19 caused widespread disruptions to health services worldwide, including reductions in elective surgery. Tooth extractions are among the most common reasons for elective surgery among children and young people (CYP). It is unclear how COVID-19 affected elective dental surgeries in hospitals over multiple pandemic waves at a national level. Methods: Elective dental tooth extraction admissions were selected using Hospital Episode Statistics. Admission trends for the first 14 pandemic months were compared with the previous five years and results were stratified by age (under-11s, 11–16s, 17–24s). Results: The most socioeconomically deprived CYP comprised the largest proportion of elective dental tooth extraction admissions. In April 2020, admissions dropped by >95%. In absolute terms, the biggest reduction was in April (11–16s: −1339 admissions, 95% CI −1411 to −1267; 17–24s: −1600, −1678 to −1521) and May 2020 (under-11s: −2857, −2962 to −2752). Admissions differed by socioeconomic deprivation for the under-11s (P < 0.0001), driven by fewer admissions than expected by the most deprived and more by the most affluent during the pandemic. Conclusion: Elective tooth extractions dropped most in April 2020, remaining below pre-pandemic levels throughout the study. Despite being the most likely to be admitted, the most deprived under-11s had the largest reductions in admissions relative to other groups.