Browsing by Author "Young, Taryn"
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- ItemAnalytical methods used in estimating the prevalence of HIV/AIDS from demographic and cross-sectional surveys with missing data : a systematic review(BMC (part of Springer Nature), 2020-03-14) Mosha, Neema R.; Aluko, Omololu S.; Todd, Jim; Machekano, Rhoderick; Young, TarynBackground: Sero- prevalence studies often have a problem of missing data. Few studies report the proportion of missing data and even fewer describe the methods used to adjust the results for missing data. The objective of this review was to determine the analytical methods used for analysis in HIV surveys with missing data. Methods: We searched for population, demographic and cross-sectional surveys of HIV published from January 2000 to April 2018 in Pub Med/Medline, Web of Science core collection, Latin American and Caribbean Sciences Literature, Africa-Wide Information and Scopus, and by reviewing references of included articles. All potential abstracts were imported into Covidence and abstracts screened by two independent reviewers using pre-specified criteria. Disagreements were resolved through discussion. A piloted data extraction tool was used to extract data and assess the risk of bias of the eligible studies. Data were analysed through a quantitative approach; variables were presented and summarised using figures and tables. Results: A total of 3426 citations where identified, 194 duplicates removed, 3232 screened and 69 full articles were obtained. Twenty-four studies were included. The response rate for an HIV test of the included studies ranged from 32 to 96% with the major reason for the missing data being refusal to consent for an HIV test. Complete case analysis was the primary method of analysis used, multiple imputations 11(46%) was the most advanced method used, followed by the Heckman’s selection model 9(38%). Single Imputation and Instrumental variables method were used in only two studies each, with 13(54%) other different methods used in several studies. Forty-two percent of the studies applied more than two methods in the analysis, with a maximum of 4 methods per study. Only 6(25%) studies conducted a sensitivity analysis, while 11(46%) studies had a significant change of estimates after adjusting for missing data. Conclusion: Missing data in survey studies is still a problem in disease estimation. Our review outlined a number of methods that can be used to adjust for missing data on HIV studies; however, more information and awareness are needed to allow informed choices on which method to be applied for the estimates to be more reliable and representative.
- ItemApplication of evidence on probiotics, prebiotics and synbiotics by food industry : a descriptive study(London : Biomed Central, 2014-10) Mugambi, Mary N.; Young, Taryn; Blaauw, Renee; Faculty of Medicine and Health Sciences. Dept. of Interdisciplinary Health Sciences. Human Nutrition.ENGLISH ABSTRACT: This study assessed how the food industry applies the knowledge and evidence gained from synbiotics, probiotics or prebiotics research in infants, on the general paediatric population. This study also explored: what happens after the clinical trials using infant formula are completed, data is published or remains unpublished; the effectiveness and type of medium the formula manufacturers use to educate consumers on probiotic, prebiotic or synbiotic infant formula. Findings: This was a descriptive study (a survey) that used a structured questionnaire. All listed companies that manufacture and / or market food products with added probiotics, prebiotics or synbiotics for infants were identified and invited to participate. People responsible for research and development were invited to participate in the survey. A letter of invitation was sent to selected participants and if they expressed willingness to take part in the study, a questionnaire with a written consent form was sent. Descriptive statistics and associations between categorical variables were to be tested using a Chi-square test, a p < 0.05 was statistically significant. A total of 25 major infant formulas, baby food manufacturers were identified, invited to participate in the survey. No company was willing to participate in the survey for different reasons: failure to take any action 5 (20%), decision to participate indefinitely delayed 2 (8%), sensitivity of requested information 3 (12%), company does not conduct clinical trials 1 (4%), company declined without further information 4 (16%), erroneous contact information 6 (24%), refusal by receptionists to forward telephone calls to appropriate staff 3 (12%), language barrier 3 (12%), company no longer agrees to market research 1 (4%). Conclusion: Due to a poor response rate in this study, no conclusion could be drawn on how the food industry applies evidence gained through probiotics, prebiotics or synbiotics research on infants for the benefit of the general paediatric population. More information and greater transparency is needed from the infant formula manufacturers on how they apply the evidence gained from the research on probiotics, prebiotics and synbiotics on infants
- ItemAn approach for setting evidence-based and stakeholder-informed research priorities in low- and middle-income countries(World Health Organization, 2016) Rehfuess, Eva A.; Durao, Solange; Kyamanywa, Patrick; Meerpohl, Joerg J.; Young, Taryn; Rohwer, Anke; The Collaboration for Evidence-Based Healthcare and Public Health in Africa (CEBHA+)ENGLISH SUMMARY : To derive evidence-based and stakeholder-informed research priorities for implementation in African settings, the international research consortium Collaboration for Evidence-Based Healthcare and Public Health in Africa (CEBHA+) developed and applied a pragmatic approach. First, an online survey and face-to-face consultation between CEBHA+ partners and policy-makers generated priority research areas. Second, evidence maps for these priority research areas identified gaps and related priority research questions. Finally, study protocols were developed for inclusion within a grant proposal. Policy and practice representatives were involved throughout the process. Tuberculosis, diabetes, hypertension and road traffic injuries were selected as priority research areas. Evidence maps covered screening and models of care for diabetes and hypertension, population-level prevention of diabetes and hypertension and their risk factors, and prevention and management of road traffic injuries. Analysis of these maps yielded three priority research questions on hypertension and diabetes and one on road traffic injuries. The four resulting study protocols employ a broad range of primary and secondary research methods; a fifth promotes an integrated methodological approach across all research activities. The CEBHA+ approach, in particular evidence mapping, helped to formulate research questions and study protocols that would be owned by African partners, fill gaps in the evidence base, address policy and practice needs and be feasible given the existing research infrastructure and expertise. The consortium believes that the continuous involvement of decision-makers throughout the research process is an important means of ensuring that studies are relevant to the African context and that findings are rapidly implemented.
