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1.
Lancet Digit Health ; 5(10): e712-e736, 2023 10.
Article in English | MEDLINE | ID: mdl-37775189

ABSTRACT

Data sharing is central to the rapid translation of research into advances in clinical medicine and public health practice. In the context of COVID-19, there has been a rush to share data marked by an explosion of population-specific and discipline-specific resources for collecting, curating, and disseminating participant-level data. We conducted a scoping review and cross-sectional survey to identify and describe COVID-19-related platforms and registries that harmonise and share participant-level clinical, omics (eg, genomic and metabolomic data), imaging data, and metadata. We assess how these initiatives map to the best practices for the ethical and equitable management of data and the findable, accessible, interoperable, and reusable (FAIR) principles for data resources. We review gaps and redundancies in COVID-19 data-sharing efforts and provide recommendations to build on existing synergies that align with frameworks for effective and equitable data reuse. We identified 44 COVID-19-related registries and 20 platforms from the scoping review. Data-sharing resources were concentrated in high-income countries and siloed by comorbidity, body system, and data type. Resources for harmonising and sharing clinical data were less likely to implement FAIR principles than those sharing omics or imaging data. Our findings are that more data sharing does not equate to better data sharing, and the semantic and technical interoperability of platforms and registries harmonising and sharing COVID-19-related participant-level data needs to improve to facilitate the global collaboration required to address the COVID-19 crisis.


Subject(s)
COVID-19 , Humans , COVID-19/epidemiology , Cross-Sectional Studies , Information Dissemination/methods , Registries , Metadata
2.
Trop Med Infect Dis ; 8(7)2023 Jul 24.
Article in English | MEDLINE | ID: mdl-37505674

ABSTRACT

Implementing infection prevention and control (IPC) programmes in line with the World Health Organization's (WHO) eight core components has been challenging in Sierra Leone. In 2021, a baseline study found that IPC compliance in three tertiary hospitals was sub-optimal. We aimed to measure the change in IPC compliance and describe recommended actions at these hospitals in 2023. This was a 'before and after' observational study using two routine cross-sectional assessments of IPC compliance using the WHO IPC Assessment Framework tool. IPC compliance was graded as inadequate (0-200), basic (201-400), intermediate (401-600), and advanced (601-800). The overall compliance scores for each hospital showed an improvement from 'Basic' in 2021 to 'Intermediate' in 2023, with a percentage increase in scores of 16.9%, 18.7%, and 26.9% in these hospitals. There was improved compliance in all core components, with the majority in the 'Intermediate' level for each hospital IPC programme. Recommended actions including the training of healthcare workers and revision of IPC guidelines were undertaken, but a dedicated IPC budget and healthcare-associated infection surveillance remained as gaps in 2023. Operational research is valuable in monitoring and improving IPC programme implementation. To reach the 'Advanced' level, these hospitals should establish a dedicated IPC budget and develop long-term implementation plans.

3.
J Vet Med Educ ; 50(2): 183-191, 2023 Apr.
Article in English | MEDLINE | ID: mdl-35143362

ABSTRACT

This study investigated equine nutrition knowledge and educational needs of licensed veterinarians in the United States who were exclusively or predominately equine practitioners. It found veterinarians regard their peers as an important resource of nutritional knowledge, ranking ahead of all other sources except a PhD equine nutritionist. Interestingly, only 21% of veterinarians felt good about their knowledge level in equine nutrition after graduating from veterinary school. Although veterinarians in this study reported equine nutrition to be an area of weakness, 75% had not pursued continuing education in the field of nutrition within the last year. Additionally, they devoted only 65 minutes per year on average to improving their knowledge of equine nutrition, yet the majority (82.2%) had been providing nutritional advice to clients. This study revealed that time spent practicing veterinary medicine increases (p < .001) a veterinarian's self-perceived knowledge level of equine nutrition, shifting from just below average after graduation from veterinary school to just above average at the time of this study. The majority (70%) of veterinarians in this study believe nutrition is very important in their practice philosophy, and 71% showed interest in taking online continuing education courses; thus, curriculum should be developed and offered in areas of need as identified by this study. These areas include insulin resistance, equine gastric ulcer syndrome, equine metabolic syndrome, performance horses, equine pituitary pars intermedia dysfunction, equine polysaccharide storage myopathy, and arthritis/joint pain, along with how to assess nutritional status during general wellness examinations.


