Editorial introductions

Editorial introductions.

BackgroundHealth research is important for the achievement of the Sustainable Development Goals. However, there are many challenges facing health research, including securing sufficient funds, building capacity, producing research findings and using both local and global evidence, and avoiding waste. A WHO initiative addressed these challenges by developing a conceptual framework with four functions to guide the development of national health research systems. Despite some progress, more is needed before health research systems can meet their full potential of improving health systems. The WHO Regional Office for Europe commissioned an evidence synthesis of the systems-level literature. This Opinion piece considers its findings before reflecting on the vast additional literature available on the range of specific health research system functions related to the various challenges. Finally, it considers who should lead research system strengthening.Main textThe evidence synthesis identifies two main approaches for strengthening national health research systems, namely implementing comprehensive and coherent strategies and participation in partnerships. The literature describing these approaches at the systems level also provides data on ways to strengthen each of the four functions of governance, securing financing, capacity-building, and production and use of research. Countries effectively implementing strategies include England, Ireland and Rwanda, whereas West Africa experienced effective partnerships. Recommended policy approaches for system strengthening are context specific. The vast literature on each function and the ever-growing evidence-base are illustrated by considering papers in just one key journal, Health Research Policy and Systems, and analysing the contribution of two national studies. A review of the functions of the Iranian system identifies over 200 relevant and mostly national records; an analysis of the creation of the English National Institute for Health Research describes the key leadership role played by the health department. Furthermore, WHO is playing leadership roles in helping coordinate partnerships within and across health research systems that have been attempting to tackle the COVID-19 crisis.ConclusionsThe evidence synthesis provides a firm basis for decision-making by policy-makers and research leaders looking to strengthen national health research systems within their own national context. It identifies five crucial policy approaches — conducting situation analysis, sustaining a comprehensive strategy, engaging stakeholders, evaluating impacts on health systems, and partnership participation. The vast and ever-growing additional literature could provide further perspectives, including on crucial leadership roles for health ministries.

SummaryBackgroundMaternal antenatal depression is associated with offspring psychological disorders, but obesity is also widely implicated in maternal depression and neurodevelopment. In pregnant women with obesity we explored interrelationships between antenatal depressive symptom trajectories and multiple exposures implicated in fetal neurodevelopment which could explain these associations, as a prelude to exploring associations with infant mental health.MethodsThe UK Pregnancies Better Eating and Activity Trial (UPBEAT) recruited multi-ethnic pregnant women with obesity (BMI >= 30kg/m2) between March 2009 and June 2014 from 8 UK sites and 1369 were included to model longitudinal antenatal depressive symptoms from Edinburgh Postnatal Depression Scale (EPDS) scores using Latent Class Growth Analysis. Classes were compared on maternal baseline demography, biomarkers of metabolism, inflammation and placental function, infection, diet and by pregnancy and birth outcomes. Odds ratios, mean differences and 95% Confidence Intervals were calculated using robust auxiliary modelling techniques.FindingsThe chosen model produced four classes: “Not Depressed” (n=575 [42%], “reference”), “Mild” (n=523 [37·5%]), “Moderate” (n=219 [16%]) and “Severe” (n=62 [4·5%]) symptom trajectories. Socio-economic deprivation and ethnic diversity were greater in Severe and Moderate classes. Dietary glycaemic load and saturated fat intake were higher in Severe and Moderate classes (at 17 and 27 weeks). Higher Interleukin-6, glycoprotein acetyls (17 weeks), glucose (34 weeks) and lower placental growth factor (PlGF, 17 and 27 weeks) was found in the Severe class. PlGF was lower in the Moderate class (27 weeks). Infection was least likely in the Not Depressed class across gestation. Risks of preterm birth were associated with Severe depressive symptoms (aOR 3·05[1·11 to 8·36]).InterpretationComprehensive phenotyping exposes important fetal exposures implicated in adverse neurodevelopment, differing by depression class. This study expands substantially on causal models of suboptimal fetal neurodevelopment and offers potential new targets for intervention in obese pregnant women.FundingJNS was funded by a PhD studentship from the National Institute for Health Research (NIHR) Biomedical Research Centre based at Guy's and St Thomas’ NHS Foundation Trust and King's College London. UPBEAT was supported by the European Union's 7th Framework Programme (FP7/2007-2013), project EarlyNutrition; grant agreement no. 289346 and the National Institute for Health Research (NIHR) (UK) Programme Grants for Applied Research Programme (RP-0407-10452), Medical Research Council UK Project Grant (MR/L002477/1). Support was also provided by the Chief Scientist Office Scotland, Guy's and St Thomas’ Charity and Tommy's Charity (Registered charity no. 1060508). LP and SLW are funded by Tommy's Charity.

