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https://www.readbyqxmd.com/read/29786975/a-comparison-of-one-stage-vs-two-stage-individual-patient-data-meta-analysis-methods-a-simulation-study
#1
Evangelos Kontopantelis
BACKGROUND: Individual patient data (IPD) meta-analysis allows for the exploration of heterogeneity and can identify subgroups that most benefit from an intervention (or exposure), much more successfully than meta-analysis of aggregate data. One-stage or two-stage IPD meta-analysis is possible, with the former using mixed-effects regression models and the latter obtaining study-estimates through simpler regression models before aggregating using standard meta-analysis methodology. However, a comprehensive comparison of the two methods, in practice, is lacking...
May 22, 2018: Research Synthesis Methods
https://www.readbyqxmd.com/read/29786957/statistical-approaches-to-adjusting-weights-for-dependent-arms-in-network-meta-analysis
#2
Yu-Xuan Su, Yu-Kang Tu
Network meta-analysis compares multiple treatments in terms of their efficacy and harm by including evidence from randomized controlled trials. Most clinical trials use parallel design, where patients are randomly allocated to different treatments and receive only one treatment. However, some trials use within person designs such as split-body, split-mouth and cross-over designs, where each patient may receive more than one treatment. Data from treatment arms within these trials are no longer independent, so the correlations between dependent arms need to be accounted for within the statistical analyses...
May 22, 2018: Research Synthesis Methods
https://www.readbyqxmd.com/read/29786918/novel-genes-and-insights-in-complete-asthma-remission
#3
Judith M Vonk, Maartje A E Nieuwenhuis, F Nicole Dijk, Anne Boudier, Valerie Siroux, Emmanuelle Bouzigon, Nicole Probst-Hensch, Medea Imboden, Dirk Keidel, Don Sin, Yohan Bossé, Ke Hao, Maarten van den Berge, Alen Faiz, Gerard H Koppelman, Dirkje S Postma
BACKGROUND: Asthma is a chronic respiratory disease without a cure, though there exists spontaneous remission. Genome wide association(GWA) studies have pinpointed genes associated with asthma development, but did not investigate asthma remission. OBJECTIVES: We performed a GWA study to develop insights in asthma remission. METHODS: Clinical remission (ClinR) was defined by absence of asthma treatment and wheezing in the last year and asthma attacks in the last 3 years, and complete remission (ComR) similarly but additionally with normal lung function and absence of bronchial hyperresponsiveness (BHR)...
May 22, 2018: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29786874/meta-analysis-of-the-association-of-alcohol-related-social-media-use-with-alcohol-consumption-and-alcohol-related-problems-in-adolescents-and-young-adults
#4
REVIEW
Brenda L Curtis, Samantha J Lookatch, Danielle E Ramo, James R McKay, Richard S Feinn, Henry R Kranzler
Despite the pervasive use of social media by young adults, there is comparatively little known about whether, and how, engagement in social media influences this group's drinking patterns and risk of alcohol-related problems. We examined the relations between young adults' alcohol-related social media engagement (defined as the posting, liking, commenting, and viewing of alcohol-related social media content) and their drinking behavior and problems. We conducted a systematic review and meta-analysis of studies evaluating the association of alcohol consumption and alcohol-related problems with alcohol-related social media engagement...
May 22, 2018: Alcoholism, Clinical and Experimental Research
https://www.readbyqxmd.com/read/29786829/meta-analysis-examining-the-epidemiology-of-clozapine-associated-neutropenia
#5
N Myles, H Myles, S Xia, M Large, S Kisely, C Galletly, R Bird, D Siskind
BACKGROUND: Clozapine is associated with life-threatening neutropenia. There are no previous meta-analyses of the epidemiology of clozapine-associated neutropenia. OBJECTIVES: To determine the cumulative incidence of mild, moderate and severe neutropenia, incidence of death related to severe neutropenia, case fatality rate of neutropenia and the longitudinal incidence of neutropenia following exposure to clozapine. DATA SOURCES: A systematic search of Medline, EMBASE and PsycINFO using search terms [clozapine OR clopine OR zaponex OR clozaril] AND [neutropenia OR agranulocytosis]...
