335 research outputs found

    Creating Traditional Regalia: My Journey to a Master’s Degree

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    Utilisation of 3D body scanning technology as a research tool when establishing adequate bra fit

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    Aims Profile the relationship and differences in bust size, position and shape in a sample of UK bra consumers using 3D anthropometric body scan data. Evaluate the presentation of bra sizing by retailers and identify areas of miss communication to characterize effective application to the bra market. Collate and validate criteria for achieving adequate bra fit and quantify the physical impact on the bust size, shape and position. Methods Three quantitative methods were applied rich data to achieve the research aims. Profiling the variation in bust size shape and positioning within a bank of 3D Body scanning data into Bust height, Breast size, Bust Spread, Breast Drop and Breast Symmetry using the 30th and 70th percentiles as category dividers. Evaluating variation found in bra sizing and fit information provided by retailers and the deviation from the British Standard guidelines and Laboratory fit trials to assess the application of retailer bra fit criteria with grades in four categories; Underband, Cup Volume, Underwire and Bra Strap to a sample of UK bra consumers. Findings The findings from this research indicate potential for 3D Body Scanning Technology as a tool to quantify the relationships and differences in five bust characteristics. The technology is applicable in profiling the relationship between the bust and the body. The research presents a new method for measuring breast size which accounts for the prominence independently from the circumferential measurements. . Variation is found among retailers and researchers in bra sizing strategies in the baseline for the size range and the inclusion or exclusion of ‘FF’ causes greater variance above an F cup. The application of a bra fit criteria has a medium to large statistically significant impact reducing the areas where the fit is too big or small and increasing the cases where the bra fit is adequate. Post Hoc analysis revealed a medium to large negative affect on the bra fit small and bra fit too big classifications and a large positive effect on the bra fit adequate score when tested. Underband category findings are consistent with current research which suggests consumers are more likely to wear a bra which is too big in the underband. Recommendations The research built on previous findings while identifying gaps in the field of research. Further research is recommended into the variation in bra sizing which has been highlighted by this research. A recommendation is to link bra pattern cutting and grading to bra size communication to customers. This is seen as key to reducing communication of sizing to the consumer. Current bra fit advise is inadequate in assisting the consumer in selecting adequate support from a bra. Professional fitting is recommended to support this. A key recommendation from this work is that future Bra fit criteria applied to research should include a Bra cup neck edge category. Bra styling should also be considered as the correct size is not sufficient to achieve adequate fit

    Feasibility study of early outpatient review and early cardiac rehabilitation after cardiac surgery: mixed-methods research design-a study protocol.

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    INTRODUCTION: Following cardiac surgery, patients currently attend an outpatient review 6 weeks after hospital discharge, where recovery is assessed and suitability to commence cardiac rehabilitation (CR) is determined. CR is then started from 8 weeks. Following a median sternotomy, cardiac surgery patients are required to refrain from upper body exercises, lifting of heavy objects and other strenuous activities for 12 weeks. A delay in starting CR can prolong the recovery process, increase dependence on family/carers and can cause frustration. However, current guidelines for activity and exercise after median sternotomy have been described as restrictive, anecdotal and increasingly at odds with modern clinical guidance for CR. This study aims to examine the feasibility of bringing forward outpatient review and starting CR earlier. METHODS AND ANALYSES: This is a multicentre, randomised controlled, open feasibility trial comparing postoperative outpatient review 6 weeks after hospital discharge, followed by CR commencement from 8 weeks (control arm) versus, postoperative outpatient review 3 weeks after hospital discharge, followed by commencement of CR from 4 weeks (intervention arm). The study aims to recruit 100 eligible patients, aged 18-80 years who have undergone elective or urgent cardiac surgery involving a full median sternotomy, over a 7-month period across two centres. Feasibility will be measured by consent, recruitment, retention rates and attendance at appointments and CR sessions. Qualitative interviews with trial participants and staff will explore issues around study processes and acceptability of the intervention and the findings integrated with the feasibility trial outcomes to inform the design of a future full-scale randomised controlled trial. ETHICS AND DISSEMINATION: Ethics approval was granted by East Midlands-Derby Research Ethics Committee on 10 January 2019. The findings will be presented at relevant conferences disseminated via peer-reviewed research publications, and to relevant stakeholders. TRIAL REGISTRATION NUMBER: ISRCTN80441309

    Evidence-based sizing of non-inferiority trials using decision models

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    Abstract Background There are significant challenges to the successful conduct of non-inferiority trials because they require large numbers to demonstrate that an alternative intervention is “not too much worse” than the standard. In this paper, we present a novel strategy for designing non-inferiority trials using an approach for determining the appropriate non-inferiority margin (ή), which explicitly balances the benefits of interventions in the two arms of the study (e.g. lower recurrence rate or better survival) with the burden of interventions (e.g. toxicity, pain), and early and late-term morbidity. Methods We use a decision analytic approach to simulate a trial using a fixed value for the trial outcome of interest (e.g. cancer incidence or recurrence) under the standard intervention (pS) and systematically varying the incidence of the outcome in the alternative intervention (pA). The non-inferiority margin, pA – pS = ή, is reached when the lower event rate of the standard therapy counterbalances the higher event rate but improved morbidity burden of the alternative. We consider the appropriate non-inferiority margin as the tipping point at which the quality-adjusted life-years saved in the two arms are equal. Results Using the European Polyp Surveillance non-inferiority trial as an example, our decision analytic approach suggests an appropriate non-inferiority margin, defined here as the difference between the two study arms in the 10-year risk of being diagnosed with colorectal cancer, of 0.42% rather than the 0.50% used to design the trial. The size of the non-inferiority margin was smaller for higher assumed burden of colonoscopies. Conclusions The example demonstrates that applying our proposed method appears feasible in real-world settings and offers the benefits of more explicit and rigorous quantification of the various considerations relevant for determining a non-inferiority margin and associated trial sample size.https://deepblue.lib.umich.edu/bitstream/2027.42/146777/1/12874_2018_Article_643.pd