Nurturing a Research-active Clinical Oncology Workforce: A Trainee Perspective

After 7 years at the helm, it is time for the current editors to steer the ship into port and pass editorial responsibility for Clinical and Experimental Allergy to a new team led by Graham Roberts. Clinical and Experimental Allergy started life in 1971 as Clinical Allergy with Professor Jack Pepys as its founding editor. On Jack Pepys's retirement in 1979, the journal was co-edited by Dr James Kerr and Dr William Parish. In 1985, Professors Barry Kay and Stephen Holgate took over as co-editors, rebadging as Clinical and Experimental Allergy in 1987, and this successful partnership was maintained for 25 years with Jennifer Mitchell as the omnipresent editorial manager. We became editors in 2009. Initially guided by Jennifer, we then went through a period of transition before Catherine Hyland took over the administration of the journal in 2013. In an age where publishing can be rather anonymous, it is important to have a familiar name in the editorial office and we hope that Catherine's career with the journal will be as enduring as Jennifer's. We offer thanks for her excellent work and long may it continue. The journal is owned by Wiley who recently merged with the previous owner Blackwell. Amanda McLean-Inglis who manages the journal for the publisher has provided wise and unstinting support during our tenure, and for this we are very grateful. When we started, we wanted to place our readers and authors at the heart of the journal. This meant providing an efficient, responsive and above all fair assessment of submitted papers. It meant making sure that the work we published was relevant to our readership and contained robust and important observations that would make a difference; either to clinical practice or academic endeavour. Guided by our reviewers, quality and priority have been the lodestones for our decisions. It is oft stated, but nonetheless true, that peer review is at the core of academic publishing and we are indebted to the tireless support from colleagues who have without reward offered their opinions in a thoughtful and even-handed manner. It has been heartening that while peer review has an inevitable element of arbitrariness and luck, largely depending on the quality and prejudice of the reviewers, we have found it to be possessed of complete integrity with reviewers giving honest, fair and constructive opinions, entirely lacking in malice or gamesmanship. In the vanguard of our reviewing process have been our associate editors who have also offered invaluable editorial advice on difficult judgement calls and the direction of the journal. It is always hard to know where to place the bar for acceptance. Too strict and you have no papers to publish, too liberal and the quality suffers. We have attempted to provide a consistent decision-making process so that authors could gain a sense of what we would be likely to publish. This was aided by having just three editors from broadly similar training backgrounds making decisions on original papers. We were encouraged that there was generally close agreement both among ourselves and with our reviewers. Scientific fraud gets considerable attention and rightly so as it undermines trust. However, we have come across very few instances where outright fraud has been suspected and several of these cases have been historical and impossible to substantiate. There is always the risk of complacency with concern that fraud is being missed, but we have sensed that our reviewers have been generally alert to the possibility of dishonesty and have rarely found it. We know how important it is for authors to get quick decisions on their papers and how galling to wait months before a response which can still be negative. We have tried hard to keep the time to first decision as low as possible and have averaged well below 30 days overall and 35 days for papers sent out to review. There is a balance to be struck between wanting to come to a swift decision and waiting for enough reviews to be available to make sure the decision is sound. There have been a small number of papers where the time to first decision has been unacceptably long, and we apologize to the authors for this delay, which was usually due to a laggardly reviewer. Over time, we have felt increasingly confident in pre-judging the priority that reviewers would give to papers. This has given us the confidence to increase the number of papers rejected without review from about 10% when we started to about 35%. This has reduced the burden on our reviewers who are increasingly hard pressed by the proliferation of journals demanding their time. We felt that it was better for authors to have a quick decision rather than wait