67 research outputs found

    Measuring health-related quality of life of older people with frailty receiving acute care: feasibility and psychometric performance of the EuroQol EQ-5D

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    Background Although outcome goals for acute healthcare among older people living with frailty often include Health-Related Quality of Life (HRQoL) and other patient-reported outcome measures (PROMs), current quality metrics usually focus on waiting times and survival. Lay and patient review have identified the EuroQol EQ-5D as a candidate measure for this setting. This research appraised the EQ-5D for feasibility, psychometric performance, and respondents’ outcomes in the acute frailty setting. Methods People aged 65 + with Clinical Frailty Scale (CFS) 5–8 were recruited from eight UK hospitals’ emergency care and acute admissions settings. They completed the five-level EQ-5D and the EQ-VAS. Feasibility was assessed with completion times and completeness. For reliability, response distributions and internal consistency were analysed. Finally, EQ-Index values were compared with demographic characteristics and service outcomes for construct validity. Results The 232 participants were aged 65–102. 38% responded in emergency departments and 62% in admissions wards. Median completion time was 12 (IQR, 11) minutes. 98% responses were complete. EQ-5D had acceptable response distribution (SD 1.1–1.3) and internal consistency (Cronbach’s alpha 0.69). EQ-VAS demonstrated a midpoint response pattern. Median EQ-Index was 0.574 (IQR, 0.410) and was related positively with increasing age (p = 0.010) and negatively with CFS (p < 0.001). Participants with higher CFS had more frequent problems with mobility, self-care, and usual activities. Conclusions Administration of the EQ-5D was feasible in these emergency and acute frailty care settings. EQ-5D had acceptable properties, while EQ-VAS appeared problematic. Participants with more severe frailty had also poorer HRQoL

    Healthcare stakeholders’ perceptions and experiences of factors affecting the implementation of critical care telemedicine (CCT): qualitative evidence synthesis

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    This is the published version of the following article: Xyrichis A, Mackintosh NJ, Terblanche M, Bench S, Philippou J, Sandall J. Healthcare stakeholders’ perceptions and experiences of factors affecting the implementation of critical care telemedicine (CCT): qualitative evidence synthesis. Cochrane Database of Systematic Reviews 2017, Issue 11. Art. No.: CD012876. which has been published at 10.1002/14651858.CD012876 © 2017 The Cochrane Collaboration. Published by John Wiley & Sons, Ltd. This is a protocol for a Cochrane Review (Qualitative). The objectives are as follows: To identify, appraise and synthesise qualitative research evidence on healthcare stakeholders' perceptions and experiences of factors affecting the implementation of CCT. To identify hypotheses, for subsequent consideration and assessment in effectiveness reviews, about factors that are more likely to ensure successful implementation of CCT

    Associations and propositions: the case for a dual-process account of learning in humans

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    Copyright © 2013 Elsevier. NOTICE: This is the author’s version of a work accepted for publication by Elsevier. Changes resulting from the publishing process, including peer review, editing, corrections, structural formatting and other quality control mechanisms, may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Neurobiology of Learning and Memory, 2014, vol. 108, pp. 185 – 195 DOI: 10.1016/j.nlm.2013.09.014We review evidence that supports the conclusion that people can and do learn in two distinct ways - one associative, the other propositional. No one disputes that we solve problems by testing hypotheses and inducing underlying rules, so the issue amounts to deciding whether there is evidence that we (and other animals) also rely on a simpler, associative system, that detects the frequency of occurrence of different events in our environment and the contingencies between them. There is neuroscientific evidence that associative learning occurs in at least some animals (e.g., Aplysia californica), so it must be the case that associative learning has evolved. Since both associative and propositional theories can in principle account for many instances of successful learning, the problem is then to show that there are at least some cases where the two classes of theory predict different outcomes. We offer a demonstration of cue competition effects in humans under incidental conditions as evidence against the argument that all such effects are based on cognitive inference. The latter supposition would imply that if the necessary information is unavailable to inference then no cue competition should occur. We then discuss the case of unblocking by reinforcer omission, where associative theory predicts an irrational solution to the problem, and consider the phenomenon of the Perruchet effect, in which conscious expectancy and conditioned response dissociate. Further discussion makes use of evidence that people will sometimes provide one solution to a problem when it is presented to them in summary form, and another when they are presented in rapid succession with trial-by trial information. We also demonstrate that people trained on a discrimination may show a peak shift (predicted by associative theory), but given the time and opportunity to detect the relationships between S+ and S-, show rule-based behavior instead. Finally, we conclude by presenting evidence that research on individual differences suggests that variation in intelligence and explicit problem solving ability are quite unrelated to variation in implicit (associative) learning, and briefly consider the computational implications of our argument, by asking how both associative and propositional processes can be accommodated within a single framework for cognition.ESR

    Comprehensive analysis of epigenetic clocks reveals associations between disproportionate biological ageing and hippocampal volume