- ItemAuthorship, plagiarism and conflict of interest : views and practices from low/ middle-income country health researchers(BMJ Publishing Group, 2017-11) Rohwer, Anke; Young, Taryn; Wager, Elizabeth; Garner, PaulObjectives To document low/middle-income country (LMIC) health researchers’ views about authorship, redundant publication, plagiarism and conflicts of interest and how common poor practice was in their institutions. Design We developed a questionnaire based on scenarios about authorship, redundant publication, plagiarism and conflicts of interest. We asked participants whether the described practices were acceptable and whether these behaviours were common at their institutions. We conducted in-depth interviews with respondents who agreed to be interviewed. Participants We invited 607 corresponding authors of Cochrane reviews working in LMICs. From the 583 emails delivered, we obtained 199 responses (34%). We carried out in-depth interviews with 15 respondents. Results Seventy-seven per cent reported that guest authorship occurred at their institution, 60% reported text recycling. For plagiarism, 12% of respondents reported that this occurred ‘occasionally’, and 24% ‘rarely’. Forty per cent indicated that their colleagues had not declared conflicts of interest in the past. Respondents generally recognised poor practice in scenarios but reported that they occurred at their institutions. Themes identified from in-depth interviews were (1) authorship rules are simple in theory, but not consistently applied; (2) academic status and power underpin behaviours; (3) institutions and culture fuel bad practices and (4) researchers are uncertain about what conflict of interests means and how this may influence research. Conclusions LMIC researchers report that guest authorship is widely accepted and common. While respondents report that plagiarism and undeclared conflicts of interest are unacceptable in practice, they appear common. Determinants of poor practice relate to academic status and power, fuelled by institutional norms and culture.
- ItemBuilding capacity in clinical epidemiology in Africa : experiences from Masters programmes(BioMed Central, 2017-02-27) Young, Taryn; Naude, Celeste; Brodovcky, Tania; Esterhuizen, TonyaENGLISH SUMMARY : Background: To describe and contrast programmatic offering of Clinical Epidemiology Masters programmes in Africa, to evaluate experiences of graduates and faculty, and assess if graduates are playing roles in research, practice and teaching of Clinical Epidemiology. Methods: We searched and identified relevant programmes, reviewed programmatic documentation, interviewed convenors and surveyed graduates. Participants provided informed consent, interviews with faculty were recorded and transcribed for analysis purposes, and graduates participated in an online survey. Results: Five structured Masters programmes requiring health science professionals to complete modules and research projects were assessed. Demand for programmes was high. Graduates enjoyed the variety of modules, preferred blended teaching, and regarded assessments as fair. Graduates felt that career paths were not obvious after graduating. Despite this, some have gone on to promote and teach evidence-based health care, and conduct and disseminate research. Areas of concern raised by faculty were quality assurance; research project initiation, implementation and supervisory capacity; staff availability; funding to support implementation and lack of experiential learning. Conclusion: Although faced with challenges, these programmes build capacity of health professionals to practice in an evidence-informed way, and conduct rigorous research, which are central to advancing the practice of Clinical Epidemiology in Africa.
- ItemThe Cochrane Corner in the SAMJ : summaries of Cochrane systematic reviews for evidence-informed practice(Health and Medical Publishing Group, 2015) Kredo, Tamara; Young, Taryn; Wiysonge, Charles S.; McCaul, Michael; Volmink, JamesThis editorial introduces a regular contribution from Cochrane South Africa (http://www.mrc.ac.za/cochrane/cochrane.htm) to the South African Medical Journal, which will be called the ‘Cochrane Corner’. Our contribution takes the form of technical summaries of Cochrane systematic reviews handpicked for their relevance to South Africa and the African region. Our goal is to help ensure that the high-quality evidence in Cochrane reviews reaches a wider audience.
