Examining Children and adolescent mental health trajectories during the COVID-19 pandemic: Findings from a year of the Co-SPACE study.

Background: A major concern throughout the COVID-19 pandemic has been on young people's experiences with mental health. In this study we mapped children and adolescents' mental health trajectories over 13 months of the pandemic and examine whether family, peer, and individual-level factors were associated with trajectory membership. Methods: This study focuses on a sub-sample from the Co-SPACE study of 3322 children and adolescents (aged 4-16 years) for whom parents completed a survey at Time 0 and at least one follow-up survey between March 2020 and May 2021. We used growth mixture models to examine trajectories in emotional, conduct, and hyperactivity/inattention difficulties using the Strengths and Difficulties Questionnaire and multinomial logistic regression models to estimate factors associated with individual trajectory membership. Results: The average trend in young people's mental health appeared to follow changes in national guidelines regarding the pandemic. Distinct trends in GMM models highlighting individual differences showed that a 5-trajectory model best explained the changes in emotional problems whilst 4-trajectory models best explained variation in hyperactivity/inattention and conduct problems. While most young people followed low stable (62%-85%) or moderate stable (28%) symptom trajectories, 14%-31% experienced very high, high stable or increasing mental health difficulties. Young people following high stable trajectories were more likely to have special educational needs and/or neurodevelopmental disorders, parents reporting higher levels of distress and parent-child conflict, and were less likely to have at least one close friend. Conclusions: Most young people adapted well and experienced low stable symptoms, but nearly one third experienced high stable or increasing mental health difficulties. Young people with complex needs and parents with higher psychological distress were particularly vulnerable to high stable problems while those with positive peer relationships were less vulnerable. This study offers insight into potential factors that can be addressed using targeted interventions to improve the wellbeing of parents and young people in the event of future lockdowns and school closures.

Changes in UK parental mental health symptoms over 10 months of the COVID-19 pandemic.

Background: The threats to health, associated restrictions and economic consequences of the COVID-19 pandemic have been linked to increases in mental health difficulties for many. Parents, in particular, have experienced many challenges such as having to combine work with home-schooling their children and other caring responsibilities. Yet, it remains unclear how parental mental health has changed throughout the pandemic or what factors may have mitigated or compounded the impact of the pandemic on parents' mental health. Methods: We examined monthly survey data from two linked UK-based longitudinal studies: COVID-19: Supporting Parents, Adolescents and Children during Epidemics' (Co-SPACE) and COVID-19: Supporting Parents and Young Children during Epidemics' (Co-SPYCE). Data from 5576 parents/carers of 2-17-year-old children collected between April 2020 and January 2021 was analysed using mixed-effect modelling and latent class growth (mixture) modelling. Results: Parental stress and depression, but not anxiety, were higher during the periods of restrictions. This pattern was most pronounced for parents with primary-school-aged children, those that worked at home or had other adults in the household. Being younger, reporting secondary or below education, working out of home, having secondary-school-aged children or children with special education needs (SEN)/neurodevelopmental disorders (ND) further moderated whether, how and when parental mental health symptoms changed. Although around three quarters of parents reported consistently low mental health symptoms, a substantial minority reported consistently high or increasing symptoms of anxiety, stress and depression. The latter were more likely to be parents who were younger than average, were a single adult in the household, had a pre-existing mental health diagnosis or had a child with special educational needs or a ND. Conclusions: These findings emphasise how different personal circumstances and pre-existing inequalities shaped how parents were affected by this unprecedented global pandemic and highlight the need for support and consideration to meet the needs of families in the future.

Understanding the Impact of Home Confinement on Children and Young People with ADHD and ASD During the COVID-19 Pandemic.

