Background: Although mental health difficulties can severely complicate the lives of children and young people (CYP) with long-term physical conditions (LTCs), there is a lack of evidence about the effectiveness of interventions to treat them.Objectives: To evaluate the clinical effectiveness and cost-effectiveness of interventions aiming to improve the mental health of CYP with LTCs (review 1) and explore the factors that may enhance or limit their delivery (review 2).Data sources: For review 1, 13 electronic databases were searched, including MEDLINE, EMBASE, PsycINFO, Cochrane Central Register of Controlled Trials (CENTRAL), Cumulative Index to Nursing and Allied Health Literature (CINAHL) and Science Citation Index. For review 2, MEDLINE, PsycINFO and CINAHL were searched. Supplementary searches, author contact and grey literature searches were also conducted.Review methods: The first systematic review sought randomised controlled trials (RCTs) and economic evaluations of interventions to improve elevated symptoms of mental ill health in CYP with LTCs. Effect sizes for each outcome were calculated post intervention (Cohen’sd). When appropriate, random-effects meta-analyses produced pooled effect sizes (d). Review 2 located primary qualitative studies exploring experiences of CYP with LTCs, their families and/or practitioners, regarding interventions aiming to improve the mental health and well-being of CYP with LTCs. Synthesis followed the principles of metaethnography. An overarching synthesis integrated the findings from review 1 and review 2 using a deductive approach. End-user involvement, including topic experts and CYP with LTCs and their parents, was a feature throughout the project.Results: Review 1 synthesised 25 RCTs evaluating 11 types of intervention, sampling 12 different LTCs. Tentative evidence from seven studies suggests that cognitive–behavioural therapy interventions could improve the mental health of CYP with certain LTCs. Intervention–LTC dyads were diverse, with few opportunities to meta-analyse. No economic evaluations were located. Review 2 synthesised 57 studies evaluating 21 types of intervention. Most studies were of individuals with cancer, a human immunodeficiency virus (HIV) infection or mixed LTCs. Interventions often aimed to improve broader mental health and well-being, rather than symptoms of mental health disorder. The metaethnography identified five main constructs, described in an explanatory line of argument model of the experience of interventions. Nine overarching synthesis categories emerged from the integrated evidence, raising implications for future research.Limitations: Review 1 conclusions were limited by the lack of evidence about intervention effectiveness. No relevant economic evaluations were located. There were no UK studies included in review 1, limiting the applicability of findings. The mental health status of participants in review 2 was usually unknown, limiting comparability with review 1. The different evidence identified by the two systematic reviews challenged the overarching synthesis.Conclusions: There is a relatively small amount of comparable evidence for the effectiveness of interventions for the mental health of CYP with LTCs. Qualitative evidence provided insight into the experiences that intervention deliverers and recipients valued. Future research should evaluate potentially effective intervention components in high-quality RCTs integrating process evaluations. End-user involvement enriched the project.Study registration: This study is registered as PROSPERO CRD42011001716.Funding: The National Institute for Health Research (NIHR) Health Technology Assessment programme and the NIHR Collaboration for Leadership in Applied Health Research and Care South West Peninsula.

To summarize intracluster correlation coefficient (ICC) estimates for pupil health outcomes from school-based cluster randomized trials (CRTs) across world regions and describe their relationship with study design characteristics and context. School-based CRTs reporting ICCs for pupil health outcomes were identified through a literature search of MEDLINE (via Ovid). ICC estimates were summarized both overall and for different categories of study characteristics. Two hundred and forty-six articles reporting ICC estimates were identified. The median (interquartile range) ICC was 0.031 (0.011 to 0.08) at the school level (N = 210) and 0.063 (0.024 to 0.1) at the class level (N = 46). The distribution of ICCs at the school level was well described by the beta and exponential distributions. Besides larger ICCs in definitive trials than feasibility studies, there were no clear associations between study characteristics and ICC estimates. The distribution of school-level ICCs worldwide was similar to previous summaries from studies in the United States. The description of the distribution of ICCs will help to inform sample size calculations and assess their sensitivity when designing future school-based CRTs of health interventions.

