Background: Adolescence is a period of increased risk for the development of depression. Epidemiological and clinical studies suggest that the phenomenology of depression may differ during childhood and adolescence. However, participants in these studies may not reflect depressed young people referred to routine clinical services. The aim of this paper was to describe referrals for depression to a UK routine public healthcare service for children and adolescents with mental health difficulties. Method: This paper describes a consecutive series of adolescents (N = 100, aged 12-17 years), referred for depression to a routine public healthcare child and adolescent mental health service, in the south of England. Young people and their caregivers completed a structured diagnostic interview and self-report measures of anxiety and depression. Results: Fewer than half of young people referred for depression met diagnostic criteria for a depressive disorder. The key symptoms reported by those with depression were low mood or irritability, cognitive disturbances, sleep disturbances and negative self-perceptions. Suicidal ideation was common and was considerably higher than reported in other studies. Caregiver and young person's accounts of adolescent symptoms of depression and anxiety were uncorrelated. Caregivers also reported fewer symptoms of depression in their child than adolescents themselves. Conclusions: These data have direct relevance to the design and delivery of public mental health services for children and adolescents. However, we do not know how representative this sample is of other clinical populations in the UK or in other countries. There is a need to collect routine data from other services to assess the needs of this group of high-risk adolescents. Key Practitioner Message• Existing data suggest that the characteristics and symptoms of depression in children and adolescents may differ from those reported by depressed adults.• These data may not generalize to adolescents who are referred to and assessed by the UK National Health Service for the treatment of depression.• Of 100 adolescents referred for depression to a routine public child and adolescent mental healthcare service in the United Kingdom, fewer than half met diagnostic criteria for a depressive disorder.• The most common symptoms of the depressed group were low mood or irritability, suicidal ideation, cognitive disturbances, sleep disturbances and negative self-perceptions.• Suicidal ideation was much higher in all groups than reported in clinical trials. • There are currently no guidelines in place regarding (a) how to treat adolescents who do not meet diagnostic criteria for any disorder, but are experiencing distress, impairment and often risk, and (b) how to support and manage clinical staff who are dealing with such high levels of risk.

Anxious mothers' parenting, particularly transfer of threat information, has been considered important in their children's risk for social anxiety disorder (SAnxD), and maternal narratives concerning potential social threat could elucidate this contribution. Maternal narratives to their preschool 4- to 5-year-old children, via a picture book about starting school, were assessed in socially anxious (N = 73), and nonanxious (N = 63) mothers. Child representations of school were assessed via doll play (DP). After one school term, mothers (Child Behavior Checklist [CBCL]) and teachers (Teacher Report Form) reported on child internalizing problems, and child SAnxD was assessed via maternal interview. Relations between these variables, infant behavioral inhibition, and attachment, were examined. Socially anxious mothers showed more negative (higher threat attribution) and less supportive (lower encouragement) narratives than controls, and their children's DP representations SAnxD and CBCL scores were more adverse. High narrative threat predicted child SAnxD; lower encouragement predicted negative child CBCL scores and, particularly for behaviorally inhibited children, Teacher Report Form scores and DP representations. In securely attached children, CBCL scores and risk for SAnxD were affected by maternal anxiety and threat attributions, respectively. Low encouragement mediated the effects of maternal anxiety on child DP representations and CBCL scores. Maternal narratives are affected by social anxiety and contribute to adverse child outcome.

Background: Interest in delivering psychological interventions within schools to facilitate early intervention is increasing. However, most reviews have focused on universal or preventative programmes rather than interventions designed to decrease existing symptoms of depression or anxiety. This paper aims to provide a meta-analytic review of randomised controlled trials of indicated psychological interventions for young people aged 10-19 with elevated symptoms of depression and/or anxiety.Methods: Eight electronic databases were systematically searched from inception to April 2019 for eligible trials. Study quality was assessed using two scales designed to evaluate psychotherapy intervention trials. Random effects meta-analyses were conducted separately for trials that recruited participants based on symptoms of depression and based on symptoms of anxiety. Results: Data from 45 trials were analysed. Most interventions studied used cognitive and behavioural strategies. Few studies met methodological quality criteria, but effect size was not associated with study quality. Indicated school-based interventions had a small effect on reducing depression symptoms (SMD = 0.34, 95% CI -0.48, -0.21) and a medium effect on reducing anxiety symptoms (SMD=-0.49, 95% CI -0.79, -0.19) immediately post-intervention. Subgroup analyses indicated that interventions delivered by internal school staff did not have significant effects on symptoms. Reductions in depression were maintained at short-term (≤6 months) but not medium (>6 months ≤12) or long-term (>12 month) follow up. Reductions in anxiety symptoms were not maintained at any follow up. Conclusions: Indicated school-based interventions are effective at reducing symptoms of depression and anxiety in adolescents immediately post-intervention but there is little evidence that these reductions are maintained. Interventions delivered by school staff are not supported by the current evidence-base. Further high quality randomised controlled trials incorporating assessment of longer-RUNNING HEAD: SCHOOL-BASED INTERVENTIONS FOR ADOLESCENT DEPRESSION AND ANXIETY 3 term outcomes are needed to justify increased investment in school-based interventions for adolescent depression and anxiety.

Brief BA is a promising innovation in the treatment of adolescent depression. This approach requires further evaluation to establish effectiveness and cost effectiveness compared with existing evidence-based treatments for adolescent depression. Other questions concern the effectiveness of delivery in other settings and when delivered by a range of professionals.