BackgroundRandomised controlled trials (RCTs) are recommended as the ‘gold standard’ in evaluating health care interventions. The conduct of RCTs is often impacted by difficulties surrounding recruitment and retention of participants in both adult and child populations. Factors influencing recruitment and retention of children to RCTs can be more complex than in adults. There is little synthesised evidence of what influences participation in research involving parents and children.AimTo identify predictors of recruitment and retention in RCTs involving children.MethodsA systematic review of RCTs was conducted to synthesise the available evidence. An electronic search strategy was applied to four databases and restricted to English language publications. Quantitative studies reporting participant predictors of recruitment and retention in RCTs involving children aged 0–12 were identified. Data was extracted and synthesised narratively. Quality assessment of articles was conducted using a structured tool developed from two existing quality evaluation checklists.ResultsTwenty-eight studies were included in the review. Of the 154 participant factors reported, 66 were found to be significant predictors of recruitment and retention in at least one study. These were classified as parent, child, family and neighbourhood characteristics. Parent characteristics (e.g. ethnicity, age, education, socioeconomic status (SES)) were the most commonly reported predictors of participation for both recruitment and retention. Being young, less educated, of an ethnic minority and having low SES appear to be barriers to participation in RCTs although there was little agreement between studies. When analysed according to setting and severity of the child’s illness there appeared to be little variation between groups. The quality of the studies varied. Articles adhered well to reporting guidelines around provision of a scientific rationale for the study and background information as well as displaying good internal consistency of results. However, few studies discussed the external validity of the results or provided recommendations for future research.ConclusionParent characteristics may predict participation of children and their families to RCTs; however, there was a lack of consensus. Whilst sociodemographic variables may be useful in identifying which groups are least likely to participate they do not provide insight into the processes and barriers to participation for children and families. Further studies that explore variables that can be influenced are warranted. Reporting of studies in this field need greater clarity as well as agreed definitions of what is meant by retention.Electronic supplementary materialThe online version of this article (doi:10.1186/s13063-016-1415-0) contains supplementary material, which is available to authorized users.

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BackgroundThere is a global imperative to respond to the challenge of a growing ‘old-age dependency ratio’ by ensuring the workforce is healthy enough to remain in work for longer. Currently more than half of older workers leave before the default retirement age, and in some countries (e.g. the UK), the time spent in retirement is increasing. At the same time across Europe, there is a gender employment gap, with 14.5% fewer female workers between 55–64 years old, and a large variation in the participation of older women in the workforce (ranging from 30–75%). As older women are under-represented in the workforce, increasing employment in this group has the propensity to go some way towards reducing the old-age dependency ratio to ensure continued economic growth.ObjectivesThis review explores the barriers and facilitators to extended working lives in Europe, particularly those that impact on women.MethodsA systematic mapping review process was undertaken using four electronic databases, MEDLINE, PsychoINFO, PsychEXTRA via Ovid and AgeLine via EBSCO, using the terms, ‘work’, ‘ageing’, ‘retirement’, ‘pension’, ‘old’, ‘barrier’, ‘extended working life’, ‘gender’ and ‘health and well-being’. Hand searching was also carried out in the International Journal of Aging and Human Development and the International Journal of Aging and Society.ResultsThe search resulted in 15 English language studies published from 1st January 2005 to the current date that met the inclusion criteria.Key findingsThe key factors that influenced decisions to retire or extend working lives in Europe were health, social factors, workplace factors, and financial security and pension arrangements.Conclusions and implications of the key findingsHealth was found to be the most commonly cited barrier to extended working lives in Europe, and a number of social inequalities to work exist by gender. Structural factors exist, such as the gender pay gap, which disadvantages women, while the nature of work itself differs by gender and can have a negative impact on health. Currently, women tend to exit the labour market earlier than men; however, changes in the state pension age are resulting in women being required to work for as long as men, in most countries. For women to remain healthy at work, workplaces need to consider a range of interventions, including flexible arrangements to both work and retirement to enable women to balance the demands of work with domestic and caring responsibilities that particularly impact on them.