- ItemDecentralised training for medical students : a scoping review(BioMed Central, 2017-11-09) De Villiers, Marietjie; Van Schalkwyk, Susan; Blitz, Julia; Couper, Ian; Moodley, Kalavani; Talib, Zohray; Young, TarynBackground: Increasingly, medical students are trained at sites away from the tertiary academic health centre. A growing body of literature identifies the benefits of decentralised clinical training for students, the health services and the community. A scoping review was done to identify approaches to decentralised training, how these have been implemented and what the outcomes of these approaches have been in an effort to provide a knowledge base towards developing a model for decentralised training for undergraduate medical students in lower and middle-income countries (LMICs). Methods: Using a comprehensive search strategy, the following databases were searched, namely EBSCO Host, ERIC, HRH Global Resources, Index Medicus, MEDLINE and WHO Repository, generating 3383 references. The review team identified 288 key additional records from other sources. Using prespecified eligibility criteria, the publications were screened through several rounds. Variables for the data-charting process were developed, and the data were entered into a custom-made online Smartsheet database. The data were analysed qualitatively and quantitatively. Results: One hundred and five articles were included. Terminology most commonly used to describe decentralised training included ‘rural’, ‘community based’ and ‘longitudinal rural’. The publications largely originated from Australia, the United States of America (USA), Canada and South Africa. Fifty-five percent described decentralised training rotations for periods of more than six months. Thematic analysis of the literature on practice in decentralised medical training identified four themes, each with a number of subthemes. These themes were student learning, the training environment, the role of the community, and leadership and governance. Conclusions: Evident from our findings are the multiplicity and interconnectedness of factors that characterise approaches to decentralised training. The student experience is nested within a particular context that is framed by the leadership and governance that direct it, and the site and the community in which the training is happening. Each decentralised site is seen to have its own dynamic that may foreground certain elements, responding differently to enabling student learning and influencing the student experience. The insights that have been established through this review have relevance in informing the further expansion of decentralised clinical training, including in LMIC contexts.
- ItemDecentralised training for medical students : towards a South African consensus(AOSIS publishing, 2017-09) De Villiers, Marietjie R.; Blitz, Julia; Couper, Ian; Kent, Athol; Moodley, Kalavani; Talib, Zohray; Van Schalkwyk, Susan; Young, TarynIntroduction: Health professions training institutions are challenged to produce greater numbers of graduates who are more relevantly trained to provide quality healthcare. Decentralised training offers opportunities to address these quantity, quality and relevance factors. We wanted to draw together existing expertise in decentralised training for the benefit of all health professionals to develop a model for decentralised training for health professions students. Method: An expert panel workshop was held in October 2015 initiating a process to develop a model for decentralised training in South Africa. Presentations on the status quo in decentralised training at all nine medical schools in South Africa were made and 33 delegates engaged in discussing potential models for decentralised training. Results: Five factors were found to be crucial for the success of decentralised training, namely the availability of information and communication technology, longitudinal continuous rotations, a focus on primary care, the alignment of medical schools’ mission with decentralised training and responsiveness to student needs. Conclusion: The workshop concluded that training institutions should continue to work together towards formulating decentralised training models and that the involvement of all health professions should be ensured. A tripartite approach between the universities, the Department of Health and the relevant local communities is important in decentralised training. Lastly, curricula should place more emphasis on how students learn rather than how they are taught.
- ItemDeveloping prehospital clinical practice guidelines for resource limited settings : why re-invent the wheel?(BioMed Central, 2018-02-05) McCaul, Michael; De Waal, Ben; Hodkinson, Peter; Pigoga, Jennifer L.; Young, Taryn; Wallis, Lee A.Objectives: Methods on developing new (de novo) clinical practice guidelines (CPGs) have received substantial attention. However, the volume of literature is not matched by research into alternative methods of CPG development using existing CPG documents—a specific issue for guideline development groups in low- and middle-income countries. We report on how we developed a context specific prehospital CPG using an alternative guideline development method. Difficulties experienced and lessons learnt in applying existing global guidelines’ recommendations to a national context are highlighted. Results: The project produced the first emergency care CPG for prehospital providers in Africa. It included > 270 CPGs and produced over 1000 recommendations for prehospital emergency care. We encountered various difficulties, including (1) applicability issues: few pre-hospital CPGs applicable to Africa, (2) evidence synthesis: heterogeneous levels of evidence classifications and (3) guideline quality. Learning points included (1) focusing on key CPGs and evidence mapping, (2) searching other resources for CPGs, (3) broad representation on CPG advisory boards and (4) transparency and knowledge translation. Re-inventing the wheel to produce CPGs is not always feasible. We hope this paper will encourage further projects to use existing CPGs in developing guidance to improve patient care in resource-limited settings.