Subject(s)
Animal Nutritional Physiological Phenomena , Clinical Competence , Veterinarians , Animals , Humans , Curriculum , Education, Continuing , Education, Distance , Education, Veterinary , Horses , Surveys and Questionnaires , Veterinarians/psychology , Veterinarians/statistics & numerical data , Clinical Competence/statistics & numerical data , Needs Assessment , United States , Licensure , Male , Female , Adult , Middle Aged
4.
Article in English | MEDLINE | ID: mdl-36078530

ABSTRACT

Antimicrobial resistant (AMR) bacteria in effluents from seafood processing facilities can contribute to the spread of AMR in the natural environment. In this study conducted in Tema, Ghana, a total of 38 effluent samples from two seafood processing facilities were collected during 2021 and 2022, as part of a pilot surveillance project to ascertain the bacterial load, bacterial species and their resistance to 15 antibiotics belonging to the WHO AWaRe group of antibiotics. The bacterial load in the effluent samples ranged from 13-1800 most probable number (MPN)/100 mL. We identified the following bacterial species: E. coli in 31 (82%) samples, K. pneumoniae in 15 (39%) samples, Proteus spp. in 6 (16%) samples, P. aeruginosa in 2 (5%) samples and A. baumannii in 2 (5%) samples. The highest levels of antibiotic resistance (100%) were recorded for ampicillin and cefuroxime among Enterobacteriaceae. The WHO priority pathogens-E. coli (resistant to cefotaxime, ceftazidime and carbapenem) and K.pneumoniae (resistant to ceftriaxone)-were found in 5 (13%) effluent samples. These findings highlight the need for enhanced surveillance to identify the source of AMR and multi-drug resistant bacteria and an adoption of best practices to eliminate these bacteria in the ecosystem of the seafood processing facilities.


Subject(s)
Ecosystem , Escherichia coli , Anti-Bacterial Agents/pharmacology , Anti-Bacterial Agents/therapeutic use , Bacteria , Drug Resistance, Bacterial , Ghana , Gram-Negative Bacteria , Klebsiella pneumoniae , Microbial Sensitivity Tests , Pseudomonas aeruginosa , Seafood , World Health Organization
5.
Article in English | MEDLINE | ID: mdl-36011917

ABSTRACT

BACKGROUND: Monitoring of antibiotic prescription practices in hospitals is essential to assess and facilitate appropriate use. This is relevant to halt the progression of antimicrobial resistance. METHODS: Assessment of antibiotic prescribing patterns and completeness of antibiotic prescriptions among out-patients in 2021 was conducted at the University Hospital of Kwame Nkrumah University of Science and Technology in the Ashanti region of Ghana. We reviewed electronic medical records (EMR) of 49,660 patients who had 110,280 encounters in the year. RESULTS: The patient encounters yielded 350,149 prescriptions. Every month, 33-36% of patient encounters resulted in antibiotic prescription, higher than the World Health Organization's (WHO) recommended optimum of 27%. Almost half of the antibiotics prescribed belonged to WHO's Watch group. Amoxicillin-clavulanic acid (50%), azithromycin (29%), ciprofloxacin (28%), metronidazole (21%), and cefuroxime (20%) were the most prescribed antibiotics. Antibiotic prescribing parameters (indication, name of drug, duration, dose, route, and frequency) were documented in almost all prescriptions. CONCLUSIONS: Extending antimicrobial stewardship to the out-patient settings by developing standard treatment guidelines, an out-patient specific drug formulary, and antibiograms can promote rational antibiotic use at the hospital. The EMR system of the hospital is a valuable tool for monitoring prescriptions that can be leveraged for future audits.


