1,720,995 research outputs found
Mortality trends during the first three waves of the covid- 19 pandemic at an urban district hospital in KwaZulu-Natal.
No full textMaster’s Degree. University of KwaZulu-Natal, Durban.Introduction Severe Acute Respiratory Syndrome Corona Virus 2 (SARS COV 2) is the virus responsible for the COVID -19 (C19) pandemic. South Africa (SA) experienced multiple periods of increased transmission during which tertiary, regional and central hospitals were overwhelmed, resulting in a low acceptance rate of referrals from district hospitals (DHs). Thus, many severely ill, complex patients were managed at DHs while awaiting an Intensive Care Unit (ICU) bed. This study aims to describe mortality trends in a comparative analysis of the first three C19 waves at Wentworth Hospital (WWH). Literature Review Known risk factors for mortality are older age; male sex; Black African, Coloured and Indian compared to white race; admission in the public sector; comorbid diseases and obesity. Waves 2 and 3 had higher mortality rates compared to wave 1. Methods The study is a single-centre retrospective analysis of WWH’s clinical records and included all patients infected with C19 (based on clinical, biochemical or radiological features suggestive of infection) who were admitted and subsequently demised in-hospital during the defined waves. Data was collected using a pre-piloted data extraction tool. Demographic and presenting features of the patients along with investigations and management strategies were compared by the primary investigator across the three waves. Results Wave one, two and three yielded case fatality rates of 14.5%, 27.6% and 6.3%, respectively, and crude fatality rates of 16.7%, 33.0% and 12.2%, respectively. Black Africans were less likely to demise during the third wave (odds ratio (OR) 0.54; 95% confidence interval (CI) 0.31 to 0.94). Obesity was most prevalent in the second wave (OR 1.87; CI 1.01 to 3.46). Patients in the second wave had clinical frailty scores of less than five (OR 2.51; CI 1.56 to 4.03). Severe ground glass appearance on chest radiographs was most common during the second wave (OR 2.37; CI 1.49 to 3.77). Conclusion The beta variant dominated the second wave and was the most virulent, as highlighted by the highest case- and crude fatality rates. This study identified the need to understand if case fatality 2 rates and mortality trends at a DH were significantly higher than those at regional or tertiary hospitals. It is hoped that this study will provide clinical and hospital managers, and provincial and national healthcare policy makers with insight into challenges faced in the health system in the public health sector and allow implementation of improved public health and planning strategies for future pandemics
A multi-dimensional incomplete stepped-wedge trial design to estimate the impact of standards-based audit.
Full text linkA clinical audit is a low-cost process used for quality improvement in healthcare. Such audits are however infrequently used in resource poor countries, where the need for and potential impact of quality improvement is higher. Sets of standards for use in maternal and newborn care have been established based on internal guidelines and evidence. The before-after design of a clinical audit is prone to bias in the estimation of the impact of conducting a clinical audit. A trial design that would provide an unbiased estimate of the impact of implementing a clinical audit process on the attainment of standards selected (a standards-based audit) was needed. The aim of this paper is to introduce and describe the design of trials we developed to meet this need. A novel randomised stepped-wedge trial design to estimate the impact of conducting standards-based audits is presented. A multi-dimensional incomplete stepped-wedge cluster randomised trial design suitable for estimation of the impact of Standards-based audits on compliance with standard is proposed; two variants are described in detail. A method for sample size estimation is described. Analyses can be performed for the binary outcome using a generalised linear mixed model framework to estimate the impact of the approach on compliance with standards subjected to a standards-based audit; additional terms to consider including in sensitivity analyses are considered. The design presented has the potential to estimate the impact of introducing the standards-based audit process on compliance with standard, while providing participating healthcare providers opportunity to gain experience of implementing the standards-based audit process. The design may be applicable in other areas in which multiple processes are to be studied
Exploring the path to optimal diabetes care by unravelling the contextual factors affecting access, utilisation, and quality of primary health care in West Africa: A scoping review protocol.