- ItemDevelopment of a best practice model for teaching and learning evidence-based health care at Stellenbosch University, South Africa(Stellenbosch : Stellenbosch University, 2016-03) Young, Taryn; Volmink, Jimmy; Clarke, Mike; Stellenbosch University. Faculty of Medicine and Health Sciences. Dept. of Interdisciplinary Health Sciences. Community Health.ENGLISH ABSTRACT: This thesis used a mixed-methods approach to investigate how teaching and learning of Evidence-based Health Care (EBHC) could best be integrated in medical student training to enhance student EBHC knowledge, attitude and skills. An overview of systematic reviews assessing the effects of teaching EBHC showed that clinically integrated multifaceted strategies with assessment were more effective than single interventions or no interventions for enhancing knowledge, attitude and skills. Implementation of clinically integrated EBHC teaching and learning was further explored through interviews with programme coordinators from around the world. Informants were requested to provide data on the various approaches used, and on barriers and facilitators encountered with programmes aimed at teaching and learning EBHC in an integrated manner. By far the most common challenges were lack of space in the clinical setting, EBHC misconceptions, resistance of staff and lack of confidence of tutors, time, and negative role modelling. Critical success factors identified were pragmatism and nimbleness in responding to opportunities for engagement and including EBHC learning into the curriculum, patience, and a critical mass of the right teachers who have EBHC knowledge, attitudes and skills and are confident in facilitating learning. In addition, role modelling within the clinical setting and the overall institutional context were found to be important for success. The next phase involved conducting a set of studies to determine the opportunities for, and barriers to, implementing EBHC teaching and learning at Stellenbosch University’s (SU) Faculty of Medicine and Health Sciences. This included a curriculum document review, survey of recent graduates and interviews with faculty. EBHC teaching was found to be fragmented and recent graduates called for more teaching of certain EBHC competencies. Module convenors identified a number of factors that needed to be addressed: contextual factors within the faculty (e.g. recognition for teaching), health sector issues (e.g. clinical workload), access to research evidence, and issues related to educators (e.g. competing priorities) and learners (e.g. motivation). Interviewees also emphasised the importance of educators as facilitators and role models. A cross-sectional study of SU was conducted to assess SU educators’ knowledge of, attitude to and confidence in practicing and teaching EBHC as well as perceived barriers to practicing and teaching EBHC. Limitations to practicing EBHC identified included lack of time, clinical workload, limited access to internet and resources, knowledge and skills. Respondents’ called for reliable internet access, easy point-of-care access to databases and resources, increasing awareness of EBHC, building capacity to practice and facilitate learning of EBHC, and a supportive community of practice. Finally, drawing on the findings of the preceding quantitative and qualitative studies, and taking into account the context of various EBHC initiatives in the African region, an outline proposal is presented for a cluster randomised trial to evaluate alternative options for implementing a clinically integrated EBHC curriculum in an African setting.
- ItemEffective or just practical? : an evaluation of an online postgraduate module on evidence-based medicine (EBM)(BioMed Central, 2013-05) Rohwer, Anke; Young, Taryn; Van Schalkwyk, SusanTeaching the steps of evidence-based medicine (EBM) to undergraduate as well as postgraduate health care professionals is crucial for implementation of effective, beneficial health care practices and abandonment of ineffective, harmful ones. Stellenbosch University in Cape Town, South Africa, offers a 12-week, completely online module on EBM within the Family Medicine division, to medical specialists in their first year of training. The aim of this study was to formatively evaluate this module; assessing both the mode of delivery; as well as the perceived effectiveness and usefulness thereof. Methods We used mixed methods to evaluate this module: A document review to assess whether the content of the module reflects important EBM competencies; a survey of the students to determine their experiences of the module; and semi-structured interviews with the tutors to explore their perspectives of the module. Ethics approval was obtained. Results The document review indicated that EBM competencies were covered adequately, although critical appraisal only focused on randomised controlled trials and guidelines. Students had a positive attitude towards the module, but felt that they needed more support from the tutors. Tutors felt that students engaged actively in discussions, but experienced difficulties with understanding certain concepts of EBM. Furthermore, they felt that it was challenging explaining these via the online learning platform and saw the need to incorporate more advanced technology to better connect with the students. In their view the key to successful learning of EBM was to keep it relevant and applicable to everyday practice. Tutors also felt that an online module on EBM was advantageous, since doctors from all over the world were able to participate. Conclusion Our study has shown that the online module on EBM was effective in increasing EBM knowledge and skills of postgraduate students and was well received by both students and tutors. Students and tutors experienced generic challenges that accompany any educational intervention of EBM (e.g. understanding difficult concepts), but in addition had to deal with challenges unique to the online learning environment. Teachers of EBM should acknowledge these so as to enhance and successfully implement EBM teaching and learning for all students.