Subject(s)
Anti-Bacterial Agents , Outpatients , Anti-Bacterial Agents/therapeutic use , Cross-Sectional Studies , Drug Prescriptions , Ghana , Hospitals, District , Humans , Practice Patterns, Physicians'
6.
Article in English | MEDLINE | ID: mdl-36012083

ABSTRACT

There is little published information on antimicrobial resistance (AMR) in animals in Ghana. We determined the prevalence and factors associated with AMR, multi-drug resistance (MDR-resistance to ≥3 antimicrobial classes) and colistin resistance in Enterobacteriaceae in healthy pigs in Accra, Ghana. Rectal swabs obtained from the pigs on 20 farms from January to March 2022, were examined for Escherichia coli, Enterobacter spp. and Klebsiella pneumoniae. AMR was determined using standard microbiological techniques and the mcr-1 gene detected through molecular analysis. Enterobacteriaceae were isolated from 197 of 200 pigs: these comprised 195 E. coli isolates, 38 Enterobacter spp. and 3 K. pneumoniae, either singly or combined. Over 60% of E. coli were resistant to tetracycline, with 27% and 34% being resistant to amoxicillin/clavulanic acid and ampicillin, respectively; 23% of E. coli and 5% of Enterobacter spp. exhibited MDR phenotypes. Phenotypic colistin resistance was found in 8% of E. coli and Enterobacter spp., with the mcr-1 gene detected in half. Our study findings should be incorporated into on-going AMR, MDR and colistin resistance surveillance programs in Ghana. We further advocate for tailored-specific education for pig farmers on animal antimicrobial use and for strengthened regulatory policy on antimicrobial usage and monitoring in the animal production industry.


Subject(s)
Colistin , Escherichia coli Proteins , Animals , Anti-Bacterial Agents/pharmacology , Anti-Bacterial Agents/therapeutic use , Colistin/pharmacology , Cross-Sectional Studies , Drug Resistance, Bacterial/genetics , Enterobacteriaceae , Escherichia coli , Escherichia coli Proteins/genetics , Ghana/epidemiology , Klebsiella pneumoniae , Microbial Sensitivity Tests , Swine
7.
Wellcome Open Res ; 7: 5, 2022.
Article in English | MEDLINE | ID: mdl-35493199

ABSTRACT

The Infectious Diseases Data Observatory (IDDO, https://www.iddo.org) has launched a clinical data platform for the collation, curation, standardisation and reuse of individual participant data (IPD) on treatments for two of the most globally important neglected tropical diseases (NTDs), schistosomiasis (SCH) and soil-transmitted helminthiases (STHs). This initiative aims to harness the power of data-sharing by facilitating collaborative joint analyses of pooled datasets to generate robust evidence on the efficacy and safety of anthelminthic treatment regimens. A crucial component of this endeavour has been the development of a Research Agenda to promote engagement with the SCH and STH research and disease control communities by highlighting key questions that could be tackled using data shared through the IDDO platform. Here, we give a contextual overview of the priority research themes articulated in the Research Agenda-a 'living' document hosted on the IDDO website-and describe the three-stage consultation process behind its development. We also discuss the sustainability and future directions of the platform, emphasising throughout the power and promise of ethical and equitable sharing and reuse of clinical data to support the elimination of NTDs.