for several weeks for an inevitable rejection. We are conscious that we will occasionally have got this wrong and missed well cited papers that should have been published in the journal. We are also aware that high immediate reject rates deny authors the opportunity of receiving ideas on how to improve their papers. We apologize to any author who has felt hard done by with this approach, although fortunately we have had very few appeals to reconsider the immediate reject decision. In fact, overall we have had very few appeals. Academia makes one philosophical about rejection. The structure of the journal was set at the outset of our editorship and has stayed largely unchanged, consisting of an Editor's Choice picking out the personal highlights in the issue, editorials, reviews, opinion pieces and guidelines which set the editorial tone and an average of ten original papers divided into seven sections covering the whole discipline of allergy. Just lately, we have started to publish brief reports as research letters which we hope will prove a popular format. It has always been fun picking out the front covers which have ranged between complex schematic diagrams to pictures of furry animals. We have had a number of special issues or series of articles on non-atopic asthma, severe asthma, immunotherapy, epidemiological risk factors for allergic disease and most recently mechanisms in allergic disease. These have been offered by Wiley as virtual issues which we hope you have enjoyed reading. The journal has published a wide range of original articles covering the full gamut of allergic disease, and this work has been summarized every year in a review article allowing the reader to quickly revise the key observations in allergy over the previous 12 months. We are a truly international journal with readers, authors, reviewers and editors from all over the globe. While readers will take a view on the quality of the papers in a journal, the field of scientific publishing is dominated by bibliometrics and for an editor there is no bucking this tyranny. The impact factor (IF) published by Thomson Scientific remains the most widely used of these measures of citations, and we have done our best to improve our IF without compromising the integrity of the journal. In the year before we took over, the IF was 3.6 and in 2015 it was 4.7, having briefly touched 5.0 in 2011. This places the journal third in the rankings of allergy journals publishing original papers and in the top quartile for both allergy and immunology. While pleased at the increase over our tenure, we would have liked to have done better and wish the new editorial team well in their efforts to get the IF consistently above 5. There have been several changes to the journal over the years in both style and content, and now it is time for another shift in gears. The digital age means that most libraries buy the on-line version of the journal, allowing readers to consume its contents electronically. Very few institutions or individuals, other than members of the British Society for Allergy and Clinical Immunology (BSACI), take the paper format of Clinical and Experimental Allergy. As a result, Wiley with the agreement of the BSACI have decided to move the journal to online only. It is expensive to print and distribute the paper journal and hard to justify in these cost-conscious, environmentally sensitive times. For those of us who are romantically attached to the look and feel of the journal, discursively scanning its content for articles that might catch our attention, it is a wistful moment, but time moves on. While always time-consuming and occasionally relentless, it has been a joy to edit our fine journal and we hope that you feel we have done a reasonable job. We have certainly done our best; conscious of our obligation to the history of the journal, BSACI, Wiley-Blackwell and above all our readers, reviewers and authors. Allergy is a varied and endlessly fascinating discipline that unfortunately can have a tremendous and occasionally tragic impact on the quality of life of the many people who suffer from this common group of diseases. It has been a great privilege to do our bit towards trying to make their life a little better. AJW is part-funded by the Leicester NIHR Respiratory Biomedical Research Unit. CJC acknowledges financial support from the Department of Health via the National Institute for Health Research (NIHR) comprehensive Biomedical Research Centre award to Guy's & St Thomas’ NHS Foundation Trust in partnership with King's College London and King's College Hospital NHS Foundation Trust. The opinions expressed in this article are not necessarily those of the NIHR. Conflict of interests: The authors declare no conflict of interests.