- ItemEnhancing evidence informed policymaking in complex health systems : lessons from multi-site collaborative approaches(BioMed Central, 2016-03-17) Langlois, Etienne V.; Montekio, Victor Becerril; Young, Taryn; Song, Kayla; Alcalde-Rabanal, Jacqueline; Tran, NhanENGLISH SUMMARY : Background: There is an increasing interest worldwide to ensure evidence-informed health policymaking as a means to improve health systems performance. There is a need to engage policymakers in collaborative approaches to generate and use knowledge in real world settings. To address this gap, we implemented two interventions based on iterative exchanges between researchers and policymakers/implementers. This article aims to reflect on the implementation and impact of these multi-site evidence-to-policy approaches implemented in low-resource settings. Methods: The first approach was implemented in Mexico and Nicaragua and focused on implementation research facilitated by communities of practice (CoP) among maternal health stakeholders. We conducted a process evaluation of the CoPs and assessed the professionals’ abilities to acquire, analyse, adapt and apply research. The second approach, called the Policy BUilding Demand for evidence in Decision making through Interaction and Enhancing Skills (Policy BUDDIES), was implemented in South Africa and Cameroon. The intervention put forth a ‘buddying’ process to enhance demand and use of systematic reviews by sub-national policymakers. The Policy BUDDIES initiative was assessed using a mixed-methods realist evaluation design. Results: In Mexico, the implementation research supported by CoPs triggered monitoring by local health organizations of the quality of maternal healthcare programs. Health programme personnel involved in CoPs in Mexico and Nicaragua reported improved capacities to identify and use evidence in solving implementation problems. In South Africa, Policy BUDDIES informed a policy framework for medication adherence for chronic diseases, including both HIV and non-communicable diseases. Policymakers engaged in the buddying process reported an enhanced recognition of the value of research, and greater demand for policy-relevant knowledge. Conclusions: The collaborative evidence-to-policy approaches underline the importance of iterations and continuity in the engagement of researchers and policymakers/programme managers, in order to account for swift evolutions in health policy planning and implementation. In developing and supporting evidence-to-policy interventions, due consideration should be given to fit-for-purpose approaches, as different needs in policymaking cycles require adapted processes and knowledge. Greater consideration should be provided to approaches embedding the use of research in real-world policymaking, better suited to the complex adaptive nature of health systems.
- ItemEpidemiology of traumatic orthopaedic injuries at Princess Marina Hospital, Botswana(South African Orthopaedic Association, 2018) Manwana, M. E.; Mokone, G. G.; Kebaetse, M.; Young, TarynBackground: Traumatic injuries pose a significant and increasing challenge to healthcare systems worldwide. One major type of traumatic injury is the traumatic orthopaedic injury, whose epidemiology is unknown in Botswana. The aim of the study, therefore, was to evaluate the age, sex, type, and determinants of traumatic orthopaedic injuries for inpatients at Princess Marina Hospital from August 2014 to January 2015. Methods: We performed a descriptive study by retrospectively collecting data on age, sex, date of admission, date of injury, date of discharge, radiological investigation, and injury types and determinants from medical records of patients admitted to orthopaedic wards. Results: The median age of patients with traumatic orthopaedic injuries was 33.5 years (n=372). Males were more frequently injured than females, with a sex ratio of 7:3. Fractures were the most common type of traumatic orthopaedic injury (413 injuries, 75.5%). The most common injury determinants were falls (145 patients/39.0%), road traffic accidents (95 patients/25.5%), and assaults (57 patients/15.3%). Conclusions: Young adult males were the group most affected by traumatic orthopaedic injuries. Fractures were the most common type of traumatic orthopaedic injuries, with falls being the most common injury determinant. These findings may guide efforts to improve healthcare delivery and public health policy.