To understand whether the mental health of children and young people (CYP) with and without attention-deficit/hyperactivity disorder (ADHD) and/or autism spectrum disorder (ASD) were differentially affected by COVID-19. We analysed data (n = 6507) from the Co-Space study, a UK web-based longitudinal survey. CYP with ADHD (n = 160;2.5%), ASD (n = 465;7%), and ADHD + ASD (n = 155;2.4%) were compared with a reference group (n = 5727;88%) using parent-completed questionnaires [Strengths and Difficulties Questionnaire (SDQ) & Pandemic Anxiety Scale (PAS)]. Baseline to 1-month follow-up differences were compared using linear regression models. CYP with ADHD and/or ASD had higher scores at baseline than other CYP. At follow-up, CYP with ASD showed small but significant improvements in symptoms (SDQ), compared with the reference group. CYP with ASD experienced a worsening of disease anxiety (PAS) and CYP with ADHD a deterioration in functional impairment. These findings indicate a mixed pattern of pandemic-related impact for CYP with ADHD and/or ASD.

In the moment social experiences and perceptions of children with social anxiety disorder: A qualitative study.

OBJECTIVES: Childhood social anxiety disorder (SAD) is a common and disabling condition. General forms of cognitive behavioural treatments have demonstrated poorer efficacy for childhood SAD when compared to other childhood anxiety disorders and further understanding of the psychological factors that contribute to the maintenance of childhood SAD is warranted. Examining the social experiences of children with SAD may help to identify relevant psychological factors and increase our understanding of what keeps childhood SAD going. METHODS: The current study used reflexive thematic analysis to analyse the transcripts of interviews with 12 children aged 8-12 years with SAD who had been interviewed about their 'in the moment' social experiences during a social stress induction task. The interview topic guide included factors hypothesized to maintain SAD in adult cognitive models of the disorder. RESULTS: The interviews revealed both variety and commonalities in the experiences and interpretations of social events in children with SAD, captured in three related main themes: (i) Discomfort being the centre of attention, (ii) (Lack of) awareness of cognitions and (iii) Managing social fears. Findings indicated likely developmental influences on which maintenance mechanisms apply at which point in time. CONCLUSIONS: There is variation in the psychological mechanisms that children with SAD endorse and developmental factors are likely to influence when specific mechanisms are relevant. We now need further studies that take a developmentally informed approach to understand the nature of the association between the factors identified in this study and social anxiety in childhood to inform the development of more effective interventions for childhood SAD.

Identifying Child Anxiety Through Schools-identification to intervention (iCATS-i2i): protocol for a cluster randomised controlled trial to compare screening, feedback and intervention for child anxiety problems to usual school practice.

BACKGROUND: Systematically screening for child anxiety problems, and offering and delivering a brief, evidence-based intervention for children who are identified as likely to benefit would minimise common barriers that families experience in accessing treatment. We have developed a short parent-report child anxiety screening questionnaire, and procedures for administering screening questionnaires, sharing screening outcomes with families, and offering and delivering a brief parent-led online intervention (OSI: Online Support and Intervention for child anxiety) through schools. This trial aims to evaluate clinical and health economic outcomes for (1) children (aged 8-9) who screen positive for anxiety problems at baseline (target population) and (2) the wider population of all children in participating classes (total population) in schools randomly allocated to receive identification-to-intervention procedures and usual school practice ('screening and intervention'), compared to assessment and usual school practice only ('usual school practice').  METHODS: The trial design is a parallel-group, superiority cluster randomised controlled trial, with schools (clusters) randomised to 'screening and intervention' or 'usual school practice' arms in a 1:1 ratio stratified according to the level of deprivation within the school. We will recruit schools and participants in two phases (a pilot phase (Phase 1) and Phase 2), with progression criteria assessed prior to progressing to Phase 2. In total, the trial will recruit 80 primary/junior schools in England, and 398 children (199 per arm) who screen positive for anxiety problems at baseline (target population). In schools allocated to 'screening and intervention': (1) parents/carers will complete a brief parent-report child anxiety screening questionnaire (at baseline) and receive feedback on their child's screening outcomes (after randomisation), (2) classes will receive a lesson on managing fears and worries and staff will be provided with information about the intervention and (3) parents/carers of children who screen positive for anxiety problems (target population) will be offered OSI. OSI will also be available for any other parents/carers of children in participating classes (total population) who request it. We will collect child-, parent- and teacher-report measures for the target population and total population at baseline (before randomisation), 4 months, 12 months and 24 months post-randomisation. The primary outcome will be the proportion of children who screen positive for anxiety problems at baseline (target population) who screen negative for anxiety problems 12 months post-randomisation. DISCUSSION: This trial will establish if systematic screening for child anxiety problems, sharing screening outcomes with families and delivering a brief parent-led online intervention through schools is effective and cost-effective. TRIAL REGISTRATION: ISRCTN registry ISRCTN76119074. Prospectively registered on 4.1.2022.

