Research methodology

研究方法
  • 文章类型: Journal Article
    目的:共识方法对于制定临床指南至关重要。不同的方法,如德尔菲和名义分组技术,是常用的,但是缺乏有关如何有效实施它们的详细说明。调查旨在探讨主席的意见和态度,关于指南制定过程中共识方法的关键要素的小组和工作组。
    方法:我们使用横断面设计进行了这项研究,并向利益相关者发送了结构化问卷,包括椅子,小组成员,和工作组的参与者,通过流行的手机应用微信。我们使用目的性抽样和雪球抽样的组合选择了参与者。问卷收集了人口统计信息,经验,意见,以及对共识方法和指导方针制定的担忧。
    结果:样本包括代表31个省或市的290名参与者。其中,大多数受访者(n=107,36.9%)来自北京。大多数参与者,具体为211(72.76%),拥有高级职称,186人(64.14%)遵守现行准则。德尔菲法是最常用的共识法(n=132,42.31%),但受访者对它只有初步了解(n=147,47.12%)。共识过程还揭示了药物经济学家参与的不足,病人,和护士。
    结论:共识方法必须在指南制定过程中标准化和一致使用。这项研究的结果提供了对不同角色的见解,以及在指南制定过程中应用共识过程的更有效方法。
    Consensus methods are crucial in developing clinical guidelines. Different methods, such as the Delphi and nominal group techniques, are commonly used, but there is a lack of detailed instructions on how to implement them effectively. The survey aims to explore the opinions and attitudes of the chair, panel and working group on the critical elements of the consensus methods during guideline development.
    We used a cross-sectional design to conduct this study and sent a structured questionnaire to stakeholders, including the chair, panel members, and working group participants, through the popular mobile phone application WeChat.We selected participants using a combination of purposive and snowball sampling. The questionnaire gathered information on demographics, experiences, opinions, and concerns regarding consensus methods and guideline development.
    The sample comprised 290 participants representing 31 provinces or municipalities. Among them, the most significant number of respondents (n = 107, 36.9%) were from Beijing. Most participants, specifically 211 (72.76%), held senior professional titles, while 186 (64.14%) adhered to ongoing guidelines. The Delphi method was the most commonly used consensus method (n = 132, 42.31%), but the respondents had only a preliminary understanding of it (n = 147, 47.12%). The consensus process also revealed the insufficiency of involving pharmacoeconomists, patients, and nurses.
    Consensus methods have to be standardised and used consistently in the guideline development process. The findings of this study offer insights into diverse roles and more effective ways to apply the consensus process during guideline development.
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  • 文章类型: Journal Article
    这篇观点论文借鉴了虚拟田野调查中的欺骗经验,并考虑了虚拟人种学的设计方法的含义。随着定性实地工作越来越多地在虚拟空间内并通过虚拟手段进行,研究人员在数据收集和验证过程中面临着严重的困境。这些困境之一涉及确保数据有效性和真实性,如果遇到对自己的身份具有欺骗性的研究对象,经验,或与研究领域的关系。这篇透视论文提供了关于阐明虚拟空间中欺骗的性质和可能性的具体指南,识别欺骗性数据,以及如何处理欺骗性数据以保持数据的有效性和透明度。
    This Perspective Essay draws from an experience of deception in virtual fieldwork and considers implications for those designing methodologies for virtual ethnographies. As qualitative field work increasingly takes place within virtual spaces and through virtual means, researchers are faced with critical dilemmas in the processes of data gathering and verification. One of these dilemmas concerns ensuring data validity and facticity if encountered with research subjects who are deceptive about their identity, experiences, or relationship to the field of research. This Perspective Essay offers specific guidelines concerning articulating the nature and possibilities of deception in virtual spaces, identifying deceptive data, and what to do with deceptive data in order to maintain data validity and transparency.