May 21, 2018: Acta Psychiatrica Scandinavica
https://www.readbyqxmd.com/read/29786633/the-effect-of-nitrate-supplementation-on-exercise-tolerance-and-performance-a-systematic-review-and-meta-analysis
#6
Gavin P Van De Walle, Matthew D Vukovich
Van De Walle, GP and Vukovich, MD. The effect of nitrate supplementation on exercise tolerance and performance: a systematic review and meta-analysis. J Strength Cond Res 32(6): 1796-1808, 2018-The purpose of this article was to systematically review the current literature and evaluate the overall efficacy of nitrate supplementation on exercise tolerance and performance by meta-analysis. Studies were eligible for inclusion if they met the following criteria: (a) were an experimental trial published in an English peer-reviewed journal; (b) compared the effects of inorganic nitrate consumption with a non-bioactive supplement control or placebo; (c) used a quantifiable measure of exercise performance; and (d) was carried out in apparently healthy participants without disease...
June 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29786581/development-of-informational-communicative-system-created-to-improve-medical-help-for-family-medicine-doctors
#7
Vladyslav A Smiianov, Natalia O Dryha, Olha I Smiianova, Victor K Obodyak, Tatyana O Zudina
OBJECTIVE: Introduction: Today mobile health`s protection service has no concrete meaning. As an research object it was called mHealth and named by Global observatory of electronic health`s protection as "Doctor and social health practice that can be supported by any mobile units (mobile phones or smartphones), units for patient`s health control, personal computers and other units of non-wired communication". An active usage of SMS in programs for patients` cure regimen keeping was quiet predictable...
2018: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/29786549/pluripotent-stem-cells-induction-and-self-renewal
#8
REVIEW
R Abu-Dawud, N Graffmann, S Ferber, W Wruck, J Adjaye
Pluripotent stem cells (PSCs) lie at the heart of modern regenerative medicine due to their properties of unlimited self-renewal in vitro and their ability to differentiate into cell types representative of the three embryonic germ layers-mesoderm, ectoderm and endoderm. The derivation of induced PSCs bypasses ethical concerns associated with the use of human embryonic stem cells and also enables personalized cell-based therapies. To exploit their regenerative potential, it is essential to have a firm understanding of the molecular processes associated with their induction from somatic cells...
July 5, 2018: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/29786530/meta-analysis-of-safety-and-efficacy-of-oral-anti-coagulants-in-patients-requiring-catheter-ablation-for-atrial-fibrillation
#9
Hammad Rahman, Safi U Khan, Michael DePersis, Tehseen Hammad, Fahad Nasir, Edo Kaluski
BACKGROUND: The ideal oral anticoagulant agent during catheter ablation (CA) for atrial fibrillation (AF) remained unclear. HYPOTHESIS: Novel oral anticoagulants (NOACs) are safer and effective compared to uninterrupted vitamin K antagonists (U-VKA) among patients requiring CA for AF. METHODS: Four randomized controlled trials (RCTs) and 9 observational studies (OS) were selected using PubMed/Medline, EMBASE and the CENTRAL data bases (Inception-December-2017)...
May 9, 2018: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/29786495/occupational-moral-injury-and-mental-health-systematic-review-and-meta-analysis
#10
Victoria Williamson, Sharon A M Stevelink, Neil Greenberg
BACKGROUND: Many people confront potentially morally injurious experiences (PMIEs) in the course of their work which can violate deeply held moral values or beliefs, putting them at risk for psychological difficulties (e.g. post-traumatic stress disorder (PTSD), depression, etc.).AimsWe aimed to assess the effect of moral injury on mental health outcomes. METHOD: We conducted a systematic review and meta-analysis to assess the association between work-related PMIEs and mental health disorders...
June 2018: British Journal of Psychiatry: the Journal of Mental Science
https://www.readbyqxmd.com/read/29786159/gestational-dyslipidaemia-and-adverse-birthweight-outcomes-a-systematic-review-and-meta-analysis
#11
REVIEW
J Wang, D Moore, A Subramanian, K K Cheng, K A Toulis, X Qiu, P Saravanan, M J Price, K Nirantharakumar
BACKGROUND: Low and high birthweight is known to increase the risk of acute and longer-term adverse outcomes, such as stillbirth, infant mortality, obesity, type 2 diabetes and cardiovascular diseases. Gestational dyslipidaemia is associated with a numbers of adverse birth outcomes, but evidence regarding birthweight is still inconsistent to reliably inform clinical practice and treatment recommendations. OBJECTIVE: The aim of this study was to explore the relationship between maternal gestational dyslipidaemia and neonatal health outcomes, namely, birthweight, metabolic factors and inflammatory parameters...