Motivational interviewing (MI) enhanced with behaviour change techniques (BCTs) and deployed by health trainers targeting multiple risk factors for cardiovascular disease (CVD) may be more effective than interventions targeting a single risk factor. The clinical effectiveness and cost-effectiveness of an enhanced lifestyle motivational interviewing intervention for patients at high risk of CVD in group settings versus individual settings and usual care (UC) in reducing weight and increasing physical activity (PA) were tested. This was a three-arm, single-blind, parallel randomised controlled trial. A total of 135 general practices across all 12 South London Clinical Commissioning Groups were recruited. A total of 1742 participants aged 40-74 years with a ≥ 20.0% risk of a CVD event in the following 10 years were randomised. The intervention was designed to integrate MI and cognitive-behavioural therapy (CBT), delivered by trained healthy lifestyle facilitators in 10 sessions over 1 year, in group or individual format. The control group received UC. Simple randomisation was used with computer-generated randomisation blocks. In each block, 10 participants were randomised to the group, individual or UC arm in a 4 : 3 : 3 ratio. Researchers were blind to the allocation. The primary outcomes are change in weight (kg) from baseline and change in PA (average number of steps per day over 1 week) from baseline at the 24-month follow-up, with an interim follow-up at 12 months. An economic evaluation estimates the relative cost-effectiveness of each intervention. Secondary outcomes include changes in low-density lipoprotein cholesterol and CVD risk score. The mean age of participants was 69.75 years (standard deviation 4.11 years), 85.5% were male and 89.4% were white. At the 24-month follow-up, the group and individual intervention arms were not more effective than UC in increasing PA [mean 70.05 steps, 95% confidence interval (CI) -288 to 147.9 steps, and mean 7.24 steps, 95% CI -224.01 to 238.5 steps, respectively] or in reducing weight (mean -0.03 kg, 95% CI -0.49 to 0.44 kg, and mean -0.42 kg, 95% CI -0.93 to 0.09 kg, respectively). At the 12-month follow-up, the group and individual intervention arms were not more effective than UC in increasing PA (mean 131.1 steps, 95% CI -85.28 to 347.48 steps, and mean 210.22 steps, 95% CI -19.46 to 439.91 steps, respectively), but there were reductions in weight for the group and individual intervention arms compared with UC (mean -0.52 kg, 95% CI -0.90 to -0.13 kg, and mean -0.55 kg, 95% CI -0.95 to -0.14 kg, respectively). The group intervention arm was not more effective than the individual intervention arm in improving outcomes at either follow-up point. The group and individual interventions were not cost-effective. Enhanced MI, in group or individual formats, targeted at members of the general population with high CVD risk is not effective in reducing weight or increasing PA compared with UC. Future work should focus on ensuring objective evidence of high competency in BCTs, identifying those with modifiable factors for CVD risk and improving engagement of patients and primary care. Current Controlled Trials ISRCTN84864870. This project was funded by the National Institute for Health Research (NIHR) Health Technology Assessment programme and will be published in full in Health Technology Assessment; Vol. 23, No. 69. See the NIHR Journals Library website for further project information. This research was part-funded by the NIHR Biomedical Research Centre at South London and Maudsley NHS Foundation Trust and King's College London.