- ItemEvaluating evidence-based health care teaching and learning in the undergraduate human nutrition; occupational therapy; physiotherapy; and speech, language and hearing therapy programs at a sub-Saharan African academic institution(Public Library of Science, 2017-02-16) Schoonees, Anel; Rohwer, A.; Young, Taryn; Interdisciplinary Health Sciences: Centre for Evidence-Based Health CareBackground: It is important that all undergraduate healthcare students are equipped with evidence-based health care (EBHC) knowledge and skills to encourage evidence-informed decision-making after graduation. We assessed EBHC teaching and learning in undergraduate human nutrition (HN); occupational therapy (OT); physiotherapy (PT); and speech, language and hearing therapy (SPLH) programs at a sub-Saharan African university. Methods: We used methodological triangulation to obtain a comprehensive understanding of EBHC teaching and learning: (1) through a document review of module guides, we identified learning outcomes related to pre-specified EBHC competencies; we conducted (2) focus group discussions and interviews of lecturers to obtain their perspectives on EBHC and on EBHC teaching and learning; and we (3) invited final year students (2013) and 2012 graduates to complete an online survey on EBHC attitudes, self-perceived EBHC competence, and their experience of EBHC teaching and learning. Results: We reviewed all module outlines (n = 89) from HN, PT and SLHT. The OT curriculum was being revised at that time and could not be included. Six lecturers each from HN and OT, and five lecturers each from PT and SLHT participated in the focus groups. Thirty percent (53/176) of invited students responded to the survey. EBHC competencies were addressed to varying degrees in the four programs, although EBHC teaching and learning mostly occurred implicitly. Learning outcomes referring to EBHC focused on enabling competencies (e.g., critical thinking, biostatistics, epidemiology) and were concentrated in theoretical modules. Key competencies (e.g., asking questions, searching databases, critical appraisal) were rarely addressed explicitly. Students felt that EBHC learning should be integrated throughout the four year study period to allow for repetition, consolidation and application of knowledge and skills. Lecturers highlighted several challenges to teaching and practising EBHC, including lack of evidence relevant to the African context and lack of time within curricula.
- ItemEvidence synthesis workshops : moving from face-to-face to online learning(BMJ Publishing, 2021-10) McCaul, Michael; Durao, Solange; Kredo, Tamara; Garner, Paul; Young, Taryn; Rohwer, AnkePostgraduate training is moving from face-to-face workshops or courses to online learning to help increase access to knowledge, expertise and skills, and save the cost of face-to-face training. However, moving from face-to-face to online learning for many of us academics is intimidating, and appears even more difficult without the help of a team of technologists. In this paper, we describe our approach, our experiences and the lessons we learnt from converting a Primer in Systematic Reviews face-to-face workshop to a 6-week online course designed for healthcare professionals in Africa. We learnt that the team needs a balance of skills and experience, including technical know-how and content knowledge; that the learning strategies needed to achieve the learning objectives must match the content delivery. The online approach should result in both building knowledge and developing skills, and include interactive and participatory approaches. Finally, the design and delivery needs to keep in mind the limited and expensive internet access in some resource-poor settings in Africa.
- ItemGlobal emergency care clinical practice guidelines : a landscape analysis(Elsevier, 2018) McCaul, Michael; Clarke, Mike; Bruijns, Stevan R.; Hodkinson, Peter W.; De Waal, Ben; Pigoga, Jennifer; Wallis, Lee A.; Young, TarynIntroduction: An adaptive guideline development method, as opposed to a de novo guideline development, is dependent on access to existing high-quality up-to-date clinical practice guidelines (CPGs). We described the characteristics and quality of CPGs relevant to prehospital care worldwide, in order to strengthen guideline development in low-resource settings for emergency care. Methods: We conducted a descriptive study of a database of international CPGs relevant to emergency care produced by the African Federation for Emergency Medicine (AFEM) CPG project in 2016. Guideline quality was assessed with the AGREE II tool, independently and in duplicate. End-user documents such as protocols, care pathways, and algorithms were excluded. Data were imported, managed, and analysed in STATA 14 and R. Results: In total, 276 guidelines were included. Less than 2% of CPGs originated from low- and middle incomecountries (LMICs); only 15% (n=38) of guidelines were prehospital specific, and there were no CPGs directly applicable to prehospital care in LMICs. Most guidelines used de novo methods (58%, n=150) and were produced by professional societies or associations (63%, n=164), with the minority developed by international bodies (3%, n=7). National bodies, such as the National Institute for Health and Care Excellence (NICE) and the Scottish Intercollegiate Guidelines Network (SIGN), produced higher quality guidelines when compared to international guidelines, professional societies, and clinician/academic-produced guidelines. Guideline quality varied across topics, subpopulations and producers. Resource-constrained guideline developers that cannot afford de novo guideline development have access to an expanding pool of high-quality prehospital guidelines to translate to their local setting. Discussion: Although some high-quality CPGs exist relevant to emergency care, none directly address the needs of prehospital care in LMICs, especially in Africa. Strengthening guideline development capacity, including adaptive guideline development methods that use existing high-quality CPGs, is a priority.