Background: Searching the World Wide Web using search engines and websites can be conducted to identify studies for systematic reviews. When searching to support systematic reviews, the searcher faces challenges in using the basic search interfaces of most search engines and websites.Objectives: To describe and evaluate current practice of web searching in a cross‐sectional sample of Cochrane Reviews. The study also describes the stated aims of web searching, i.e. the identification of published or unpublished studies or both.Methods: A six‐month cross‐sectional sample of Cochrane Reviews was identified via the Cochrane Library. Reviews were inspected for detail about web searching. Findings were described and evaluated using a framework of key principles for web searching.Results: 423 Cochrane Reviews published August 2016–January 2017 were identified of which 61 (14%) reported web searching. Web searches were typically simplified versions of the bibliographic database search. Advanced and iterative approaches were not widely used. Google Search and Google Scholar were the most popular search engines. Most reports stated identification of grey literature as their aim.Conclusion: Basic web search interfaces necessitate simple searches. However, there is scope to use more diverse search features and techniques and a greater variety of search engines.

Background: Service users detained for assessment and/or treatment under the Mental Health Act 1983 (MHA 1983) are allocated a ‘Nearest Relative’ (NR). The NR has access to confidential information about the service user and can make decisions about their care and treatment. Tensions exist regarding the identification, displacement and powers of the NR.Objectives: To examine the experiences of service users, carers and relevant professionals of the NR provisions of the MHA 1983, and the equivalent Named Person (NP) provisions in Scotland. Five research objectives were defined: understanding the experiences of and issues associated with (1) the identification of the NR, (2) the displacement of the NR, (3) confidentiality and information-sharing, (4) access to support from carers and (5) making decisions about treatment or care.Data sources: Seven bibliographic databases were searched: MEDLINE (via Ovid), MEDLINE In-Process & Other Non-Indexed Citations (via Ovid), PsycINFO (via Ovid), Social Policy and Practice (via Ovid), Health Management Information Consortium (via Ovid), Cumulative Index to Nursing and Allied Health Literature (via EBSCOhost) and Applied Social Sciences Index and Abstracts (via ProQuest). Citation searching, author contact and grey literature searches were conducted.Review methods: A rapid systematic review was conducted in 6 weeks. Evidence published after 1998 from the UK pertaining to the experiences of those involved in compulsory detention under the MHA 1983 (or UK variants), including service users, carers, family members, NRs, NPs, mental health professionals, policy-makers and lawyers, was sought. Study selection, data extraction and critical appraisal were completed independently by two reviewers. We looked for data about experiences, which were obtained through qualitative means or surveys. Included studies containing several paragraphs of participant quotations and/or author interpretations were entered into a framework synthesis; the rest were summarised descriptively. The framework synthesis was based on the five research objectives and refined using the findings of key studies from England and Scotland and an inductive thematic analysis.Results: Twenty studies were included with 12 prioritised for framework synthesis. Four themes emerged: (1) issues regarding the identification of the NR/NP, (2) confidentiality and information-sharing, (3) enabling the use of the NR/NP role and (4) the importance of maintaining relationships. The involvement of service users in choosing their representative and the role of services in supporting the NR/NP was identified as important.Limitations: There is little recent evidence to inform this important and complex discussion. The review was rigorously conducted despite the short time scale; however, a more in-depth, iterative thematic analysis of all the included studies may have provided additional insights into the mechanisms underpinning the issues.Conclusions: The NR provisions of the MHA 1983 are complex and of significant importance to individuals detained under the Mental Health Act and their carers. This rapid review provides specific examples of issues that individuals may experience. More research is needed to aid understanding of this complex topic.Future work: Primary research specifically focused on the perceived and actual use and impact of the NR provisions in England and Scotland.Study registration: This study is registered as PROSPERO CRD42018088237.Funding: The National Institute for Health Research Health Services and Delivery Research programme.