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Romoli M, Caliandro P. Artificial intelligence, machine learning, and reproducibility in stroke research. Eur Stroke J 2024; 9:518-520. [PMID: 39169773 DOI: 10.1177/23969873241275863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/23/2024] Open
Affiliation(s)
- Michele Romoli
- Department of Neurosciences, Bufalini Hospital, AUSL Romagna, Cesena, Italy
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Cottrell D, Wright-Hughes A, Farrin A, Walwyn R, Mughal F, Truscott A, Diggins E, Irving D, Fonagy P, Ougrin D, Stahl D, Wright J. Reducing self-harm in adolescents: the RISA-IPD individual patient data meta-analysis and systematic review. Health Technol Assess 2024:1-42. [PMID: 39024118 DOI: 10.3310/gtnt6331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/20/2024] Open
Abstract
Background Self-harm is common in adolescents and a major public health concern. Evidence for effective interventions is lacking. An individual patient data meta-analysis has the potential to provide more reliable estimates of the effects of therapeutic interventions for self-harm than conventional meta-analyses, to explore which treatments are best suited to certain groups. Method A systematic review and individual patient data meta-analysis of randomised controlled trials of therapeutic interventions to reduce repeat self-harm in adolescents who had a history of self-harm and presented to clinical services. Primary outcome was repetition of self-harm. The methods employed for searches, study screening and selection, and risk of bias assessment are described, with an overview of the outputs of the searching, selection and quality assessment processes. Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidance is followed. Results We identified a total 39 eligible studies, from 10 countries, where we sought Individual Patient Data (IPD), of which the full sample of participants were eligible in 18 studies and a partial sample of participants were eligible in 21 studies. We obtained IPD from 26 studies of 3448 eligible participants. For our primary outcome, repetition of self-harm, only 6 studies were rated as low risk of bias with 10 rated as high risk (although 2 of these were for secondary outcomes only). Conclusions Obtaining individual patient data for meta-analyses is possible but very time-consuming, despite clear guidance from funding bodies that researchers should share their data appropriately. More attention needs to be paid to seeking appropriate consent from study participants for (pseudo) anonymised data-sharing and institutions need to collaborate on agreeing template data-sharing agreements. Researchers and funders need to consider issues of research design more carefully. Our next step is to analyse all the data we have collected to see if it will tell us more about how we might prevent repetition of self-harm in young people. Funding This article presents independent research funded by the National Institute for Health and Care Research (NIHR) Health Technology Assessment programme as award number 17/117/11. A plain language summary of this research article is available on the NIHR Journals Library Website https://doi.org/10.3310/GTNT6331.
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Affiliation(s)
- David Cottrell
- Division of Psychological and Social Medicine, Leeds Institute of Health Sciences, School of Medicine, University of Leeds, Leeds, UK
| | - Alex Wright-Hughes
- Complex Interventions Division, Clinical Trials Research Unit, Leeds Institute of Clinical Trials Research, School of Medicine, University of Leeds, Leeds, UK
| | - Amanda Farrin
- Complex Interventions Division, Clinical Trials Research Unit, Leeds Institute of Clinical Trials Research, School of Medicine, University of Leeds, Leeds, UK
| | - Rebecca Walwyn
- Complex Interventions Division, Clinical Trials Research Unit, Leeds Institute of Clinical Trials Research, School of Medicine, University of Leeds, Leeds, UK
| | - Faraz Mughal
- School of Medicine, Keele University, Keele, UK
- NIHR Greater Manchester Patient Safety Translational Research Centre, Keele University, Keele, UK
| | - Alex Truscott
- Research Department of Clinical, Educational and Health Psychology, University College, London, UK
| | - Emma Diggins
- Division of Psychological and Social Medicine, Leeds Institute of Health Sciences, School of Medicine, University of Leeds, Leeds, UK
| | | | - Peter Fonagy
- Research Department of Clinical, Educational and Health Psychology, University College, London, UK
| | - Dennis Ougrin
- Youth Resilience Unit, WHO Collaborating Centre for Mental Health Services Development, Queen Mary University of London, London, UK
| | - Daniel Stahl
- Institute of Psychiatry Psychology and Neuroscience, King's College London, London, UK
| | - Judy Wright
