‘It’s not really our thing’:lessons in engaging care homes in palliative care research

Background: In England and Wales there are just under 400,000 older adults residing in care homes at any one time. Despite this, care home residents are often excluded from epidemiological studies and little routine data are collected within care homes. Data on palliative care provided by care homes is reported to the Care Quality Commission, but the quality of care is often locally determined. There is ongoing research in this area aimed at collecting representative, internationally comparable data, such as the PACE study. Aims: To discuss the challenges encountered in engaging and recruiting care homes across England in the PACE study, a retrospective, cross sectional survey of deaths over three months. The study collected questionnaire data from care home staff, general practitioners and relatives of care home residents on their experiences of palliative care. It aimed to include 200 deceased residents in fifty care homes over a one-year period. Methods: The research team reviewed the barriers and challenges encountered throughout the research process, including developing a representative sampling framework, obtaining ethical approvals, advertising the study and recruiting care homes. Results: There is a lack of clarity regarding where care homes are located within the scope of ethical approval bodies. Recruitment through random sampling was found to be less effective compared to recruitment through ENRICH networks. Barriers to care home participation included concerns regarding sharing information, fear of opening up to potential criticism, lack of resources and misunderstandings regarding confidentiality. Conclusions: The development of care home networks and informal contacts can improve the rate and extent of research involvement. Whilst representativeness can be attained, random samples and ensuring a rigorous sample through these methods of recruitment remains a challenge

Antidepressants versus placebo for depression in primary care

Background Concern has been expressed about the relevance of secondary care studies to primary care patients specifically about the effectiveness of antidepressant medication. There is a need to review the evidence of only those studies that have been conducted comparing antidepressant efficacy with placebo in primary care-based samples. Objectives To determine the efficacy and tolerability of antidepressants in patients (under the age of 65 years) with depression in primary care. Search strategy All searches were conducted in September 2007. The Cochrane Depression, Anxiety and Neurosis Group (CCDAN) Controlled Trials Register was searched, together with a supplementary search of MEDLINE, PsycINFO, EMBASE, LILACS, CINAHL and PSYNDEX. Abstracts of all possible studies for inclusion were assessed independently by two reviewers. Further trials were sought through searching the reference lists of studies initially identified and by scrutinising other relevant review papers. Selected authors and experts were also contacted. Selection criteria Studies were selected if they were randomised controlled trials of tricyclic antidepressants (TCAs) or selective serotonin reuptake inhibitors (SSRIs) versus placebo in adults. Older patients (over 65 years) were excluded. Patients had to be recruited from a primary care setting. For continuous outcomes the Hamilton Depression scale of the Montgomery Asberg Scale was requred. Data collection and analysis Data were extracted using data extraction forms by two reviewers independently, with disagreements resolved by discussion. A similar process was used for the validity assessment. Pooling of results was done using Review Manager 5. The primary outcome was depression reduction, based on a dichotomous measure of clinical response, using relative risk (RR), and on a continuous measure of depression symptoms, using the mean difference (MD), with 95% confidence intervals (CI). Main results There were fourteen studies (16 comparisons) with extractable data included in the review, of which ten studies examined TCAs, two examined SSRIs and two included both classes, all compared with placebo. The number of participants in the intervention groups was 1364 and in the placebo groups 919. Nearly all studies were of short duration, typically 6-8 weeks. Pooled estimates of efficacy data showed an RR of 1.24, 95% CI 1.11-1.38 in favour of TCAs against placebo. For SSRIs this was 1.28, 95% CI 1.15 to 1.43.. The numbers needed to treat (NNT) for TCAs ranged from 7 to 16 {median NNT 9} patient expected event rate ranged from 63% to 26% respectively) and for SSRIs from 7 to 8 {median NNT 7} (patient expected event rate ranged from 48% to 42% respectively) . The numbers needed to harm (NNH for withdrawal due to side effects) ranged from 4 to 30 for TCAs (excluding three studies with no harmful events leading to withdrawal) and 20 to 90 for SSRIs. Authors' conclusions Both TCAs and SSRIs are effective for depression treated in primary care. This review is published as a Cochrane Review in the Cochrane Database of Systematic Reviews 2009, Issue 3. Cochrane Reviews are regularly updated as new evidence emerges and in response to comments and criticisms, and the Cochrane Database of Systematic Reviews should be consulted for the most recent version of the Review.</p

Engaging nursing homes (NHs) in the PACE study:comparing recruitment in observational and intervention research designs

