1,097 research outputs found

    FORMULARY MODEL FOR ACCESS CONTROL AND PRIVACY IN COMPUTER SYSTEMS.

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    Predicting dementia diagnosis from cognitive footprints in electronic health records: a case-control study protocol

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    INTRODUCTION: Dementia is a group of disabling disorders that can be devastating for persons living with it and for their families. Data-informed decision-making strategies to identify individuals at high risk of dementia are essential to facilitate large-scale prevention and early intervention. This population-based case-control study aims to develop and validate a clinical algorithm for predicting dementia diagnosis, based on the cognitive footprint in personal and medical history. METHODS AND ANALYSIS: We will use territory-wide electronic health records from the Clinical Data Analysis and Reporting System (CDARS) in Hong Kong between 1 January 2001 and 31 December 2018. All individuals who were at least 65 years old by the end of 2018 will be identified from CDARS. A random sample of control individuals who did not receive any diagnosis of dementia will be matched with those who did receive such a diagnosis by age, gender and index date with 1:1 ratio. Exposure to potential protective/risk factors will be included in both conventional logistic regression and machine-learning models. Established risk factors of interest will include diabetes mellitus, midlife hypertension, midlife obesity, depression, head injuries and low education. Exploratory risk factors will include vascular disease, infectious disease and medication. The prediction accuracy of several state-of-the-art machine-learning algorithms will be compared. ETHICS AND DISSEMINATION: This study was approved by Institutional Review Board of The University of Hong Kong/Hospital Authority Hong Kong West Cluster (UW 18-225). Patients' records are anonymised to protect privacy. Study results will be disseminated through peer-reviewed publications. Codes of the resulted dementia risk prediction algorithm will be made publicly available at the website of the Tools to Inform Policy: Chinese Communities' Action in Response to Dementia project (https://www.tip-card.hku.hk/)

    Utopian Visions toward a Grand Unified Global Income Tax

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    Over the past several decades, many countries that historically relied on progressive taxes on income, wealth, and decedents’ estates for much governmental revenue have shifted to less progressive and regressive taxes on labor and consumption. Reasons for the shift are many but include international tax competition as world economies have become increasing global. This paper assumes that progressive taxes remain the best and fairest choice for providing governmental revenue, so that a fundamental change in the scope of the progressive income tax is essential to protect progressivity. The paper argues that the rapid growth of international cooperation on economic and tax matters makes a shift to a unified global income tax possible. A GUGIT would make far better sense than separate national income taxes. The paper goes on to describe a vision of a GUGIT with a global taxing authority and a uniform tax base. For business entities, the GUGIT would apportion the uniform tax base among countries in which a taxpayer is active based upon a four factor formula that includes sales, property but not intangible property with respect to which physical location has little meaning, labor based upon adjusted payroll that eliminates the distortions of wage differentials or upon person hours, and beneficial ownership. The GUGIT would include a robust related taxpayer definition in order to prevent taxpayers from artificially shifting income to countries that choose to impose lower rates of tax on their shares of the uniform base through transfer pricing and similar devices. At individual level, the GUGIT would allocate income to the jurisdiction into which the taxpayer intends his or her services to have their impact or upon relative periods of residence during the year. Either method diminishes the benefit of expatriation to avoid taxes but a continuation tax or exit tax may remain necessary to combat tax expatriation

    Heart Failure Monitoring System Based on Wearable and Information Technologies

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    In Europe, Cardiovascular Diseases (CVD) are the leading source of death, causing 45% of all deceases. Besides, Heart Failure, the paradigm of CVD, mainly affects people older than 65. In the current aging society, the European MyHeart Project was created, whose mission is to empower citizens to fight CVD by leading a preventive lifestyle and being able to be diagnosed at an early stage. This paper presents the development of a Heart Failure Management System, based on daily monitoring of Vital Body Signals, with wearable and mobile technologies, for the continuous assessment of this chronic disease. The System makes use of the latest technologies for monitoring heart condition, both with wearable garments (e.g. for measuring ECG and Respiration); and portable devices (such as Weight Scale and Blood Pressure Cuff) both with Bluetooth capabilitie

    Utopian Visions Toward a Grand Unified Global Income Tax

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    Introduction of new medicines in Sweden

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    Payers and providers face challenges in enabling appropriate and sustainable access to new medicines. To help enable rational use of new medicines various policy options exist. In Sweden, horizon scanning, forecasting, value-based pricing and reimbursement, treatment recommendations, and assessment of drug utilization patterns and patient outcomes in routine clinical practice have been used to facilitate rational introduction of new medicines. Such activities, however, should be informed by research and be subject to continuous evaluation. This thesis aims to examine selected elements of the process for managed introduction of new medicines. Study I provides an evaluation of the Swedish Horizon Scanning System. Study II assesses the impact of treatment recommendations on the use of new medicines in the specialized care setting. Finally, studies III and IV explore the utility of healthcare databases in the assessment of real-world use and outcomes of two specialist medicines prioritized for managed introduction. Different types of data were used in these studies, including public assessment reports published by the European Medicines Agency, early assessment reports prepared by the Swedish Horizon Scanning System, national sales data on all inpatient and outpatient medicines, regional administrative healthcare services data, and national registers of Statistics Sweden and the National Board of Health and Welfare. The evaluation of the Swedish Horizon Scanning System demonstrates that all innovative medicines that had substantial economic impact were identified and assessed prior to their introduction. The assessment of the impact of treatment recommendations shows that both local and regional treatment recommendations were associated with changes in the use of new medicines. Both regional and national healthcare databases provide the opportunity to study the use and outcomes of new medicines in routine clinical practice. The findings indicate that healthcare decision makers can rely on the outputs of the Swedish Horizon Scanning System to keep informed of new medicines. Moreover, treatment recommendations appear to influence the uptake and utilization of new specialist medicines. Finally, even though the existing Swedish data sources provide unique research opportunities, the assessment of appropriate use and relevant outcomes of the growing number of new specialist medicines may still be impeded by a lack of fit-for-purpose data
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