School-based screening for childhood anxiety problems and intervention delivery: a codesign approach.

OBJECTIVES: A very small proportion of children with anxiety problems receive evidence-based treatment. Barriers to access include difficulties with problem identification, concerns about stigma and a lack of clarity about how to access specialist services and their limited availability. A school-based programme that integrates screening to identify those children who are most likely to be experiencing anxiety problems with the offer of intervention has the potential to overcome many of these barriers. This article is a process-based account of how we used codesign to develop a primary school-based screening and intervention programme for child anxiety problems. DESIGN: Codesign. SETTING: UK primary schools. PARTICIPANTS: Data were collected from year 4 children (aged 8-9 years), parents, school staff and mental health practitioners. RESULTS: We report how the developed programme was experienced and perceived by a range of users, including parents, children, school staff and mental health practitioners, as well as how the programme was adapted following user feedback. CONCLUSIONS: We reflect on the mitigation techniques we employed, the lessons learnt from the codesign process and give recommendations that may inform the development and implementation of future school-based screening and intervention programmes.

How did the mental health symptoms of children and adolescents change over early lockdown during the COVID-19 pandemic in the UK?

BACKGROUND: The COVID-19 pandemic has caused extensive disruption to the lives of children and young people. Understanding the psychological effects on children and young people, in the context of known risk factors is crucial to mitigate the effects of the pandemic. This study set out to explore how mental health symptoms in children and adolescents changed over a month of full lockdown in the United Kingdom in response to the pandemic. METHODS: UK-based parents and carers (n = 2673) of school-aged children and young people aged between 4 and 16 years completed an online survey about their child's mental health at two time points between March and May 2020, during early lockdown. The survey examined changes in emotional symptoms, conduct problems and hyperactivity/inattention. RESULTS: The findings highlighted particular deteriorations in mental health symptoms among preadolescent children, which translated to a 10% increase in those meeting possible/probable caseness criteria for emotional symptoms, a 20% increase in hyperactivity/inattention, and a 35% increase in conduct problems. In contrast, changes among adolescents were smaller (4% and 8% increase for hyperactivity/inattention and conduct problems, respectively) with a small reduction in emotional symptoms (reflecting a 3% reduction in caseness). Overall, there were few differences in change in symptoms or caseness over time according to demographic characteristics, but children and young people in low income households and those with special educational needs and/or neurodevelopmental disorders exhibited elevated symptoms (and caseness) at both time points. CONCLUSIONS: The findings highlight important areas of concern in terms of the potential impact of the first national lockdown on children and young people's adjustment. Developing an understanding of who has been most severely affected by the pandemic, and in what ways, is crucial in order to target effective support where it is most needed.

Examining changes in parent-reported child and adolescent mental health throughout the UK's first COVID-19 national lockdown.