BackgroundDementia, of all long term illnesses, accounts for the greatest chronic disease burden, and the number of people with age-related diseases like dementia is predicted to double by 2040. People with advanced dementia experience similar symptoms to those dying with cancer yet professional carers find prognostication difficult and struggle to meet palliative care needs, with physical symptoms undetected and untreated. While elements of good practice in this area have been identified in theory, the factors which enable such good practice to be implemented in real world practice need to be better understood. The aim of this study was to determine expert views on the key factors influencing good practice in end of life care for people with dementia.MethodsSemi-structured telephone and face-to-face interviews with topic guide, verbatim transcription and thematic analysis. Interviews were conducted with experts in dementia care and/or palliative care in England (n = 30).ResultsFour key factors influencing good practice in end of life care for people with dementia were identified from the expert interviews: leadership and management of care, integrating clinical expertise, continuity of care, and use of guidelines.ConclusionsThe relationships between the four key factors are important. Leadership and management of care have implications for the successful implementation of guidelines, while the appropriate and timely use of clinical expertise could prevent hospitalisation and ensure continuity of care. A lack of integration across health and social care can undermine continuity of care. Further work is needed to understand how existing guidelines and tools contribute to good practice.DisclaimerThis article presents independent research funded by the National Institute for Health Research (NIHR) under its Programme Grants for Applied Research programme (Grant Reference Number RP-PG-0611-20005). The views expressed are those of the author(s) and not necessarily those of the NHS, the NIHR or the Department of Health.

Editorial introductions.

Background: Only a paucity of studies have addressed clinician perspectives on patient decisional conflict, in making complex decisions between dialysis and conservative management (renal supportive and palliative care). Aim: To explore clinician views on decisional conflict in patients with end-stage kidney disease. Design: Interpretive, qualitative study. Setting and participants: As part of the wider National Institute for Health Research, PAlliative Care in chronic Kidney diSease study, semi-structured interviews were conducted with clinicians (nephrologists n = 12; 7 female and clinical nurse specialists n = 15; 15 female) across 10 renal centres in the United Kingdom. Interviews took place between April 2015 and October 2016 and a thematic analysis of the interview data was undertaken. Results: Three major themes with associated subthemes were identified. The first, ‘Frequent changing of mind regarding treatment options’, revealed how patients frequently altered their treatment decisions, some refusing to make a decision until deterioration occurred. The second theme, ‘Obligatory beneficence’, included clinicians helping patients to make informed decisions where outcomes were uncertain. In weighing up risks and benefits, and the impact on patients, clinicians sometimes withheld information they thought might cause concern. Finally, ‘Intricacy of the decision’ uncovered clinicians’ views on the momentous and brave decision to be made. They also acknowledged the risks associated with this complex decision in giving prognostic information which might be inaccurate. Limitations: Relies on interpretative description which uncovers constructed truths and does not include interviews with patients. Conclusion: Findings identify decisional conflict in patient decision-making and a tension between the prerequisite for shared decision-making and current clinical practice. Clinicians also face conflict when discussing treatment options due to uncertainty in equipoise between treatments and how much information should be shared. The findings are likely to resonate across countries outside the United Kingdom.