8.
Wellcome Open Res ; 7: 101, 2022.
Article in English | MEDLINE | ID: mdl-35419494

ABSTRACT

BACKGROUND: A growing body of evidence shows that sharing health research data with other researchers for secondary analyses can contribute to better health. This is especially important in the context of a public health emergency when stopping a pandemic depends on accelerating science. METHODS: We analysed the information on data sharing collected by the 18 clinical trial registries included in the WHO International Clinical Trials Registry Platform (ICTRP) to understand the reporting of data sharing plans and which studies were and were not planning to share data. Data on sponsor and funder organisations, country of recruitment, registry, and condition of study were standardised to compare the sharing of information and data across these facets. This represents the first ever comprehensive study of the complete data set contained in ICTRP. RESULTS: Across 132,545 studies registered between January 2019 and December 2020, 11.2% of studies stated that individual patient data (IPD) would be shared. Plans to share IPD varied across the 18 contributing registries- information on data sharing was missing in >95% of study records across 7/18 registries. In the 26,851 (20.3%) studies that were funded or sponsored by a commercial entity, intention to share IPD was similar to those that were not (11.5% vs 11.2%). Intention to share IPD was most common in studies recruiting across both high-income and low- or middle-income countries (21.4%) and in those recruiting in Sub-Saharan Africa (50.3%). Studies of COVID-19 had similar levels of data sharing to studies of other non-pandemic diseases in 2020 (13.7% vs 11.7%). CONCLUSIONS: Rates of planned IPD sharing vary between clinical trial registries and economic regions, and are similar whether commercial or non-commercial agencies are involved. Despite many calls to action, plans to share IPD have not increased significantly and remain below 14% for diseases causing public health emergencies.

9.
Article in English | MEDLINE | ID: mdl-35328953

ABSTRACT

Background: Monitoring of adverse drug reactions (ADRs) to antimicrobials is important, as they can cause life-threatening illness, permanent disabilities, and death. We assessed country-wide ADR reporting on antimicrobials and their outcomes. Methods: A cross-sectional study was conducted using individual case safety reports (ICSRs) entered into the national pharmacovigilance database (VigiFlow) during 2017−2021. Results: Of 566 ICSRs, inconsistent reporting was seen, with the highest reporting in 2017 and 2019 (mass drug campaigns for deworming), zero reporting in 2018 (reasons unknown), and only a handful in 2020 and 2021 (since COVID-19). Of 566 ICSRs, 90% were for antiparasitics (actively reported during mass campaigns), while the rest (passive reporting from health facilities) included 8% antibiotics, 7% antivirals, and 0.2% antifungals. In total, 90% of the reports took >30 days to be entered (median = 165; range 2−420 days), while 44% had <75% of all variables filled in (desired target = 100%). There were 10 serious ADRs, 18 drug withdrawals, and 60% of ADRs affected the gastrointestinal system. The patient outcomes (N-566) were: recovered (59.5%), recovering (35.5%), not recovered (1.4%), death (0.2%), and unknown (3.4%). There was no final ascertainment of 'recovering' outcomes. Conclusions: ADR reporting is inconsistent, with delays and incomplete data. This is a wake-up call for introducing active reporting and setting performance targets.


Subject(s)
COVID-19 Drug Treatment , COVID-19 , Drug-Related Side Effects and Adverse Reactions , Adverse Drug Reaction Reporting Systems , COVID-19/epidemiology , Cross-Sectional Studies , Drug-Related Side Effects and Adverse Reactions/epidemiology , Humans , Sierra Leone
10.
Health Res Policy Syst ; 19(1): 140, 2021 Dec 06.
Article in English | MEDLINE | ID: mdl-34865640

ABSTRACT

BACKGROUND: The use of research evidence as an input for health decision-making is a need for most health systems. There are a number of approaches for promoting evidence use at different levels of the health system, but knowledge of their effectiveness is still scarce. The objective of this overview was to evaluate the effectiveness of knowledge communication and dissemination interventions, strategies or approaches targeting policy-makers and health managers. METHODS: This overview of systematic reviews used systematic review methods and was conducted according to a predefined and published protocol. A comprehensive electronic search of 13 databases and a manual search in four websites were conducted. Both published and unpublished reviews in English, Spanish or Portuguese were included. A narrative synthesis was undertaken, and effectiveness statements were developed, informed by the evidence identified. RESULTS: We included 27 systematic reviews. Three studies included only a communication strategy, while eight only included dissemination strategies, and the remaining 16 included both. None of the selected reviews provided "sufficient evidence" for any of the strategies, while four provided some evidence for three communication and four dissemination strategies. Regarding communication strategies, the use of tailored and targeted messages seemed to successfully lead to changes in the decision-making practices of the target audience. Regarding dissemination strategies, interventions that aimed at improving only the reach of evidence did not have an impact on its use in decisions, while interventions aimed at enhancing users' ability to use and apply evidence had a positive effect on decision-making processes. Multifaceted dissemination strategies also demonstrated the potential for changing knowledge about evidence but not its implementation in decision-making. CONCLUSIONS: There is limited evidence regarding the effectiveness of interventions targeting health managers and policy-makers, as well as the mechanisms required for achieving impact. More studies are needed that are informed by theoretical frameworks or specific tools and using robust methods, standardized outcome measures and clear descriptions of the interventions. We found that passive communication increased access to evidence but had no effect on uptake. Some evidence indicated that the use of targeted messages, knowledge-brokering and user training was effective in promoting evidence use by managers and policy-makers.