- Academic Unit of Health Economics, Leeds Institute of Health Sciences, School of Medicine, University of Leeds, Leeds, UK
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Tsabedze N, Naicker RD, Mrabeti S. Efficacy of beta-blockers on blood pressure control and morbidity and mortality endpoints in hypertensives of African ancestry: an individual patient data meta-analysis. Front Cardiovasc Med 2024; 10:1280953. [PMID: 38322274 PMCID: PMC10844441 DOI: 10.3389/fcvm.2023.1280953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Accepted: 12/11/2023] [Indexed: 02/08/2024] Open
Abstract
Introduction Compared with first-line antihypertensives, beta-blockers (BB) have been reported to lower the central aortic blood pressure suboptimally and are associated with increased stroke risk. This observation has not been investigated in hypertensives of African ancestry. We hypothesised that an individual patient data meta-analysis (IPD-MA) on the efficacy of second- or third-generation beta-blockers (STGBBs) in hypertensives of African descent may provide new insights. Methods A single-stage IPD-MA analysed the efficacy of STGBB in lowering the mean arterial blood pressure and reducing the composite outcomes: cardiovascular death, stroke, and myocardial infarction. Results A total of 11,860 participants from four randomised control trials were included in the analysis. Second- or third-generation beta-blockers reduced the mean arterial pressure by 1.75 mmHg [95% confidence interval (CI):1.16-2.33; P < 0.001] in all participants included in the analysis, and by 1.93 mmHg (95% CI: 0.86-3.00; P < 0.001) in hypertensive Africans. In patients with established cardiovascular disease, where the benefits of BB therapy are well established, STGBBs were associated with an adjusted odds ratio of 1.33 (95% CI: 1.06-1.65; P = 0.015) of the composite outcome, most likely due to confounding. Similarly, the risk of total myocardial infarction was 1.76 times higher (95% CI: 1.15-2.68; P = 0.008) in hypertensives of African ancestry on STGBBs. Conclusion The STGBBs reduced the mean arterial pressure comparably to other antihypertensives, and they were not associated with an increased risk of stroke.
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Affiliation(s)
- Nqoba Tsabedze
- Division of Cardiology, Department of Internal Medicine, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - R. Darshni Naicker
- Medical Department, Healthcare Division, Merck Pty Ltd, Modderfontein, South Africa
| | - Sanaa Mrabeti
- Medical Affairs EMEA, Merck Serono Middle East FZ-LLC, Dubai, United Arab Emirates
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Gabelica M, Bojčić R, Puljak L. Many researchers were not compliant with their published data sharing statement: a mixed-methods study. J Clin Epidemiol 2022; 150:33-41. [PMID: 35654271 DOI: 10.1016/j.jclinepi.2022.05.019] [Citation(s) in RCA: 70] [Impact Index Per Article: 35.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 04/12/2022] [Accepted: 05/24/2022] [Indexed: 11/30/2022]
Abstract
OBJECTIVES The objective of the study was to analyze researchers' compliance with their data availability statement (DAS) from manuscripts published in open-access journals with the mandatory DAS. STUDY DESIGN AND SETTING We analyzed all articles from 333 open-access journals published during January 2019 by BioMed Central. We categorized types of the DAS. We surveyed corresponding authors who wrote in the DAS that they would share the data. Consent to participate in the study was sought for all included manuscripts. After accessing raw data sets, we checked whether data were available in a way that enabled reanalysis. RESULTS Of 3556 analyzed articles, 3416 contained the DAS. The most frequent DAS category (42%) indicated that the data sets are available on reasonable request. Among 1792 manuscripts in which the DAS indicated that authors are willing to share their data, 1669 (93%) authors either did not respond or declined to share their data with us. Among 254 (14%) of 1792 authors who responded to our query for data sharing, only 123 (6.8%) provided the requested data. CONCLUSION Even when authors indicate in their manuscript that they will share data upon request, the compliance rate is the same as for authors who do not provide the DAS, suggesting that the DAS may not be sufficient to ensure data sharing.
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Affiliation(s)
- Mirko Gabelica
- Department for otorhinolaryngology, with head and neck surgery, University Hospital Centre Split, Spinčićeva 1, 21000, Split, Croatia
| | - Ružica Bojčić
- Institute of Emergency Medicine of Karlovac County, Ul. Dr. Vladka Mačeka 48, 47000, Karlovac, Croatia
| | - Livia Puljak
- Center for Evidence-Based Medicine and Health Care, Catholic University of Croatia, Ilica 242, 10000, Zagreb, Croatia.
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