Full text linkBACKGROUND: The prevalence of diabetes in West Africa is increasing, posing a major public health threat. An estimated 24 million Africans have diabetes, with rates in West Africa around 2-6% and projected to rise 129% by 2045 according to the WHO. Over 90% of cases are Type 2 diabetes (IDF, World Bank). As diabetes is ambulatory care sensitive, good primary care is crucial to reduce complications and mortality. However, research on factors influencing diabetes primary care access, utilisation and quality in West Africa remains limited despite growing disease burden. While research has emphasised diabetes prevalence and risk factors in West Africa, there remains limited evidence on contextual influences on primary care. This scoping review aims to address these evidence gaps. METHODS AND ANALYSIS: Using the established methodology by Arksey and O'Malley, this scoping review will undergo six stages. The review will adopt the Preferred Reporting Items for Systematic Reviews and Meta-Analysis Extension for Scoping Review (PRISMA-ScR) guidelines to ensure methodological rigour. We will search four electronic databases and search through grey literature sources to thoroughly explore the topic. The identified articles will undergo thorough screening. We will collect data using a standardised data extraction form that covers study characteristics, population demographics, and study methods. The study will identify key themes and sub-themes related to primary healthcare access, utilisation, and quality. We will then analyse and summarise the data using a narrative synthesis approach. RESULTS: The findings and conclusive report will be finished and sent to a peer-reviewed publication within six months. CONCLUSION: This review protocol aims to systematically examine and assess the factors that impact the access, utilisation, and standard of primary healthcare services for diabetes in West Africa
Standards-based audit to improve quality of maternal and newborn care—A stepped-wedge cluster randomised trial in Malawi
Full text linkBackground Audit is a quality improvement approach used in maternal and newborn health. Our objective was to introduce the practice of standards-based audit at healthcare facility level, and to examine if this would improve quality of care assessed by compliance with standards developed and agreed with healthcare providers. Our focus was on emergency obstetric and newborn care (EmONC). Methods A multidimensional incomplete stepped-wedge cluster randomised trial with 8 steps was conducted in 44 healthcare facilities in Malawi. A total of 25 standards of care were developed. At each healthcare facility one (health centres) or two (hospitals) standards were audited per cycle with two consecutive audit cycles conducted. Each cycle consisted of five steps: (i) select standard to be audited, (ii) measure compliance with standard (measurement 1), (iii) review findings and identify what changes are required to increase compliance (iv) implement changes, (v) re-measure compliance (measurement 2). Each compliance measurement assessed 25 women. Multilevel mixed effects logistic regression models were used to analyse data for all standards. Results The crude overall compliance rate rose from 45% in the control phase (measurement 1) to 63% in the intervention phase (measurement 2) (from 51.6% to70.6% at Basic and from 34.5% to 50.8% at Comprehensive EmONC healthcare facilities. When adjusted for standard, facility type, month, and healthcare facility by month, the adjusted OR (95% CI) was 2.80 (1.65, 4.76). Actions taken to improve compliance with standards included improving staff performance of clinical duties and general conduct through re-orientation and staff meetings as well as improved supervision, and, ensuring basic equipment and consumables were available on site (thermometers, rapid diagnostic tests, partograph). Conclusion The introduction of standards-based audit helped healthcare providers identify problems with service provision, which when addressed, resulted in a measurable and significant improvement in quality of care
The pearls and pitfalls of setting high-quality multiple choice questions for clinical medicine
No full textMultiple choice question (MCQ) examinations have become extremely popular for testing applied knowledge in the basic and clinical sciences. When setting MCQ examinations, assessors need to understand the measures that improve validity and reliability so that the examination accurately reflects the candidate’s ability. This continuing medical education unit will cover the essentials of blueprinting an exam, constructing high-quality MCQs and post hoc vetting of the exam. It is hoped that academics involved in assessments use the content provided to improve their skills in setting high-quality MCQs
Blockchain technology and the centralised interbank payment system in South Africa
No full textMBATechnological innovation in the financial industry has evolved immensely over the past decade. The innovation in the payment space has grown leaps and bounds with online and mobile payments. The South African Multiple Option Settlement System (SAMOS) which is a subset of the general ledger of the South African Reserve Bank (SARB), is the solitary settlement system in South Africa and is owned and operated by the SARB since 1998. Under the National Payment System (NPS) Act, any entries passed are final and irrevocable. The messages of SAMOS are based on the standards and message types of the Society for Worldwide Interbank Financial Telecommunication (SWIFT) (CPSS, 2012).
Recent technological innovation in Blockchain which is a type of Distributed Ledger Technology (DLT) based system has assured enhancement in payment systems without the need for extensive networks and centralised administrators. DLT enables the direct exchange of tokens of value and allows real-time messaging and clearing within a cryptographically secure and resilient environment (Patel, 2017). There are numerous Central Banks around the world that have or are developing prototypes for their domestic interbank settlement systems using DLT. The first phases of the projects were proof of concepts that explored opportunities for DLT to improve the existing payments systems or Real-time Gross Settlement Systems (RTGS) infrastructure (Zhao, Zhang, Rutter, Thompson and Wan, 2018). Many Central Banks that have completed proof of concepts have documented that that their projects were successful.
The aim of this research was to identify the perceived obstacles to the adoption of Blockchain technology for interbank payments in South Africa as numerous successful proofs of concept projects have been concluded by various Central Banks globally including South Africa.
A qualitative research paradigm was used for this research and semi- structured interviews were conducted to collect data. The process of purposive sampling of
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non-probability sampling method was applied. This allowed the researcher to use his experience and ingenuity to deliberately select the participants in a manner that the sample was regarded as being representative of the relevant population. The data collected was analysed and interpreted through thematic analysis.
The data analysis revealed that Blockchain technology can work for interbank payments in South Africa however the biggest obstacles are the negative perception around Blockchain technology due to the volatility of Bitcoin cryptocurrency, the central authority fear of losing control, the lack of a compelling business case, business continuity risk, challenges in terms of the interoperability of Blockchain based DLT systems with Banking legacy systems, the cost benefit of a Blockchain based DLT system and the lack of technology maturity and skills in South Africa.
The Central Banks globally together with the Bank of International Settlements should meet to compile a payments systems business case. Technologist must be excluded from this meeting. The business case must be based on the requirements and need for a Blockchain based DLT payment system. The Principles for Financial Market Infrastructures (PFMIs) should be the one of the main focus areas as it helps to adopt the appropriate platform for a Blockchain based DLT system. Once a compelling business case is derived, the South African Central Bank should organise a meeting with the South African financial services industry to discuss the Governance and Regulation of a Blockchain based DLT system.MK202
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
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