BACKGROUND: The COVID-19 pandemic has significantly changed the lives of children and adolescents, forcing them into periods of prolonged social isolation and time away from school. Understanding the psychological consequences of the UK's lockdown for children and adolescents, the associated risk factors, and how trajectories may vary for children and adolescents in different circumstances is essential so that the most vulnerable children and adolescents can be identified, and appropriate support can be implemented. METHODS: Participants were a convenience sample of parents and carers (n = 2,988) in the UK with children and adolescents aged between 4 and 16 years who completed an online survey about their child's mental health. Growth curve analysis was used to examine the changes in conduct problems, hyperactivity/inattention, and emotional symptoms between the end of March/beginning of April and July using data from monthly assessments over four months. Additionally, growth mixture modelling identified mental health trajectories for conduct problems, hyperactivity/inattention, and emotional symptoms separately, and subsequent regression models were used to estimate predictors of mental health trajectory membership. RESULTS: Overall levels of hyperactivity and conduct problems increased over time, whereas emotional symptoms remained relatively stable, though declined somewhat between June and July. Change over time varied according to child age, the presence of siblings, and with Special Educational Needs (SEN)/Neurodevelopmental Disorders (ND). Subsequent growth mixture modelling identified three, four, and five trajectories for hyperactivity/inattention, conduct problems, and emotional symptoms, respectively. Though many children maintained 'stable low' symptoms, others experienced elevated symptoms by July. These children were more likely to have a parent/carer with higher levels of psychological distress, to have SEN/ND, or to be younger in age. CONCLUSIONS: The findings support previous literature and highlight that certain risk factors were associated with poorer mental health trajectories for children and adolescents during the pandemic.

Codesign and development of a primary school based pathway for child anxiety screening and intervention delivery: a protocol, mixed-methods feasibility study.

INTRODUCTION: Anxiety difficulties are among the most common mental health problems in childhood. Despite this, few children access evidence-based interventions, and school may be an ideal setting to improve children's access to treatment. This article describes the design, methods and expected data collection of the Identifying Child Anxiety Through Schools - Identification to Intervention (iCATS i2i) study, which aims to develop acceptable school-based procedures to identify and support child anxiety difficulties. METHODS AND ANALYSIS: iCATS i2i will use a mixed-methods approach to codesign and deliver a set of procedures-or 'pathway'-to improve access to evidence-based intervention for child anxiety difficulties through primary schools in England. The study will consist of four stages, initially involving in-depth interviews with parents, children, school staff and stakeholders (stage 1) to inform the development of the pathway. The pathway will then be administered in two primary schools, including screening, feedback to parents and the offer of treatment where indicated (stage 2), with participating children, parents and school staff invited to provide feedback on their experience (stages 3 and 4). Data will be analysed using Template Analysis. ETHICS AND DISSEMINATION: The iCATS i2i study was approved by the University of Oxford's Research Ethics Committee (REF R64620/RE001). It is expected that this codesign study will lead on to a future feasibility study and, if indicated, a randomised controlled trial. The findings will be disseminated in several ways, including via lay summary report, publication in academic journals and presentation at conferences. By providing information on child, parent, school staff and other stakeholder's experiences, we anticipate that the findings will inform the development of an acceptable evidence-based pathway for identification and intervention for children with anxiety difficulties in primary schools and may also inform broader approaches to screening for and treating youth mental health problems outside of clinics.

Cognitive therapy compared with CBT for social anxiety disorder in adolescents: a feasibility study.