BackgroundBreathlessness is a common and distressing symptom of many advanced diseases, affecting around 2 million people in the UK. Breathlessness increases with disease progression and often becomes chronic or refractory. Breathlessness-triggered services that integrate holistic assessment and specialist palliative care input as part of a multiprofessional approach have been developed for this group, offering tailored interventions to support self-management and reduce distress.ObjectivesThe aim was to synthesise evidence on holistic breathlessness services for people with advanced disease and chronic or refractory breathlessness. The objectives were to describe the structure, organisation and delivery of services, determine clinical effectiveness, cost-effectiveness and acceptability, identify predictors of treatment response, and elicit stakeholders’ evidence-based priorities for clinical practice, policy and research.DesignThe mixed-methods evidence synthesis comprised three components: (1) a systematic review to determine the clinical effectiveness, cost-effectiveness and acceptability of holistic breathlessness services; (2) a secondary analysis of pooled individual data from three trials to determine predictors of clinical response; and (3) a transparent expert consultation (TEC), comprising a stakeholder workshop and an online consensus survey, to identify stakeholders’ priorities.ResultsThirty-seven papers reporting on 18 holistic breathlessness services were included in the systematic review. Most studies enrolled people with thoracic cancer, were delivered over 4–6 weeks, and included breathing training, relaxation techniques and psychological support. Meta-analysis demonstrated significant reductions in the Numeric Rating Scale (NRS) distress due to breathlessness, significant reductions in the Hospital Anxiety and Depressions Scale (HADS) depression scores, and non-significant reductions in the Chronic Respiratory Disease Questionnaire (CRQ) mastery and HADS anxiety, favouring the intervention. Recipients valued education, self-management interventions, and expertise of the staff in breathlessness and person-centred care. Evidence for cost-effectiveness was limited and inconclusive. The responder analysis (n = 259) revealed baseline CRQ mastery and NRS distress to be strong predictors of the response to breathlessness services assessed by these same measures, and no significant influence from baseline breathlessness intensity, patient diagnosis, lung function, health status, anxiety or depression. The TEC elicited 34 priorities from stakeholders. Seven priorities received high agreement and consensus, reflecting stakeholders’ (n = 74) views that services should be person-centred and multiprofessional, share their breathlessness management skills with others, and recognise the roles and support needs of informal carers.LimitationsThe evidence synthesis draws predominantly from UK services and may not be generalisable to other settings. Some meta-analyses were restricted by reporting biases and statistical heterogeneity.ConclusionsDespite heterogeneity in composition and delivery, holistic breathlessness services are highly valued by recipients and can lead to significant improvements in the distress caused by breathlessness and depression. Outcomes of improved mastery and reduced distress caused by breathlessness are not influenced by patient diagnosis, lung function or health status. Stakeholders highlighted the need for improved access to person-centred, multiprofessional breathlessness services and support for informal carers.Future workOur research suggests that key therapeutic components of holistic breathlessness services be considered in clinical practice and models of delivery and educational strategies to address stakeholders’ priorities tested.Study registrationThis study is registered as PROSPERO CRD42017057508.FundingThe National Institute for Health Research (NIHR) Health Services and Delivery programme. Matthew Maddocks, Wei Gao and Irene J Higginson are supported by the NIHR Collaboration for Leadership in Applied Health Research and Care (CLAHRC) South London; Matthew Maddocks is supported by a NIHR Career Development Fellowship (CDF-2017-009), William D-C Man is supported by the NIHR CLAHRC Northwest London and Irene J Higginson holds a NIHR Emeritus Senior Investigator Award.

AimThis study updates a previous scoping review published by the National Institute for Health Research (NIHR) in 2006 (Roland M, McDonald R, Sibbald B.Outpatient Services and Primary Care: A Scoping Review of Research Into Strategies For Improving Outpatient Effectiveness and Efficiency. Southampton: NIHR Trials and Studies Coordinating Centre; 2006) and focuses on strategies to improve the effectiveness and efficiency of outpatient services.Findings from the scoping reviewEvidence from the scoping review suggests that, with appropriate safeguards, training and support, substantial parts of care given in outpatient clinics can be transferred to primary care. This includes additional evidence since our 2006 review which supports general practitioner (GP) follow-up as an alternative to outpatient follow-up appointments, primary medical care of chronic conditions and minor surgery in primary care. Relocating specialists to primary care settings is popular with patients, and increased joint working between specialists and GPs, as suggested in the NHS Five Year Forward View, can be of substantial educational value. However, for these approaches there is very limited information on cost-effectiveness; we do not know whether they increase or reduce overall demand and whether the new models cost more or less than traditional approaches. One promising development is the increasing use of e-mail between GPs and specialists, with some studies suggesting that better communication (including the transmission of results and images) could substantially reduce the need for some referrals.Findings from the substudiesBecause of the limited literature on some areas, we conducted a number of substudies in England. The first was of referral management centres, which have been established to triage and, potentially, divert referrals away from hospitals. These centres encounter practical and administrative challenges and have difficulty getting buy-in from local clinicians. Their effectiveness is uncertain, as is the effect of schemes which provide systematic review of referrals within GP practices. However, the latter appear to have more positive educational value, as shown in our second substudy. We also studied consultants who held contracts with community-based organisations rather than with hospital trusts. Although these posts offer opportunities in terms of breaking down artificial and unhelpful primary–secondary care barriers, they may be constrained by their idiosyncratic nature, a lack of clarity around roles, challenges to professional identity and a lack of opportunities for professional development. Finally, we examined the work done by other countries to reform activity at the primary–secondary care interface. Common approaches included the use of financial mechanisms and incentives, the transfer of work to primary care, the relocation of specialists and the use of guidelines and protocols. With the possible exception of financial incentives, the lack of robust evidence on the effect of these approaches and the contexts in which they were introduced limits the lessons that can be drawn for the English NHS.ConclusionsFor many conditions, high-quality care in the community can be provided and is popular with patients. There is little conclusive evidence on the cost-effectiveness of the provision of more care in the community. In developing new models of care for the NHS, it should not be assumed that community-based care will be cheaper than conventional hospital-based care. Possible reasons care in the community may be more expensive include supply-induced demand and addressing unmet need through new forms of care and through loss of efficiency gained from concentrating services in hospitals. Evidence from this study suggests that further shifts of care into the community can be justified only if (a) high value is given to patient convenience in relation to NHS costs or (b) community care can be provided in a way that reduces overall health-care costs. However, reconfigurations of services are often introduced without adequate evaluation and it is important that new NHS initiatives should collect data to show whether or not they have added value, and improved quality and patient and staff experience.FundingThe NIHR Health Services and Delivery Research programme.

