Background If research addresses the questions of relevance to patients and clinicians, decision-makers will be better equipped to design and deliver health services which meet their needs. To this end, a number of initiatives have engaged patients and clinicians in setting research agendas. This paper aimed to scope the research literature addressing such efforts.

When swift, accurate appraisal of evidence is required to inform policy concerning broad research questions, and budgetary constraints limit the employment of large research teams, researchers face a significant challenge which is sometimes met by reviewing existing systematic reviews. In this paper we highlight the challenges inherent in the reviews of reviews (RoR) method in order to advance understanding of this important tool for policy makers. Drawing on our experiences, we present, where possible, potential solutions to these challenges to demonstrate that RoRs, despite their limitations, can be useful for mediating policy-relevant evidence at speed.

Objectives: To examine evidence from studies exploring the relationship between childhood obesity and educational attainment. Design: A systematic review of secondary analyses and observational studies published in English after 1997 examining attainment as measured by grade point average or other validated measure, in children aged 6 to16 years, in high-income countries. Methods: Eleven databases from the fields of public health, education and social science were searched, along with 19 specialist registers and catalogues. Hand searching of relevant journals, contacting of experts and citation searching were undertaken. Two reviewers used standardized tools to independently carry out data extraction and assess the quality of included studies. Evidence was synthesized in a narrative summary. Results: Twenty-nine studies were identified for inclusion. Overall, the evidence suggested that higher weight is weakly associated with lower educational attainment among children and young people. Differences between average attainment of overweight and non-overweight children were marginal, with potentially negligible real-world implications for test scores. Limited evidence suggested that little variation in achievement was explained by weight status alone. Almost half the studies found that other factors, such as socioeconomic status, may better explain much of the negative association between obesity and attainment. Conclusion: Theoretical and methodological inconsistencies were evident both within and between many of the studies. As such, the results of the included studies must be interpreted with caution. If the negative association between obesity and attainment is accepted, it still remains doubtful whether obesity is exerting a socially important effect upon educational attainment.

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ObjectiveTo explore the perspectives of young people in the UK on obesity, body size, shape and weight.DesignSystematic review of qualitative studies using thematic synthesis.Data sourcesSensitive searches of 18 electronic databases from 1997 to February 2010 supplemented by grey literature searches.Study selectionStudies produced since 1997 using qualitative methods to collect perspectives of people aged 12–18 years in the UK, reporting methods for data collection or analysis. Studies of people with eating disorders and those rated low in reliability and usefulness were excluded.ResultsSearches identified 30 studies involving over 1400 young people from a range of contexts. Young people of all sizes placed considerable emphasis on personal responsibility, and on the social, rather than health implications of being overweight. Young people with experience of obesity described severe, unrelenting, size-related abuse and isolation. Regardless of their own size, young people were judgemental of individuals who were overweight, but those with experience of obesity described an environment that contained multiple barriers to weight loss. Only one study asked young people directly what might support them to have a healthy body size. Study findings were configured under three main themes, labelled with quotes from included studies: general perceptions of size and society's responses (‘It's on your conscience all the time’); the experiences of young people who were overweight (‘If I had the choice I wouldn't be this size’) and these larger young people's experiences of trying to loose weight and suggestions for action (‘Make sure, even when it's hard, you've got people there’).ConclusionsThe perspectives of young people in the UK, when synthesised across the spectrum of body sizes, paint a picture of a stigmatising and abusive social world. Research and policy need to engage young people actively so as to address the social implications of obesity.

Systematically reviewing this literature for UK policy has highlighted that some groups may be at risk of poor post-cosmetic procedure outcomes. Practitioners and patients must explore reasons for seeking cosmetic procedures and discuss all potential results and alternative solutions. Future research should employ more robust methodologies to identify effects in those at risk, led by consensus on a core set of psychological outcomes.

For low-risk women, health and other benefits can result from having their maternity care led by midwives rather than physicians. Moreover, there appear to be no negative impacts on mothers and infants receiving midwife-led care.

Using Toulmin's argumentation theory, we analysed the texts of systematic reviews in the area of workplace health promotion to explore differences in the modes of reasoning embedded in reports of narrative synthesis as compared with reports of meta‐analysis. We used framework synthesis, grounded theory and cross‐case analysis methods to analyse 85 systematic reviews addressing intervention effectiveness in workplace health promotion. Two core categories, or ‘modes of reasoning’, emerged to frame the contrast between narrative synthesis and meta‐analysis: practical–configurational reasoning in narrative synthesis (‘what is going on here? What picture emerges?’) and inferential–predictive reasoning in meta‐analysis (‘does it work, and how well? Will it work again?’). Modes of reasoning examined quality and consistency of the included evidence differently. Meta‐analyses clearly distinguished between warrant and claim, whereas narrative syntheses often presented joint warrant–claims. Narrative syntheses and meta‐analyses represent different modes of reasoning. Systematic reviewers are likely to be addressing research questions in different ways with each method. It is important to consider narrative synthesis in its own right as a method and to develop specific quality criteria and understandings of how it is carried out, not merely as a complement to, or second‐best option for, meta‐analysis. © 2016 The Authors. Research Synthesis Methods published by John Wiley & Sons Ltd.