Background: NH residents are often excluded from epidemiological studies, demonstrating a need for representative, internationally comparable research in this area. Data on palliative care provided by NHs is reported to the Care Quality Commission in England, but the quality of care is often locally determined. Aims: To review the challenges encountered in engaging and recruiting NHs across England to the European Commission funded PACE research project; a two part study comprising of a retrospective, cross sectional survey of deaths and a cluster randomised controlled trial (RCT) of the ‘PACE Steps to Success’ end of life training intervention. Methods: Study 1 collected quantitative data from NH staff, general practitioners and relatives of 200 deceased NH residents in 50 NHs. Study 2 aimed to recruit twelve NHs, six in each arm of the RCT. The research team encountered challenges throughout the research process, including developing a representative sampling framework, obtaining ethical approvals, advertising the study and recruiting NHs. Results: Study 1 has recruited 44 NHs resulting in data on 92 deceased residents from 32 research visits made so far. Identifying NHs through random sampling resulted in fewer NHs recruited compared to advertising through the ENRICH NHs research networks. Average death rates per NH were lower than expected (3.1 per three months). Study 2 is in the process of recruiting twelve NHs with the support of local ENRICH teams by January 2016. Lack of time and resources, concerns regarding data protection and fear of opening up to potential criticism were identified as barriers to participation. Conclusions: Observational and RCT research designs in NHs require distinct recruitment processes. Whilst representativeness was attained in study 1, ensuring a rigorous random sample was not possible. In both studies, the engagement with NH research networks and informal contacts improved the rate and extent of research involvement

Predicting the response of a submillimeter bolometer to cosmic rays

Bolometers designed to detect. submillimeter radiation also respond to cosmic, gamma, and x rays. Because detectors cannot be fully shielded from such energy sources, it is necessary to understand the effect of a photon or cosmic-ray particle being absorbed. The resulting signal (known as a glitch) can then be removed from raw data. We present measurements using an Americium-241 gamma radiation source to irradiate a prototype bolometer for the High Frequency Instrument in the Planck Surveyor satellite. Our measurements showed no variation in response depending on where the radiation was absorbed, demonstrating that the bolometer absorber and thermistor thermalize quickly. The bolometer has previously been fully characterized both electrically and optically. We find that using optically measured time constants underestimates the time taken for the detector to recover from a radiation absorption event. However, a full thermal model for the bolometer, with parameters taken from electrical and optical measurements, provides accurate time constants. Slight deviations from the model were seen at high energies; these can be accounted for by use of an extended model

Absence of zero-temperature transmission rate of a double-chain tight-binding model for DNA with random sequence of nucleotides in thermodynamic limit

The zero-temperature transmission rate spectrum of a double-chain tight-binding model for real DNA is calculated. It is shown that a band of extended-like states exists only for finite chain length with strong inter-chain coupling. While the whole spectrum tends to zero in thermodynamic limit, regardless of the strength of inter-chain coupling. It is also shown that a more faithful model for real DNA with periodic sugar-phosphate chains in backbone structures can be mapped into the above simple double-chain tight-binding model. Combined with above results, the transmission rate of real DNA with long random sequence of nucleotides is expected to be poor.Comment: 5 pages, 9 figure

Cluster randomised trials in the medical literature: two bibliometric surveys

Background: Several reviews of published cluster randomised trials have reported that about half did not take clustering into account in the analysis, which was thus incorrect and potentially misleading. In this paper I ask whether cluster randomised trials are increasing in both number and quality of reporting. Methods: Computer search for papers on cluster randomised trials since 1980, hand search of trial reports published in selected volumes of the British Medical Journal over 20 years. Results: There has been a large increase in the numbers of methodological papers and of trial reports using the term 'cluster random' in recent years, with about equal numbers of each type of paper. The British Medical Journal contained more such reports than any other journal. In this journal there was a corresponding increase over time in the number of trials where subjects were randomised in clusters. In 2003 all reports showed awareness of the need to allow for clustering in the analysis. In 1993 and before clustering was ignored in most such trials. Conclusion: Cluster trials are becoming more frequent and reporting is of higher quality. Perhaps statistician pressure works

Comparing palliative care in care homes across Europe (PACE):protocol of a cross-sectional study of deceased residents in six EU countries