May 21, 2018: Obesity Reviews: An Official Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/29786126/prophylactic-central-compartment-neck-dissection-in-papillary-thyroid-cancer-and-effect-on-locoregional-recurrence
#12
David T Hughes, Jennifer E Rosen, Douglas B Evans, Elizabeth Grubbs, Tracy S Wang, Carmen C Solórzano
BACKGROUND: Prophylactic central compartment neck dissection (pCCND) in addition to total thyroidectomy (TT) includes removal of central compartment lymph nodes in the absence of clinical involvement on preoperative and intraoperative evaluation. The data regarding the influence of pCCND on oncologic outcomes and surgical complication rates is mixed and, therefore, is the focus of this analysis. METHODS: A systematic review of the literature on total thyroidectomy with prophylactic central compartment neck dissection (TT + pCCND) from January 1990 to October 2017 identified 221 abstracts of which 17 met inclusion criteria and were reviewed (1 randomized-control trial, 13 retrospective cohort studies, and 3 meta-analyses)...
May 21, 2018: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/29786050/diagnostic-performance-of-intestinal-fusobacterium-nucleatum-in-colorectal-cancer-a-meta-analysis
#13
Bo-Jian Peng, Chuang-Yu Cao, Wei Li, Yong-Jian Zhou, Yuan Zhang, Yu-Qiang Nie, Yan-Wen Cao, Yu-Yuan Li
Background: Increasing evidence has supported the link of intestinal Fusobacterium nucleatum infection to colorectal cancer (CRC). However, the value of F. nucleatum as a biomarker in CRC detection has not been fully defined. In order to reduce the random error and bias of individual research, this meta-analysis aimed to evaluate the diagnostic performance of intestinal F. nucleatum in CRC patients and provide evidence-based data to clinical practice. Methods: An article search was performed from PubMed, Embase, Cochrane Library, and Web of Science databases up to December 2017, using the following key words: "Fusobacterium nucleatum", "Fusobacterium spp...
June 5, 2018: Chinese Medical Journal
https://www.readbyqxmd.com/read/29785952/diagnostic-accuracy-of-point-of-care-natriuretic-peptide-testing-for-chronic-heart-failure-in-ambulatory-care-systematic-review-and-meta-analysis
#14
Kathryn S Taylor, Jan Y Verbakel, Benjamin G Feakins, Christopher P Price, Rafael Perera, Clare Bankhead, Annette Plüddemann
OBJECTIVE: To assess the diagnostic accuracy of point-of-care natriuretic peptide tests in patients with chronic heart failure, with a focus on the ambulatory care setting. DESIGN: Systematic review and meta-analysis. DATA SOURCES: Ovid Medline, Cochrane Central Register of Controlled Trials, Cochrane Database of Systematic Reviews, Database of Abstracts of Reviews of Effects, Embase, Health Technology Assessment Database, Science Citation Index, and Conference Proceedings Citation Index until 31 March 2017...
May 21, 2018: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/29785793/outcomes-associated-with-fetal-parvovirus-b19-infection-a-systematic-review-and-meta-analysis
#15
REVIEW
Francesca Bascietto, Marco Liberati, Daniela Murgano, Danilo Buca, Antonia Iacovelli, Maria Elena Flacco, Lamberto Manzoli, Alessandra Familiari, Giovanni Scambia, Francesco D'Antonio
OBJECTIVE: To explore the outcome of fetuses affected by congenital Parvovirus B19 (PB19) Infection. METHODS: The outcomes observed were: miscarriage, perinatal death (PND), intra-uterine death (IUD), neonatal death (NND), spontaneous resolution of hydrops or fetal anemia, intra-uterine transfusion (IUT), resolution of hydrops or anemia after transfusion, fetal loss following transfusion, abnormal brain scan after birth, abnormal neurodevelopmental outcome. All the observed outcomes were reported in fetuses presenting and in those not presenting signs of hydrops on ultrasound...