- ItemIntegrated models of care for diabetes and hypertension in low- and middle-income countries (LMICs) : protocol for a systematic review(BMC (part of Springer Nature), 2018) Nicol, Jeannine Uwimana; Rohwer, Anke; Young, Taryn; Bavuma, Charlotte M.; Meerphol, Joerg J.Background: In low- and middle-income countries (LMICs), the burden of non-communicable diseases (NCDs) is growing against an existing burden of other diseases such as HIV/AIDS. Integrated models of care can help address the rising burden of multi-morbidity. Although integration of care can occur at various levels and has been defined in numerous ways, our aim is to assess the effects of integration of service delivery at primary healthcare level in LMICs. Methods: We will consider randomised controlled trials (RCTs), cluster RCTs, non-randomised trials, controlled beforeafter studies and interrupted time series that examine integrated models of care among people with multi-morbidities, of which diabetes or hypertension is one, living in LMICs. We will compare fully integrated models of care to standalone care, partially integrated models of care to stand-alone care and fully integrated models to partially integrated models of care. Primary outcomes include all-cause mortality, disease-specific morbidity, HbA1c, systolic blood pressure and cholesterol levels. Secondary outcomes include access to care, retention in care, adherence, continuity of care, quality of care and cost of care. We will conduct a comprehensive search in the following databases: MEDLINE, EMBASE, the Cochrane Central Register of Control Trials, LILACS, Africa-Wide Information, CINAHL and Web of Science. In addition, we will search trial registries, relevant conference abstracts and check references lists of included studies. Selection of studies, data extraction and assessment of risk of bias will be performed independently by two review authors. We will resolve discrepancies through discussion with a third author. We will contact study authors in case of missing data. If included studies are sufficiently homogenous, we will pool results in a meta-analysis. Clinical heterogeneity related to the population, intervention, outcomes and context will be documented in table format and explored through subgroup analysis. We will assess χ²and I² tests for statistical heterogeneity. We will use GRADE to make judgements about the certainty of evidence and present findings in a summary of findings table. Discussion: In light of limited evidence on the provision of comprehensive care for diabetes and hypertension, and its comorbidity in LMCIs, we believe that the findings of this systematic review will provide a synthesis of evidence on effective models of integrated care for diabetes and hypertension and their comorbidities at primary healthcare level. This will enable policy-makers to device policies and programs that are evidence informed.
- ItemIntegration of care for hypertension and diabetes : a scoping review assessing the evidence from systematic reviews and evaluating reporting(BioMed Central, 2018-06-20) Yiu, Kristy C.; Rohwer, Anke; Young, TarynBackground: With the rise in premature mortality rate from non-communicable disease (NCD), there is a need for evidence-based interventions. We evaluated existing systematic reviews on effectiveness of integration of healthcare services, in particular with focus on delivery of care designed to improve health and process outcomes in people with multi-morbidity, where at least one of the conditions was diabetes or hypertension. Methods: We searched MEDLINE, EMBASE, Cochrane Library, and Health Evidence to November 8, 2016 and consulted experts. One review author screened titles, abstracts and two review authors independently screened short listed full-texts and selected reviews for inclusion. We considered systematic reviews evaluating integration of care, compared to usual care, for people with multi-morbidity. One review author extracted data and another author verified it. Two review authors independently evaluated risk of bias using ROBIS and AMSTAR. Inter-rater reliability was analysed for ROBIS and AMSTAR using Cohen’s kappa and percent agreement. The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) checklist was used to assess reporting. Results: We identified five systematic reviews on integration of care. Four reviews focused on comorbid diabetes and depression and two covered hypertension and comorbidities of cardiovascular disease, depression, or diabetes. Interventions were poorly described. The health outcomes evaluated included risk of all-cause mortality, measures of depression, cholesterol levels, HbA1c levels, effect of depression on HbA1c levels, symptom improvement, systolic blood pressure, and hypertension control. Process outcomes included access and utilisation of healthcare services, costs, and quality of care. Overall, three reviews had a low and medium risk of bias according to ROBIS and AMSTAR respectively, while two reviews had high risk of bias as judged by both ROBIS and AMSTAR. Findings have demonstrated that collaborative care in general resulted in better health and process outcomes when compared to usual care for both depression and diabetes and hypertension and diabetes. Conclusions: Several knowledge gaps were identified on integration of care for comorbidities with diabetes and/or hypertension: limited research on this topic for hypertension, limited reviews that included primary studies based in low-middle income countries, and limited reviews on collaborative care for communicable and NCDs.