Objectives While a growing number of older people are dying in care homes, palliative care has developed in these settings only recently. Crosscountry representative comparative research hardly exists in this area. As part of a large EU-funded project, we aim to undertake representative comparative research in care homes in Europe, to describe and compare six countries in terms of 1) resident outcomes, quality and costs of palliative and end-of-life care; 2) palliative care structures and staff knowledge and attitudes towards palliative care. We also aim to explore country, facility, staff, patient and care characteristics related to better outcomes at resident level. Design and Methods To obtain a representative nationwide sample, we will conduct a large-scale cross-sectional study of deceased residents in care homes in Belgium, Finland, Italy, the Netherlands, Poland and the United Kingdom, using proportional stratified random sampling (taking into account region, facility type and bed capacity). In each country, all participating care homes retrospectively report all deaths of residents in and outside the facilities over the previous three-month period. For each case, structured questionnaires including validated instruments are sent to (1) the administrator/manager, (2) staff member most involved in care, (3) treating physician (GP or elderly care physician), and (4) a closely involved relative. It is estimated that, per country, 50 care homes are needed on average to obtain a minimum of 200 deceased residents. Collected data include clinical and socio-demographic characteristics, quality of dying, quality and costs of palliative care and end-of-life care, and palliative care structures at facility level and country level. To obtain a representative view of staff knowledge and attitudes regarding palliative care, PACE will conduct a cross-sectional study of staff working in the participating care homes. Conclusion Considering the growing challenges associated with aging in all European countries, there is an urgent need to build a robust international comparative evidence-base that can inform the development of policies to target improved palliative care in care homes. By describing this research protocol, we hope to inform international research in care homes on how to perform representative end-of-life care research in these settings and better understand which systems are associated with better outcomes

Comparing Diet and Exercise Monitoring Using Smartphone App and Paper Diary: A Two-Phase Intervention Study

Background: There is increasing recognition that personalized approaches may be more effective in helping people establish healthier eating patterns and exercise more, and that this approach may be particularly effective in adolescents. Objective: The objective of this study was to investigate the use of a smartphone app (FoodWiz2) in supporting healthy lifestyle choices in adolescence. Methods: Participants (N=34: 11 male, 23 female) aged 16-19 years in full- or part-time education were recruited from sixth form colleges, schools, and other further education establishments in Norfolk and Suffolk, United Kingdom, between February and May 2015. Participants recorded food intake and exercise using a paper diary for 4-5 weeks and then used the app for the same duration. Initial nutrition education and general support were provided during the paper diary use, but the app included personalized messages sent in response to app activity. At the end of each study phase, participants completed an online questionnaire to describe their experience of using the paper diary and app. Results: Record completion declined throughout the study, possibly affected by examination pressure. Food intake data showed increased fruit consumption and significantly reduced consumption of chocolate snacks (P=.01) and fizzy drinks (P=.002) among participants using the app. Questionnaire responses indicated that the app was generally preferred to the paper diary, in particular, the app was seen as less boring to use (P=.03) and more acceptable in social settings (P<.001). Conclusions: This app-based approach has shown the potential for a more effective approach to improving adolescent diet and exercise levels

Primary Care Staff's Views and Experiences Related to Routinely Advising Patients about Physical Activity. A Questionnaire Survey

Background: United Kingdom public health policy has recently re-emphasised the role of primary health care professionals in tackling increasing levels of physical inactivity within the general population. However, little is known about the impact that this has had in practice. This study explores Scottish primary care staff's knowledge, attitudes and experiences associated with advising patients about physical activity during routine consultations. Methods: A cross-sectional questionnaire survey of general practitioners (or family physicians), practice nurses and health visitors based in four health regions was conducted during 2004. The main outcome measures included: i) health professionals' knowledge of the current physical activity recommendations; (ii) practice related to routine physical activity advising; and (iii) associated attitudes. Results: Questionnaires were returned by 757 primary care staff (response rate 54%). Confidence and enthusiasm for giving advice was generally high, but knowledge of current physical activity recommendations was low. In general, respondents indicated that they routinely discuss and advise patients about physical activity regardless of the presenting condition. Health visitors and practice nurses were more likely than general practitioners to offer routine advice. Lack of time and resources were more likely to be reported as barriers to routine advising by general practitioners than other professional groups. However, health visitors and practice nurses were also more likely than general practitioners to believe that patients would follow their physical activity advice giving. Conclusion: If primary health care staff are to be fully motivated and effective in encouraging and supporting the general population to become more physically active, policymakers and health professionals need to engage in efforts to: (1) improve knowledge of current physical activity recommendations and population trends amongst frontline primary care staff; and (2) consider the development of tools to support individual assessment and advice giving to suit individual circumstances. Despite the fact that this study found that system barriers to routine advising were less of a problem than other previous research has indicated, this issue still remains a challenge