BACKGROUND: Social anxiety disorder (SAD) is common, typically starts in adolescence and has a low natural recovery rate. Existing psychological treatments for adolescent SAD are only moderately effective. It is possible that recovery rates for adolescents could be substantially improved by adapting a psychological therapy that is highly effective among adults with SAD. OBJECTIVES: To train child and adolescent mental health services (CAMHS) therapists to deliver cognitive therapy for SAD in adolescents (CT-SAD-A) and assess therapist competence. To estimate the costs to the NHS of training therapists to deliver CT-SAD-A and the mean cost per adolescent treated. To examine the feasibility of a randomised controlled trial (RCT) to compare CT-SAD-A with the general form of cognitive-behavioural therapy that is more commonly used. DESIGN: During the training phase of the study, it became clear that the RCT would not be feasible because of high staff turnover and unfilled posts within CAMHS and changes in the nature of referrals, which meant that few young people with primary SAD were accessing some of the participating services. The study design was altered to comprise the following: a training case series of CT-SAD-A delivered in routine CAMHS, an estimate of the cost to the NHS of training therapists to deliver CT-SAD-A and of the mean cost per adolescent treated, and qualitative interviews with participating young people, parents, therapists and service managers/leads. SETTING: Five CAMHS teams within Berkshire Healthcare and Oxford Health NHS Foundation Trusts. PARTICIPANTS: Eight therapists received training in CT-SAD-A. Twelve young people received CT-SAD-A, delivered by six therapists. Six young people, six parents, seven therapists and three managers participated in qualitative interviews. INTERVENTIONS: Cognitive therapy for social anxiety disorder in adolescents (CT-SAD-A). MAIN OUTCOME MEASURES: Measured outcomes included social anxiety symptoms and diagnostic status, comorbid symptoms of anxiety and depression, social and general functioning, concentration in class and treatment acceptability. Patient level utilisation of the intervention was collected using clinicians' logs. RESULTS: Nine out of 12 participants achieved good outcomes across measures (r ≥ 0.60 across social anxiety measures). The estimated cost of delivering CT-SAD-A was £1861 (standard deviation £358) per person. Qualitative interviews indicated that the treatment was acceptable to young people, parents and therapists, but therapists and managers experienced challenges when implementing the training and treatment within the current CAMHS context. LIMITATIONS: Findings were based on a small, homogeneous sample and there was no comparison arm. CONCLUSIONS: CT-SAD-A is a promising treatment for young people with SAD, but the current CAMHS context presents challenges for its implementation. FUTURE WORK: Further work is needed to ensure that CAMHS can incorporate and test CT-SAD-A. Alternatively, CT-SAD-A should be delivered and tested in other settings that are better configured to treat young people whose lives are held back by SAD. The new schools Mental Health Support Teams envisaged in the 2017 Children's Mental Health Green Paper may provide such an opportunity. FUNDING: The National Institute for Health Research (NIHR) Health Technology Assessment programme. Individual funding was also provided for Cathy Creswell, David M Clark and Eleanor Leigh as follows: NIHR Research Professorship (Cathy Creswell); Wellcome Senior Investigator Award (Anke Ehlers and David M Clark); and the Wellcome Clinical Research Training Fellowship (Eleanor Leigh).

WHY DID WE DO THIS STUDY?: People with social anxiety disorder (SAD) are scared of social situations because they fear embarrassment or humiliation. SAD usually starts at around 13 years of age, typically does not go away without treatment, and leads to personal and social difficulties. Clark and Wells' cognitive therapy for SAD in adults (CT-SAD) is a talking therapy that produces excellent outcomes. CT-SAD has not previously been adapted for or tested with adolescents. WHAT DID WE DO?: We adapted CT-SAD so that it was suitable for adolescents (CT-SAD-A). We intended to compare this with current practice in child and adolescent mental health services (CAMHS). However, we were not able to complete the trial owing to a high staff turnover and a lack of young people with SAD coming into CAMHS. Instead, we examined outcomes for young people who received CT-SAD-A during the therapist training phase and explored the views of young people, their parents, the therapists and CAMHS managers about CT-SAD-A and the study. WHAT DID WE FIND?: Young people's outcomes were very promising; for example, 10 out of 12 participants reported a reliable improvement in social anxiety. The young people and their parents were generally positive about the treatment. Therapists were also positive about the treatment, but they and their managers found it difficult to implement the treatment within their CAMHS teams. The cost to the NHS to treat young people with SAD within this study compared favourably with the cost of treating adults. WHAT DOES THIS MEAN?: We need to be careful about drawing conclusions from a small sample size, but we suggest that further work is needed to ensure that CT-SAD-A can be delivered and tested in CAMHS. Alternatively, CT-SAD-A should be delivered and tested in community or school settings that can treat young people whose lives are held back by SAD.