    Pragmatic cluster randomised controlled trial of contextualised grammar teaching and small group teaching to improve the writing skills of 11 year old children

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    Introduction: We evaluated two interventions: a contextualised grammar teaching intervention – Grammar for Writing - to assess whether it improved 11 year old children’s writing skills; and a small group literacy intervention to assess whether or not this was effective. Design and method: We used a pragmatic cluster randomised trial with partial split plot design. Independent concealed randomisation was undertaken at the class level, and, within the intervention group, children were also individually randomised to receive the whole class intervention plus a small group intervention or to receive the intervention in a whole class setting only. The main outcomes were writing and reading assessed by the Progress in English 11 (Long Form) test (GL Assessment). Results: In 2013, 55 schools in England, each with two classes, were recruited and randomised. Within each school, the two classes were randomly allocated to receive either the intervention or the control condition. After randomisation, 2 schools withdrew, leaving 53 schools, 106 classes and 2510 pupils. We observed an effect size (ES) of 0.10 favouring the Grammar for Writing classes; however, this was not statistically significant (95% confidence interval (CI) -0.10 to 0.31). Pupils randomised to the small groups had an increased literacy score when compared with the control classes (ES = 0.24, 95% CI 0.00 to 0.49) and when compared with the intervention children taught in the whole class (ES = 0.21, 95% CI 0.04 to 0.38). Conclusion: There is little evidence that this form of contextualised grammar teaching had an effect on 11 year old children’s writing skills. There was some evidence of an effect for small group teaching

    Exploring Engagement with Authors of Randomised Controlled Trials to Develop Recommendations to Improve Allocation Concealment Implementation and Reporting

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    Background: Reviews have consistently shown that allocation concealment is frequently implemented and reported suboptimally in randomised controlled trials (RCTs). This research aims to pilot engaging with authors of RCTs to explore their knowledge and understanding of allocation concealment implementation and reporting to ascertain areas and mechanisms for their improvement. Methods: Authors that published RCTs in core clinical journals in one month in 2019 were identified. Authors were invited to complete questionnaires to elicit their views and experiences on the implementation and reporting quality focussing on allocation concealment. Methodological quality of allocation concealment was evaluated in this sample by assessing adherence to the Consolidated Standards of Reporting Trials (CONSORT). Results: Reporting was suboptimal, with only 57% of allocation concealment methods reported to be implemented which were judged as adequate, with 18% using sealed envelopes and more than 40% not adequately reporting allocation methods. When exploring allocation concealment, implementation and reporting questionnaires were found to elicit a low response rate amongst authors of RCTs. Discussion: Following analysis of the themes that emerged from the questionnaires, the main recommendations to improve reporting quality are: journals need to endorse, adhere and promote reporting guidelines, a methodologist could review methodological details of publications simultaneously to peer review, envelopes as a form of allocation concealment are poorly implemented and reported, so careful review of these is required, funders need to insist on more robust allocation concealment methods are employed if the RCT setting allows, and authors need to acknowledge their responsibility for transparent reporting of RCTs

    Emergency ambulance service involvement with residential care homes in the support of older people with dementia : an observational study

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    © 2014 Amador et al.; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.BACKGROUND: Older people resident in care homes have a limited life expectancy and approximately two-thirds have limited mental capacity. Despite initiatives to reduce unplanned hospital admissions for this population, little is known about the involvement of emergency services in supporting residents in these settings.METHODS: This paper reports on a longitudinal study that tracked the involvement of emergency ambulance personnel in the support of older people with dementia, resident in care homes with no on-site nursing providing personal care only. 133 residents with dementia across 6 care homes in the East of England were tracked for a year. The paper examines the frequency and reasons for emergency ambulance call-outs, outcomes and factors associated with emergency ambulance service use. RESULTS: 56% of residents used ambulance services. Less than half (43%) of all call-outs resulted in an unscheduled admission to hospital. In addition to trauma following a following a fall in the home, results suggest that at least a reasonable proportion of ambulance contacts are for ambulatory care sensitive conditions. An emergency ambulance is not likely to be called for older rather than younger residents or for women more than men. Length of residence does not influence use of emergency ambulance services among older people with dementia. Contact with primary care services and admission route into the care home were both significantly associated with emergency ambulance service use. The odds of using emergency ambulance services for residents admitted from a relative's home were 90% lower than the odds of using emergency ambulance services for residents admitted from their own home. CONCLUSIONS: Emergency service involvement with this vulnerable population merits further examination. Future research on emergency ambulance service use by older people with dementia in care homes, should account for important contextual factors, namely, presence or absence of on-site nursing, GP involvement, and access to residents' family, alongside resident health characteristics.Peer reviewedFinal Published versio
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