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  • 文章类型: Journal Article
    当涉及到法律背景下的事实问题时,特别是关于衡量的问题,协会,因果关系-法院应采用应用科学的普通标准。应用科学通常沿着一条道路发展,该道路从有关某些自然过程的基础科学发现发展到形成该过程如何工作以及导致其失败的理论,对一项旨在评估的发明的开发,修复,或改进过程,对仪器动作的预测规范,以及,最后,经验验证,以确定该工具达到预期效果。这些元素在医学和工程应用科学的文化中非常突出和深入地嵌入其中,两者都主要来自基础科学。然而,作为大多数法医学学科基础的发明几乎没有基础科学的根源,他们没有健全的理论来证明他们预测的行为或实证检验的结果来证明他们的工作是宣传的。受流行病学因果推断的主要框架“BradfordHill指南”的启发,我们提出了四个可用于确定法医比较方法有效性的指南。此框架不旨在作为建立最低有效性阈值的清单,因为没有魔法公式决定特定学科或假设何时超过必要的阈值。我们通过考虑枪支和工具标记检查的纪律来说明如何应用这些准则。
    When it comes to questions of fact in a legal context-particularly questions about measurement, association, and causality-courts should employ ordinary standards of applied science. Applied sciences generally develop along a path that proceeds from a basic scientific discovery about some natural process to the formation of a theory of how the process works and what causes it to fail, to the development of an invention intended to assess, repair, or improve the process, to the specification of predictions of the instrument\'s actions and, finally, empirical validation to determine that the instrument achieves the intended effect. These elements are salient and deeply embedded in the cultures of the applied sciences of medicine and engineering, both of which primarily grew from basic sciences. However, the inventions that underlie most forensic science disciplines have few roots in basic science, and they do not have sound theories to justify their predicted actions or results of empirical tests to prove that they work as advertised. Inspired by the \"Bradford Hill Guidelines\"-the dominant framework for causal inference in epidemiology-we set forth four guidelines that can be used to establish the validity of forensic comparison methods generally. This framework is not intended as a checklist establishing a threshold of minimum validity, as no magic formula determines when particular disciplines or hypotheses have passed a necessary threshold. We illustrate how these guidelines can be applied by considering the discipline of firearm and tool mark examination.
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  • 文章类型: Journal Article
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  • 文章类型: Journal Article
    体育科学中进行的大多数评论都使用了系统评论和荟萃分析(PRISMA)的首选报告项目建议的一般项目。由于每个知识领域的特定要求,PRISMA的一些修改是必要的,以优化系统审查的过程,因此,这类研究提供的结论的质量。因此,这项工作旨在使PRISMA适应为在体育科学中进行系统评价提供具体的指导方针.方法论标准(搜索策略,数据库,和资格)和结果部分(流程图和研究内容)根据以前的研究进行了调整,并在设计新指南时增加了一些新的考虑因素。我们编制了体育科学研究人员建议的28个项目,并包括两个新项目:(i)人口/问题(即,年龄,level,和国家)和(Ii)整个培训过程,在组间进行监测和比较(例如,总训练负荷)。为了最大限度地利用本文件,我们鼓励人们结合PRISMA声明阅读它。PRISMA和适应体育科学的PRISMA之间的主要区别与注册有关,搜索策略,流程图,和结果。新指南的应用可以改善提供给读者的信息,并使其更容易概括和比较体育科学中的结果。
    Most of the reviews carried out in sports science have used the general items suggested by Preferred Reporting Items for Systematic Reviews and Meta-analysis (PRISMA). Due to the specific requirements of each knowledge area, several modifications of the PRISMA are necessary to optimize the process of the systematic reviews and, in consequence, the quality of the conclusions provided in this type of study. Therefore, this work aimed to adapt PRISMA to provide specific guidelines to carry out systematic reviews in sports science. The methodology criteria (search strategy, databases, and eligibility) and the results section (flow diagrams and study contents) were adapted based on previous studies, and several new considerations were added to design the new guidelines. We compiled 28 items suggested by sports science researchers and included two new items: (i) population/problem (i.e., age, level, and country) and (ii) the entire training process, which is monitored and compared between groups (e.g., total training load). To maximize the benefit of this document, we encourage people to read it in conjunction with the PRISMA statement. The main differences between PRISMA and the PRISMA adapted to sports science were related to registration, search strategy, flow diagrams, and results. Application of the new guidelines could improve the information provided to readers and make it easier to generalize and compare the results in sports science.
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  • 文章类型: Journal Article
    目的:系统评价和荟萃分析(SRs/MA)旨在成为综合信息和指导实践的严格研究方法。出版物的增加与质量问题以及朝着改进报告和方法的标准迈进并行。为了告知图书馆员向SR/MA团队提供的指导,本研究从机构样本中评估在线期刊作者指南,以确定这些作者指南是否涉及SR/MA方法学质量.
    方法:通过WebofScience核心合集(Clarivate)搜索确定了2014-2019年由一家机构下属的作者发布的SRs/MA。AMSTAR2清单用于开发针对作者指南中SR/MA方法学质量措施的封闭问题的评估工具,增加了关于一般作者指南的问题。多个审阅者完成了评估。
    结果:评估了141种期刊的作者指南。不到20%的人解决了至少一项针对SR/MA方法学质量的评估措施。除美国医学会外,同一出版商的期刊之间的作者指南差异很大,它一贯提供深入的作者指南。归一化的特征因子和文章影响分数并未表明作者的指南广度。
    结论:机构样本中的大多数作者指南均未涉及SR/MA方法学质量。在与着手SRs/MA的团队协商时,图书馆员不应期望作者指南提供有关目标期刊要求的详细信息。图书馆员应建议团队遵循既定的SR/MA标准,联系期刊工作人员,并回顾以前发表在期刊上的SRs/MA。
    OBJECTIVE: Systematic reviews and meta-analyses (SRs/MAs) are designed to be rigorous research methodologies that synthesize information and inform practice. An increase in their publication runs parallel to quality concerns and a movement toward standards to improve reporting and methodology. With the goal of informing the guidance librarians provide to SR/MA teams, this study assesses online journal author guidelines from an institutional sample to determine whether these author guidelines address SR/MA methodological quality.