Delivering cognitive therapy for adolescent social anxiety disorder in NHS CAMHS: a qualitative analysis of the experiences of young people, their parents and clinicians-in-training.

BACKGROUND: Social anxiety disorder (SAD) is common. It usually starts in adolescence, and without treatment can disrupt key developmental milestones. Existing generic treatments are less effective for young people with SAD than with other anxiety disorders, but an adaptation of an effective adult therapy (CT-SAD-A) has shown promising results for adolescents. AIMS: The aim of this study was to conduct a qualitative exploration to contribute towards the evaluation of CT-SAD-A for adoption into Child and Adolescent Mental Health Services (CAMHS). METHOD: We used interpretative phenomenological analysis (IPA) to analyse the transcripts of interviews with a sample of six young people, six parents and seven clinicians who were learning the treatment. RESULTS: Three cross-cutting themes were identified: (i) endorsing the treatment; (ii) finding therapy to be collaborative and active; challenging but helpful; and (iii) navigating change in a complex setting. Young people and parents found the treatment to be useful and acceptable, although simultaneously challenging. This was echoed by the clinicians, with particular reference to integrating CT-SAD-A within community CAMHS settings. CONCLUSIONS: The acceptability of the treatment with young people, their parents and clinicians suggests further work is warranted in order to support its development and implementation within CAMHS settings.

Delivering cognitive therapy for adolescent social anxiety disorder in NHS CAMHS: a clinical and cost analysis.

BACKGROUND: Cognitive therapy, based on the Clark and Wells (1995) model, is a first-line treatment for adults with social anxiety disorder (SAD), and findings from research settings suggest it has promise for use with adolescents (Cognitive Therapy for Social Anxiety Disorder in Adolescents; CT-SAD-A). However, for the treatment to be suitable for delivery in routine clinical care, two questions need to be addressed. AIMS: Can therapists be trained to achieve good outcomes in routine Child and Adolescent Mental Health Services (CAMHS), and what are the costs associated with training and treatment? METHOD: CAMHS therapists working in two NHS trusts received training in CT-SAD-A. They delivered the treatment to adolescents with SAD during a period of supervised practice. We examined the clinical outcomes for the 12 patients treated during this period, and estimated costs associated with treatment and training. RESULTS: Treatment produced significant improvements in social anxiety symptoms, general anxiety and depression symptoms, and reductions in putative process measures. Seventy-five per cent (9 out of 12) patients showed a reliable and clinically significant improvement in social anxiety symptoms, and 64% (7/11) lost their primary diagnosis of SAD. The total cost to the NHS of the CT-SAD-A treatment was £4047 (SD = £1003) per adolescent treated, of which £1861 (SD = £358) referred to the specific estimated cost of face-to-face delivery; the remaining cost was for training and supervising therapists who were not previously familiar with the treatment. CONCLUSIONS: This study provides preliminary evidence that clinicians can deliver good patient outcomes for adolescents with SAD in routine CAMHS during a period of supervised practice after receiving a 2-day training workshop. Furthermore, the cost of delivering CT-SAD-A with adolescents appeared to be no more than the cost of delivering CT-SAD with adults.

Research Review: The relationship between social anxiety and social cognition in children and adolescents: a systematic review and meta-analysis.