- ItemIsoniazid for preventing tuberculosis in HIV-infected children(John Wiley & Sons, Ltd. on behalf of The Cochrane Collaboration, 2017) Zunza, Moleen; Gray, Diane M.; Young, Taryn; Cotton, Mark; Zar, Heather J.Background: Tuberculosis (TB) is an important cause of illness and death in HIV‐positive children living in areas of high TB prevalence. We know that isoniazid prophylaxis prevents TB in HIV‐negative children following TB exposure, but there is uncertainty related to its role in TB preventive treatment in HIV‐positive children. Objectives: To summarise the effects of TB preventive treatment versus placebo in HIV‐positive children with no known TB contact on active TB, death, and reported adverse events. Search methods: We searched the Cochrane Central Register of Controlled Trials (CENTRAL), MEDLINE/PubMed, Embase and two trial registers up to February 2017. Selection criteria: We included trials of HIV‐positive children with and without known TB exposure, randomized to receive TB preventive treatment or placebo. Data collection and analysis: Two review authors independently used the study selection criteria, assessed risk of bias, and extracted data. We assessed effects using risk, incidence rate and hazard ratios and assessed the certainty of evidence using GRADE. Main results: We included three trials, involving 991 participants, below the age of 13 years, from South Africa and Botswana. Children were randomized to isoniazid prophylaxis or placebo, given daily or three times weekly. The median length of follow‐up ranged from 5.7 to 34 months; some were on antiretroviral therapy (ART). In HIV‐positive children not on ART, isoniazid prophylaxis may reduce the risk of active TB (hazard ratio (HR) 0.31, 95% confidence interval (CI) 0.11 to 0.87; 1 trial, 240 participants, low certainty evidence), and death (HR 0.46, 95% CI 0.22 to 0.95; 1 trial, 240 participants, low certainty evidence). One trial (182 participants) reported number of children with laboratory adverse events, which was similar between the isoniazid prophylaxis and placebo groups. No clinical adverse events were reported. In HIV‐positive children on ART, we do not know if isoniazid prophylaxis reduces the risk of active TB (risk ratio (RR) 0.76, 95% CI 0.50 to 1.14; 3 trials, 737 participants, very low certainty evidence) or death (RR 1.45, 95% CI 0.78 to 2.72; 3 trials, 737 participants, very low certainty evidence). Two trials (714 participants) reported number of clinical adverse events and three trials (795 participants) reported number of laboratory adverse events; for both categories, the number of adverse events were similar between the isoniazid prophylaxis and placebo groups. Authors' conclusions: Isoniazid prophylaxis given to all children diagnosed with HIV may reduce the risk of active TB and death in HIV‐positive children not on ART in studies from Africa. For children on ART, no clear benefit was detected.
- ItemLow carbohydrate versus isoenergetic balanced diets for reducing weight and cardiovascular risk : a systematic review and meta-analysis(Public Library of Science, 2014-07) Naude, Celeste E.; Schoonees, Anel; Senekal, Marjanne; Young, Taryn; Garner, Paul; Volmink, JimmyAbstract Background: Some popular weight loss diets restricting carbohydrates (CHO) claim to be more effective, and have additional health benefits in preventing cardiovascular disease compared to balanced weight loss diets. Methods and Findings: We compared the effects of low CHO and isoenergetic balanced weight loss diets in overweight and obese adults assessed in randomised controlled trials (minimum follow-up of 12 weeks), and summarised the effects on weight, as well as cardiovascular and diabetes risk. Dietary criteria were derived from existing macronutrient recommendations. We searched Medline, EMBASE and CENTRAL (19 March 2014). Analysis was stratified by outcomes at 3–6 months and 1–2 years, and participants with diabetes were analysed separately. We evaluated dietary adherence and used GRADE to assess the quality of evidence. We calculated mean differences (MD) and performed random-effects metaanalysis. Nineteen trials were included (n = 3209); 3 had adequate allocation concealment. In non-diabetic participants, our analysis showed little or no difference in mean weight loss in the two groups at 3–6 months (MD 0.74 kg, 95%CI 21.49 to 0.01 kg; I2 = 53%; n = 1745, 14 trials; moderate quality evidence) and 1–2 years (MD 0.48 kg, 95%CI 21.44 kg to 0.49 kg; I2 = 12%; n = 1025; 7 trials, moderate quality evidence). Furthermore, little or no difference was detected at 3–6 months and 1–2 years for blood pressure, LDL, HDL and total cholesterol, triglycerides and fasting blood glucose (.914 participants). In diabetic participants, findings showed a similar pattern. Conclusions: Trials show weight loss in the short-term irrespective of whether the diet is low CHO or balanced. There is probably little or no difference in weight loss and changes in cardiovascular risk factors up to two years of follow-up when overweight and obese adults, with or without type 2 diabetes, are randomised to low CHO diets and isoenergetic balanced weight loss diets.
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