ObjectivesTo review the progress of public involvement (PPI) in NIHR (National Institute for Health Research) research, identify barriers and enablers, reflect on the influence of PPI on the wider health...

台灣地區呼吸器依賴病人之發生率、生活品質、及成本效果研究

Background Seven-day working in hospitals is a current priority of international health research and policy. Previous research has shown variability in delivering evidence-based clinical interventions across different times of the day and week. We aimed to identify factors influencing such variations in London hyperacute stroke units. Objectives To investigate variations in quality of acute stroke care and outcomes by day and time of admission in London hyperacute stroke units, and to identify factors influencing such variations. Design This was a prospective cohort study using anonymised patient-level data from the Sentinel Stroke National Audit Programme. Factors influencing variations in care and outcomes were studied through interview and observation data. Setting The setting was acute stroke services in London hyperacute stroke units. Participants A total of 7094 patients with a primary diagnosis of stroke took part. We interviewed hyperacute stroke unit staff (n = 76), including doctors, nurses, therapists and administrators, and 31 patients and carers. We also conducted non-participant observations of delivery of care at different times of the day and week (n = 45, ≈102 hours). Intervention Hub-and-spoke model for care of suspected acute stroke patients in London with performance standards was designed to deliver uniform access to high-quality hyperacute stroke unit care across the week. Main outcome measures Indicators of quality of acute stroke care, mortality at 3 days after admission, disability at the end of the inpatient spell and length of stay. Data sources Sentinel Stroke National Audit Programme data for all patients in London hyperacute stroke units with a primary diagnosis of stroke between 1 January and 31 December 2014, and nurse staffing data for all eight London hyperacute stroke units for the same period. Results We found no variation in quality of care by day and time of admission across the week in terms of stroke nursing assessment, brain scanning and thrombolysis in London hyperacute stroke units, nor in 3-day mortality nor disability at hospital discharge. Other quality-of-care measures significantly varied by day and time of admission. Quality of care was better if the nurse in charge was at a higher band and/or there were more nurses on duty. Staff deliver ‘front-door’ interventions consistently by taking on additional responsibilities out of hours, creating continuities between day and night, building trusting relationships and prioritising ‘front-door’ interventions. Limitations We were unable to measure long-term outcomes as our request to the Sentinel Stroke National Audit Programme, the Healthcare Quality Improvement Partnership and NHS Digital for Sentinel Stroke National Audit Programme data linked with patient mortality status was not fulfilled. Conclusions Organisational factors influence 24 hours a day, 7 days a week (24/7), provision of stroke care, creating temporal patterns of provision reflected in patient outcomes, including mortality, length of stay and functional independence. Future work Further research would help to explore 24/7 stroke systems in other contexts. We need a clearer understanding of variations by looking at absolute time intervals, rather than achievement of targets. Research is needed with longer-term mortality and modified Rankin Scale data, and a more meaningful range of outcomes. Funding This project was funded by the National Institute for Health Research (NIHR) Health Services and Delivery Research programme and will be published in full in Health Services and Delivery Research; Vol. 8, No. 34. See the NIHR Journals Library website for further project information.