BACKGROUND: Childhood Social Anxiety Disorder (SAD) is common and impairing. The recommended treatment is a disorder specific form of cognitive behavioural therapy (CBT) that includes social skills training and, whilst they appear to be more effective than more general treatments, it is not clear whether social skills training is the critical component involved in improved outcomes, particularly given that evidence for the relationship between social anxiety and social skills deficits in children is inconsistent. This may be partly due to an overlap in their observable features, and because the nature of the association may vary in different contexts (e.g. according to child age). An alternative approach is to examine the association between social anxiety and the social cognitive capacities that underpin social skills. This paper aims to examine the association between social anxiety and social cognition in children and adolescents, and examine conceptual and methodological moderators of this relationship. METHODS: Papers published between 1980 and 2019 were screened systematically. Fifty studies were identified from which an effect size could be calculated for the relationship between social anxiety and social cognition, including 15,411 children and adolescents. RESULTS: An overall significant, but moderate effect (r = -.15) was identified, where increased social anxiety was associated with lower social cognitive ability. Moderation analyses revealed specific associations within studies examining social anxiety among participants with and without ASD who were older than 7 years old, and studies assessing the relationship between social anxiety and specific aspects of Theory of Mind (ToM). No significant association was identified between social anxiety and emotion recognition. CONCLUSIONS: Significant associations between social anxiety and social cognitive abilities appear to be accounted for by elevated social anxiety among children with ASD, and those with difficulties in specific aspects of ToM but not broader social skills, such as emotion recognition. This reinforces the importance of accurately identifying and treating social anxiety within ASD populations. In addition, treatments for social anxiety among neurotypical populations may benefit from targeting particular aspects of ToM rather than emotion recognition and other broad social skills.

Do clinically anxious children cluster according to their expression of factors that maintain child anxiety?

BACKGROUND: Cognitive Behaviour Therapy (CBT) is an effective treatment for childhood anxiety disorders, yet a significant proportion of children do not benefit from it. CBT for child anxiety disorders typically includes a range of strategies that may not all be applicable for all affected children. This study explored whether there are distinct subgroups of children with anxiety disorders who are characterized by their responses to measures of the key mechanisms that are targeted in CBT (i.e. interpretation bias, perceived control, avoidance, physiological arousal, and social communication). METHODS: 379 clinically anxious children (7-12 years) provided indices of threat interpretation, perceived control, expected negative emotions and avoidance and measures of heart rate recovery following a speech task. Parents also reported on their children's social communication difficulties using the Social Communication Questionnaire (SCQ). RESULTS: Latent profile analysis identified three groups, reflecting (i) 'Typically anxious' (the majority of the sample and more likely to have Generalized anxiety disorder); (ii) 'social difficulties' (characterized by high SCQ and more likely to have social anxiety disorder and be male); (iii) 'Avoidant' (characterized by low threat interpretation but high avoidance and low perceived control). LIMITATIONS: Some measures may have been influenced by confounding variables (e.g. physical variability in heart rate recovery). Sample characteristics of the group may limit the generalizability of the results. CONCLUSIONS: Clinically anxious children appear to fall in to subgroups that might benefit from more targeted treatments that focus on specific maintenance factors. Treatment studies are now required to establish whether this approach would lead to more effective and efficient treatments.

Research Review: Is anxiety associated with negative interpretations of ambiguity in children and adolescents? A systematic review and meta-analysis.

BACKGROUND: The tendency to interpret ambiguity as threat (negative interpretation) has been implicated in cognitive models of anxiety. A significant body of research has examined the association between anxiety and negative interpretation, and reviews suggest there is a robust positive association in adults. However, evidence with children and adolescents has been inconsistent. This study aimed to provide a systematic quantitative assessment of the association between anxiety and negative interpretation in children and adolescents. METHOD: Following systematic searches and screening for eligibility, 345 effects sizes from 77 studies were meta-analysed. RESULTS: Overall a medium positive association was found between anxiety and negative interpretation in children and adolescents ( d^  = .62). Two variables significantly moderated this effect. Specifically, the association increased in strength with increasing age and when the content of ambiguous scenarios matched the anxiety subtype under investigation. CONCLUSIONS: Results extend findings from adult literature by demonstrating an association in children and adolescents with evidence for content specificity in the association. Age effects imply a role for development. Results raise considerations for when and for whom clinical treatments for anxiety focusing on interpretation bias are appropriate. The vast majority of studies included in the review have used correlational designs and there are a limited number of studies with young children. The results should be considered with these limitations in mind.