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Purpose – The purpose of this paper is to explore barriers to employment for visually impaired (VI) women and potential solutions to those barriers. Design/methodology/approach – Mixed methods, comprising three phases; first, exploratory interviews with VI women (n=6) and employers (n=3); second, a survey to assess the barriers to employment experienced by this group (n=96); and third, in-depth interviews with VI women (n=15). This paper reports phases 2 and 3. Findings – The most commonly reported barriers to work were: negative employer attitudes; the provision of adjustments in the workplace; restricted mobility; and having an additional disability/health condition. Significantly more barriers were reported by women: who reported that their confidence had been affected by the barriers they had experienced; with dependents under 16; and women who wanted to work. Research limitations/implications – Key solutions to these barriers included: training for employers; adaptive equipment; flexibility; better support; training and work experience opportunities; and more widely available part-time employment opportunities. Originality/value – This paper adds to the literature in respect of the key barriers to employment for VI women, together with providing key solutions to these barriers.

BackgroundCommunities In Charge of Alcohol (CICA) takes an Asset Based Community Development (ABCD) approach to reducing alcohol harm. Through a cascade training model, supported by a designated local co-ordinator, local volunteers are trained to become accredited ‘Alcohol Health Champions’ to provide brief opportunistic advice at an individual level and mobilise action on alcohol availability at a community level. The CICA programme is the first time that a devolved UK region has attempted to coordinate an approach to building health champion capacity, presenting an opportunity to investigate its implementation and impact at scale. This paper describes the protocol for a stepped wedge randomised controlled trial of an Alcohol Health Champions programme in Greater Manchester which aims to strengthen the evidence base of ABCD approaches for health improvement and reducing alcohol-related harm.MethodsA natural experiment that will examine the effect of CICA on area level alcohol-related hospital admissions, Accident and Emergency attendances, ambulance call outs, street-level crime and anti-social behaviour data. Using a stepped wedged randomised design (whereby the intervention is rolled out sequentially in a randomly assigned order), potential changes in health and criminal justice primary outcomes are analysed using mixed-effects log-rate models, differences-in-differences models and Bayesian structured time series models. An economic evaluation identifies the set-up and running costs of CICA using HM Treasury approved standardised methods and resolves cost-consequences by sector. A process evaluation explores the context, implementation and response to the intervention. Qualitative analyses utilise the Framework method to identify underlying themes.DiscussionWe will investigate: whether training lay people to offer brief advice and take action on licensing decisions has an impact on alcohol-related harm in local areas; the cost-consequences for health and criminal justice sectors, and; mechanisms that influence intervention outcomes. As well as providing evidence for the effectiveness of this intervention to reduce the harm from alcohol, this evaluation will contribute to broader understanding of asset based approaches to improve public health.Trial registrationISRCTN 81942890, date of registration 12/09/2017.

A variety of new non-professional roles, such as health trainers and community food workers, have evolved from recent UK public health policy developments. These roles predominantly operate in communities characterised by extreme social deprivation. Their remit is to offer local people support to help change lifestyle 'choices', for example, healthy eating or drinking responsibly. However, encouraging people to change health-related behaviour often ignores the underlying social determinants of health related behaviour. Health trainers and community food workers have been identified as being able to bridge the gap between the health professional and lay person, because of their ability to identify with local people. The challenges faced by these non-professionals, working at the coal-face of communities, and in a new and evolving role, are as yet poorly understood and this paper details the mechanism of reflective learning adopted by these practitioners in order to explore the professional practices involved. Emergent issues faced by these new practitioners include: understanding the boundaries between the trainer role and other health services; and the issues raised by the community, for example, presenting with non-health reasons such as financial crisis, which the trainers were often unprepared to deal with, rather than 'lack of health skills' (e.g. cooking skills). This paper explores how reflective learning processes can deconstruct the experiences of this 'new level of the health workforce' who have on the one hand the sensibility and sensitivity to develop relationships with individuals and households in poorer communities, yet are ill equipped to deal with the wider structural factors often determining behaviour.

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