Background Cognitive impairment is common in older people admitted to hospital, but previous research has focused on single conditions. Objective This project sits in phase 0/1 of the Medical Research Council Framework for the Development and Evaluation of Complex Interventions. It aims to develop an understanding of current health-care outcomes. This will be used in the future development of a multidomain intervention for people with confusion (dementia and cognitive impairment) in general hospitals. The research was conducted from January 2015 to June 2018 and used data from people admitted between 2012 and 2013. Design For the review of outcomes, the systematic review identified peer-reviewed quantitative epidemiology measuring prevalence and associations with outcomes. Screening for duplication and relevance was followed by full-text review, quality assessment and a narrative review (141 papers). A survey sought opinion on the key outcomes for people with dementia and/or confusion and their carers in the acute hospital (n = 78). For the analysis of outcomes including cost, the prospective cohort study was in a medical admissions unit in an acute hospital in one Scottish health board covering 10% of the Scottish population. The participants (n = 6724) were older people (aged ≥ 65 years) with or without a cognitive spectrum disorder who were admitted as medical emergencies between January 2012 and December 2013 and who underwent a structured nurse assessment. ‘Cognitive spectrum disorder’ was defined as any combination of delirium, known dementia or an Abbreviated Mental Test score of < 8 out of 10 points. The main outcome measures were living at home 30 days after discharge, mortality within 2 years of admission, length of stay, re-admission within 2 years of admission and cost. Data sources Scottish Morbidity Records 01 was linked to the Older Persons Routine Acute Assessment data set. Results In the systematic review, methodological heterogeneity, especially concerning diagnostic criteria, means that there is significant overlap in conditions of patients presenting to general hospitals with confusion. Patients and their families expect that patients are discharged in the same or a better condition than they were in on admission or, failing that, that they have a satisfactory experience of their admission. Cognitive spectrum disorders were present in more than one-third of patients aged ≥ 65 years, and in over half of those aged ≥ 85 years. Outcomes were worse in those patients with cognitive spectrum disorders than in those without: length of stay 25.0 vs. 11.8 days, 30-day mortality 13.6% vs. 9.0%, 1-year mortality 40.0% vs. 26.0%, 1-year mortality or re-admission 62.4% vs. 51.5%, respectively (all p < 0.01). There was relatively little difference by cognitive spectrum disorder type; for example, the presence of any cognitive spectrum disorder was associated with an increased mortality over the entire period of follow-up, but with different temporal patterns depending on the type of cognitive spectrum disorder. The cost of admission was higher for those with cognitive spectrum disorders, but the average daily cost was lower. Limitations A lack of diagnosis and/or standardisation of diagnosis for dementia and/or delirium was a limitation for the systematic review, the quantitative study and the economic study. The economic study was limited to in-hospital costs as data for social or informal care costs were unavailable. The survey was conducted online, limiting its reach to older carers and those people with cognitive spectrum disorders. Conclusions Cognitive spectrum disorders are common in older inpatients and are associated with considerably worse health-care outcomes, with significant overlap between individual cognitive spectrum disorders. This suggests the need for health-care systems to systematically identify and develop care pathways for older people with cognitive spectrum disorders, and avoid focusing on only condition-specific pathways. Future work Development and evaluation of a multidomain intervention for the management of patients with cognitive spectrum disorders in hospital. Study registration This study is registered as PROSPERO CRD42015024492. Funding This project was funded by the National Institute for Health Research (NIHR) Health Services and Delivery Research programme and will be published in full in Health Services and Delivery Research; Vol. 9, No. 8. See the NIHR Journals Library website for further project information.