May 22, 2018: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/29785788/effects-of-levosimendan-on-mortality-in-patients-undergoing-cardiac-surgery-a-systematic-review-and-meta-analysis
#16
Peili Chen, Xiaoqiang Wu, Zhiwei Wang, Zhenya Li, Xiangyong Tian, Junpeng Wang, Tianzhong Yan
PURPOSE: We sought to determine the impact of levosimendan on mortality following cardiac surgery based on large-scale randomized controlled trials (RCTs). METHODS: We searched PubMed, Web of Science, Cochrane databases, and ClinicalTrials.gov for RCTs published up to December 2017, on levosimendan for patients undergoing cardiac surgery. RESULTS: A total of 25 RCTs enrolling 2960 patients met the inclusion criteria; data from 15 placebo-controlled randomized trials were included for meta-analysis...
May 21, 2018: Journal of Cardiac Surgery
https://www.readbyqxmd.com/read/29785685/network-meta-analysis-an-introduction-for-pharmacists
#17
Yina Xu, Mohamed Amine Amiche, Mina Tadrous
Network meta-analysis is a new tool used to summarize and compare studies for multiple interventions, irrespective of whether these interventions have been directly evaluated against each other. Network meta-analysis is quickly becoming the standard in conducting therapeutic reviews and clinical guideline development. However, little guidance is available to help pharmacists review network meta-analysis studies in their practice. Major institutions such as the Cochrane Collaboration, Agency for Healthcare Research and Quality, Canadian Agency for Drugs and Technologies in Health, and National Institute for Health and Care Excellence Decision Support Unit have endorsed utilizing network meta-analysis to establish therapeutic evidence and inform decision making...
May 21, 2018: International Journal of Clinical Pharmacy
https://www.readbyqxmd.com/read/29785654/a-systematic-review-and-meta-analysis-of-the-use-of-resuscitative-endovascular-balloon-occlusion-of-the-aorta-in-the-management-of-major-exsanguination
#18
REVIEW
B L S Borger van der Burg, Thijs T C F van Dongen, J J Morrison, P P A Hedeman Joosten, J J DuBose, T M Hörer, R Hoencamp
BACKGROUND: Circulatory collapse is a leading cause of mortality among traumatic major exsanguination and in ruptured aortic aneurysm patients. Approximately 40% of patients die before hemorrhage control is achieved. Resuscitative endovascular balloon occlusion of the aorta (REBOA) is an adjunct designed to sustain the circulation until definitive surgical or endovascular repair. A systematic review was conducted for the current clinical use of REBOA in patients with hemodynamic instability and to discuss its potential role in improving prehospital and in-hospital outcome...
May 21, 2018: European Journal of Trauma and Emergency Surgery: Official Publication of the European Trauma Society
https://www.readbyqxmd.com/read/29785631/eating-disorders-risk-among-medical-students-a-global-systematic-review-and-meta-analysis
#19
REVIEW
Haitham Jahrami, Mai Sater, Ahmed Abdulla, Mo'ez Al-Islam Faris, Ahmed AlAnsari
PURPOSE: Medical students appear to be a high-risk group to develop psychological problems including eating disorders (ED). The prevalence estimates of ED risk vary greatly between studies. This systematic review and meta-analysis was done to estimate the prevalence of ED risk among medical students. METHODS: An electronic search of EMBASE, MEDLINE, ProQuest and Google Scholar was conducted. Studies that reported the prevalence of ED risk among medical students and were published in English peer-reviewed journals between 1982 and 2017 were included...
May 21, 2018: Eating and Weight Disorders: EWD
https://www.readbyqxmd.com/read/29785580/a-comprehensive-review-and-meta-analysis-of-risk-factors-for-statin-induced-myopathy
#20
REVIEW
Khoa A Nguyen, Lang Li, Deshun Lu, Aida Yazdanparast, Lei Wang, Rolf P Kreutz, Elizabeth C Whipple, Titus K Schleyer
PURPOSE: To aid prescribers in assessing a patient's risk for statin-induced myopathy (SIM), we performed a comprehensive review of currently known risk factors and calculated aggregated odds ratios for each risk factor through a meta-analysis. METHODS: This meta-analysis was done through four phases: (1) Identification of the relevant primary literature; (2) abstract screening using inclusion and exclusion criteria; (3) detailed review and data extraction; and (4) synthesis and statistical analysis...
May 22, 2018: European Journal of Clinical Pharmacology
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