Subject(s)
Health Policy , Policy Making , Administrative Personnel , Communication , Humans , Systematic Reviews as Topic
11.
Health res. policy syst ; (140): 1-14, Dec, 6, 2021.
Article in English | PIE | ID: biblio-1349174

ABSTRACT

The use of research evidence as an input for health decision-making is a need for most health systems. There are a number of approaches for promoting evidence use at different levels of the health system, but knowledge of their effectiveness is still scarce. The objective of this overview was to evaluate the effectiveness of knowledge communication and dissemination interventions, strategies or approaches targeting policy-makers and health managers.


Subject(s)
Humans , Health Management , Evidence-Based Practice , Health Communication , Health Policy
12.
Trop Med Infect Dis ; 6(2)2021 Apr 05.
Article in English | MEDLINE | ID: mdl-33916475

ABSTRACT

Inappropriate antibiotic use in food-producing animals is associated with the emergence and spread of antibiotic resistance. In industrial broiler poultry farms in three districts of Kathmandu valley, Nepal, we assessed antibiotic use prevalence, and their classes, types, and quantities. A cross-sectional questionnaire study involving field visits to large poultry farms (flock size ≥ 3000) of the Kathmandu, Bhaktapur, and Lalitpur districts was conducted. Of 30 farms (total flock size 104,200; range 3000-6000), prevalence of antibiotic use was 90% (95% CI: 73-98%). Six (22%) farms used antibiotics as prophylaxis, while 21 (78%) used it for therapeutics. Seven antibiotics from six classes (including quinolones, macrolides, and polymyxins) were used. The most commonly used antibiotics were tylosin (47%), colistin (47%), and dual therapies with neomycin and doxycycline (33%). A total of 50,000 grams of antibiotics (total weight including active and inactive ingredients) were used (0.5 grams/chicken/45 days of flock life) with eight (26%) farms using more than two antibiotics. No farms had records on clinical indications for prophylaxis or treatment. No post-mortem records of sick birds were available. Prevalence of antibiotic use in broiler farms of Kathmandu valley is high and includes "highest priority critically important antibiotics" for human use, with direct implications on public health.

14.
Histol Histopathol ; 34(2): 149-157, 2019 Feb.
Article in English | MEDLINE | ID: mdl-30051904

ABSTRACT

The WNT/ß-catenin cellular network has been extensively studied in numerous diseases including inflammatory bowel disease (IBD). IBD is a condition that increases the risk of developing colorectal cancer. WIF-1 is an inhibitory protein that acts by blocking the interactions of WNT with its receptor complex, thus leading to downregulation of end products of this pathway. While WIF-1 has been characterized in several cancers, its relationship with IBD has yet to be elucidated. In this study, the expression of WIF-1 in patients with IBD was analyzed in order to provide insights into the pathophysiology and rationale for alternative therapies. Biopsies of both normal and inflamed colonic mucosa from patients with Crohn's disease or ulcerative colitis were histologically examined for the degree of morphologic changes, immune cell infiltration and presence of WIF-1 through immunohistochemistry. No differences were observed in WIF-1 expression linked to a particular condition, but WIF-1 stain was significantly enhanced in the crypts and lamina propria as inflammation increased in biopsies from patients with both, ulcerative colitis and Crohn's disease. These findings could give guidance to new therapeutic applications of the WNT/ß-catenin system and WIF-1 in IBD.