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    The concept of age acceleration, the difference between biological age and chronological age, is of growing interest, particularly with respect to age-related disorders, such as Alzheimer’s Disease (AD). Whilst studies have reported associations with AD risk and related phenotypes, there remains a lack of consensus on these associations. Here we aimed to comprehensively investigate the relationship between five recognised measures of age acceleration, based on DNA methylation patterns (DNAm age), and cross-sectional and longitudinal cognition and AD-related neuroimaging phenotypes (volumetric MRI and Amyloid-β PET) in the Australian Imaging, Biomarkers and Lifestyle (AIBL) and the Alzheimer’s Disease Neuroimaging Initiative (ADNI). Significant associations were observed between age acceleration using the Hannum epigenetic clock and cross-sectional hippocampal volume in AIBL and replicated in ADNI. In AIBL, several other findings were observed cross-sectionally, including a significant association between hippocampal volume and the Hannum and Phenoage epigenetic clocks. Further, significant associations were also observed between hippocampal volume and the Zhang and Phenoage epigenetic clocks within Amyloid-β positive individuals. However, these were not validated within the ADNI cohort. No associations between age acceleration and other Alzheimer’s disease-related phenotypes, including measures of cognition or brain Amyloid-β burden, were observed, and there was no association with longitudinal change in any phenotype. This study presents a link between age acceleration, as determined using DNA methylation, and hippocampal volume that was statistically significant across two highly characterised cohorts. The results presented in this study contribute to a growing literature that supports the role of epigenetic modifications in ageing and AD-related phenotypes

    Conditionong and associative learning

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    316 p.; 21 cm

    The experience of acupuncture care from the perspective of people with chronic low back pain: A grounded theory study

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    Objectives To explore the experience of acupuncture care from the perspective of people with chronic low back pain. Methods A grounded theory, qualitative study using indepth interviews was undertaken with 11 people who had received acupuncture care for chronic low back pain. Interviews were audio-recorded and transcribed verbatim. Initial, focused and theoretical coding were used to identify a core category and several other categories. Results The core category, Reclaiming Control, was related to the sense of well-being experienced by most of the participants as a result of undergoing acupuncture care. The other categories were Gaining Sanctuary, Gaining Trust and Working Together. These categories reflected the processes of participants entering an aesthetically appealing, calm and relaxing space; developing confidence in the acupuncturists’ ability to care for them; and negotiating strategies and sharing decision-making with acupuncturists about their care. Conclusions Clinicians using acupuncture as a management strategy for low back pain may elicit an immediate sense of calmness in patients with subsequent well-being benefits. A sense of calmness may also be enhanced through providing a relaxing physical environment. The transactional and interpersonal processes of establishing trust and rapport, and shared decision-making are important for clients. Shared decision-making can be improved by clinicians carefully considering the explanation of issues and plans to a particular patient, especially by developing an understanding of each patient’s worldview and using language that the suits each individual’s healthcare orientation. Our findings should be interpreted cautiously as the results may be generalisable only to private practice in affluent countries, and whether the findings are representative beyond this setting remains unclear

    Patient Self-report measures of chronic pain consultation measures: A systematic review

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    Background: Earlier studies have associated improvements in chronic pain outcomes with various consultation attributes, including: the legitimization of people's chronic pain experience, affective components of the therapeutic relationship, and reaching decisions about people's care through collaboration. Although studies have used patient self-report measures to examine how certain aspects of consultations contribute to managing chronic pain. The psychometric quality of these measures seems to have not been independently appraised to date. Objectives: This review aimed to evaluate the psychometric properties and administrative feasibility of published patient self-report consultation measures that were validated for people with chronic pain. Methods: Databases were searched to identify patient self-report consultation measures validated in chronic pain populations. Explicit review criteria for 8 measure attributes were developed for this review by synthesizing information from available guidelines. In total, 58 potentially relevant consultation measures were identified. Of these, 4 measures satisfied the inclusion/exclusion criteria and were critically appraised by 2 independent reviewers. Overall, the psychometric quality of the included measures was modest, particularly in terms of evidence for content validity, test-retest reliability, responsiveness, and interpretability. Discussion: Each of the included measures assessed differing aspects of consultations, and their potential clinical and research uses are discussed. Recommendations are made to improve the psychometric quality of the included measures. In summary, more psychometric research needs to be undertaken to improve the existing measures' quality and broaden the scope of chronic pain consultation measures before studies may be conducted to develop a comprehensive understanding of the manner in which consultation attributes influence chronic pain outcomes

    Acupuncturists’ perspectives on outcome measures to evaluate acupuncture care for chronic low back pain

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    To examine Australian acupuncturists’ perspectives of: chronic low back pain outcome domains; their use of outcome measures to assess chronic low back pain; and their attitudes and perceptions of barriers to using the existing measures to evaluate acupuncture care for chronic low back pain
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