Subject(s)
Adaptor Proteins, Signal Transducing/biosynthesis , Inflammatory Bowel Diseases/metabolism , Inflammatory Bowel Diseases/pathology , Repressor Proteins/biosynthesis , Adaptor Proteins, Signal Transducing/analysis , Adult , Aged , Aged, 80 and over , Female , Humans , Male , Middle Aged , Repressor Proteins/analysis
15.
Curr Dev Nutr ; 2(9): nzy061, 2018 Sep.
Article in English | MEDLINE | ID: mdl-30283915

ABSTRACT

BACKGROUND: The family environment is influential for a child's healthy development through parent and sibling influences on feeding practices. Multiple-child households may protect against unhealthy feeding practices, but additional children contribute to higher maternal stress. Households of married parents may decrease maternal stress by sharing parental demands. OBJECTIVE: We aimed to evaluate the collective influence of maternal stress, marital status, and number of children on feeding practices. METHODS: Mothers of 2- to 5-y-old children (n = 278) were recruited mainly on a university campus and completed an online survey to examine associations between maternal stress (Depression, Anxiety, Stress Scale), number of children, marital status, and feeding practices (restriction and pressure to eat; Child Feeding Questionnaire). Relationships were examined through the use of multivariate regression and structural equation modelling. RESULTS: A mainly married (85%) and Caucasian (73%) sample participated, with most mothers reporting multiple children [2 children (45%) or ≥3 children (24%)]. Marital status was not associated with either feeding practice, i.e., restriction and pressure to eat (P < 0.05). In adjusted models, maternal stress (ß = 0.04, SE = 0.01, P = 0.003) and number of children (ß = 0.24, SE = 0.08, P = 0.003) in the household individually contributed to higher feeding restriction; their interaction resulted in lower feeding restriction (ß = -0.01, SE = 0.05, P = 0.005). In stratified models, maternal stress was associated with restriction in single-child households (ß = -0.03, SE = 0.009, P = 0.002), but not multiple-child households (ß = -0.004, SE = 0.005, P = 0.40). CONCLUSIONS: Number of children had no effect on feeding practices individually, but may contribute to a less restrictive feeding environment. Additional investigation into creating less stressful and more positive feeding environments for all mothers can lead to healthier mothers and families.

16.
Gates Open Res ; 2: 23, 2018.
Article in English | MEDLINE | ID: mdl-30234193

ABSTRACT

Background: Funding for neglected disease product development fell from 2009-2015, other than a brief injection of Ebola funding. One impediment to mobilizing resources is a lack of information on product candidates, the estimated costs to move them through the pipeline, and the likelihood of specific launches. This study aimed to help fill these information gaps. Methods: We conducted a pipeline portfolio review to identify current candidates for 35 neglected diseases. Using an adapted version of the Portfolio to Impact financial modelling tool, we estimated the costs to move these candidates through the pipeline over the next decade and the likely launches. Since the current pipeline is unlikely to yield several critical products, we estimated the costs to develop a set of priority "missing" products. Results: We found 685 neglected disease product candidates as of August 31, 2017; 538 candidates met inclusion criteria for input into the model. It would cost about $16.3 billion (range $13.4-19.8B) to move these candidates through the pipeline, with three-quarters of the costs incurred in the first 5 years, resulting in about 128 (89-160) expected product launches.  Based on the current pipeline, there would be few launches of complex new chemical entities; launches of highly efficacious HIV, tuberculosis, or malaria vaccines would be unlikely. Estimated additional costs to launch one of each of 18 key missing products are $13.6B assuming lowest product complexity or $21.8B assuming highest complexity ($8.1B-36.6B). Over the next 5 years, total estimated costs to move current candidates through the pipeline and develop these 18 missing products would be around $4.5B (low complexity missing products) or $5.8B/year (high complexity missing products). Conclusions: Since current annual global spending on product development is about $3B, this study suggests the annual funding gap over the next 5 years is at least $1.5-2.8B.

17.
Gates Open Res ; 2: 24, 2018.
Article in English | MEDLINE | ID: mdl-30234194

ABSTRACT

Background: The Portfolio-To-Impact (P2I) Model is a novel tool, developed to estimate minimum funding needs to accelerate health product development from late stage preclinical study to phase III clinical trials, and to visualize potential product launches over time. Methods: A mixed methods approach was used. Assumptions on development costs at each phase were based on clinical trial costs from Parexel's R&D cost sourcebook. These were further refined and validated by interviews, with a wide variety of stakeholders from Product Development Partnerships, biopharmaceutical and diagnostic companies, and major funders of global health R&D. Results: the tool was used to create scenarios describing the impact, in terms of products developed, of different product portfolios with funding ranging from $1 million per annum through to $500 million per annum. These scenarios for a new global financing mechanism have been previously presented in a report setting out the potential for a new fund for research and development which would assist in accelerating product development for the diseases of poverty.  Conclusion: The P2I tool does enable a user to model different scenarios in terms of cost and number of health products launched when applied to a portfolio of health products.  The model is published as open access accompanied with a user guide.  The design allows it to be adapted and used for other health R&D portfolio analysis as described in an accompanying publication focussing on the pipeline for neglected diseases in 2017. We aim to continually refine and improve the model and we ask users to provide us with their own inputs that can help us update key parameters and assumptions.  We hope to catalyse users to adapt the model in ways that can increase its value, accuracy, and applications.

18.
F1000Res ; 7: 1641, 2018.
Article in English | MEDLINE | ID: mdl-30647910

ABSTRACT

Recent public health emergencies with outbreaks of influenza, Ebola and Zika revealed that the mechanisms for sharing research data are neither being used, or adequate for the purpose, particularly where data needs to be shared rapidly. A review of research papers, including completed clinical trials related to priority pathogens, found only 31% (98 out of 319 published papers, excluding case studies) provided access to all the data underlying the paper - 65% of these papers give no information on how to find or access the data. Only two clinical trials out of 58 on interventions for WHO priority pathogens provided any link in their registry entry to the background data. Interviews with researchers revealed a reluctance to share data included a lack of confidence in the utility of the data; an absence of academic-incentives for rapid dissemination that prevents subsequent publication and a disconnect between those who are collecting the data and those who wish to use it quickly.  The role of the funders of research needs to change to address this. Funders need to engage early with the researchers and related stakeholders to understand their concerns and work harder to define the more explicitly the benefits to all stakeholders.  Secondly, there needs to be a direct benefit to sharing data that is directly relevant to those people that collect and curate the data. Thirdly more work needs to be done to realise the intent of making data sharing resources more equitable, ethical and efficient.  Finally, a checklist of the issues that need to be addressed when designing new or revising existing data sharing resources should be created. This checklist would highlight the technical, cultural and ethical issues that need to be considered and point to examples of emerging good practice that can be used to address them.

19.
Multivariate Behav Res ; 52(4): 430-444, 2017.
Article in English | MEDLINE | ID: mdl-28429965

ABSTRACT

Specification search problems refer to two important but under-addressed issues in testing for factorial invariance: how to select proper reference indicators and how to locate specific non-invariant parameters. In this study, we propose a two-step procedure to solve these issues. Step 1 is to identify a proper reference indicator using the Bayesian structural equation modeling approach. An item is selected if it is associated with the highest likelihood to be invariant across groups. Step 2 is to locate specific non-invariant parameters, given that a proper reference indicator has already been selected in Step 1. A series of simulation analyses show that the proposed method performs well under a variety of data conditions, and optimal performance is observed under conditions of large magnitude of non-invariance, low proportion of non-invariance, and large sample sizes. We also provide an empirical example to demonstrate the specific procedures to implement the proposed method in applied research. The importance and influences are discussed regarding the choices of informative priors with zero mean and small variances. Extensions and limitations are also pointed out.


Subject(s)
Factor Analysis, Statistical , Models, Statistical , Adult , Aged , Analysis of Variance , Bayes Theorem , Computer Simulation , Data Interpretation, Statistical , Female , Humans , Male , Middle Aged , Young Adult
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