    METHODS: A Web of Science Core Collection (Clarivate) search identified SRs/MAs published in 2014-2019 by authors affiliated with a single institution. The AMSTAR 2 checklist was used to develop an assessment tool of closed questions specific to measures for SR/MA methodological quality in author guidelines, with questions added about author guidelines in general. Multiple reviewers completed the assessment.
    RESULTS: The author guidelines of 141 journals were evaluated. Less than 20% addressed at least one of the assessed measures specific to SR/MA methodological quality. There was wide variation in author guidelines between journals from the same publisher apart from the American Medical Association, which consistently offered in-depth author guidelines. Normalized Eigenfactor and Article Influence Scores did not indicate author guideline breadth.
    CONCLUSIONS: Most author guidelines in the institutional sample did not address SR/MA methodological quality. When consulting with teams embarking on SRs/MAs, librarians should not expect author guidelines to provide details about the requirements of the target journals. Librarians should advise teams to follow established SR/MA standards, contact journal staff, and review SRs/MAs previously published in the journal.
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  • 文章类型: Journal Article
    有一个新兴的研究评估针灸癌症的各种症状和副作用相关的治疗。根据STRICTA(针灸临床试验干预报告标准)指南,进行了系统评价,以检查已发表的癌症针灸研究的报告质量。
    系统评价已发表的针灸治疗癌症症状及其相关副作用的研究。搜索的数据库是:Medline,CINAHL,Cochrane(所有数据库),Scopus,和PubMed从成立到2014年12月。临床试验,试点/可行性研究,观察性研究,并纳入案例研究。仅包括以英文发表的完整期刊论文。使用STRICTA指南评估报告质量。每篇论文都由两名独立审稿人进行评估,与第三审稿人裁定的分歧。
    确定了88篇符合纳入标准的论文。在对照或比较组(n=47)的试验中报告的STRICTA项目的中位数为17个中的14个(范围为8至17,IQR4)。对于没有对照或比较臂的研究,中位数为15个中的11个(范围5至15,IQR3)。报告的主要弱点包括治疗的其他组成部分的细节,以及针灸师管理治疗的细节。
    尽管在针灸研究中广泛使用STRICTA指南,对于一些特定项目,依从性仍然很差。需要进一步的研究来探索作者未能报告这些项目的原因,并制定策略以提高对准则的遵守程度。
    There has been a burgeoning of research evaluating acupuncture for various symptoms of cancer and the side-effects associated with its treatment. A systematic review was conducted to examine the quality of reporting in published studies of acupuncture in cancer according to the STRICTA (STandards for Reporting Interventions in Clinical Trials of Acupuncture) guidelines.
    Systematic review of published research of acupuncture for symptoms of cancer and the side-effects associated with its treatment. Databases searched were: Medline, CINAHL, Cochrane (all databases), Scopus, and PubMed from their inception to December 2014. Clinical trials, pilot/feasibility studies, observational studies, and case studies were included. Only full journal papers published in English were included. The quality of reporting was evaluated using STRICTA guidelines. Each included paper was assessed by two independent reviewers, with disagreements adjudicated by a third reviewer.
    88 papers were identified which met the inclusion criteria. The median number of STRICTA items reported in trials with a control or comparator arm (n=47) was 14 out of 17 (range 8 to 17, IQR 4). For studies without a control or comparator arm the median was 11 out of a possible 15 (range 5 to 15, IQR 3). Key weaknesses in reporting included details of other components of treatments, and details of the acupuncturist administering treatments.
    Despite the widespread use of the STRICTA guidelines in acupuncture research, adherence remains poor for a few specific items. Further research is required to explore the reasons why authors fail to report those items, and to develop strategies to improve the adherence to the guidelines.
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  • 文章类型: Journal Article
    通过在试验中迭代地将一个结果“事件”更改为“非事件”直到相关的p值超过0.05来计算脆弱性指数(FI)。
    本研究旨在探讨ACCF/AHA/SCAI指南在ST段抬高型心肌梗死治疗中引用的试验终点的FI和脆性商(FQ)。其次,我们评估了这些特定结局的事后威力和偏倚风险,以及关于脆弱性测量的威力充分和不足的研究之间是否存在差异.
    对指南中引用的所有引文进行纳入标准筛选。然后计算所有纳入试验的FI和FQ。Cochrane“偏倚风险”工具2.0用于评估纳入试验中偏倚的可能性和来源。
    纳入42项随机对照试验进行评估。平均FI为10,FQ为0.0055。七项试验有很高的偏倚风险,都是由于随机化过程中的偏见。15项试验被发现动力不足。与动力不足的研究相比,动力不足的研究具有更高的FI和FQ。
    我们的研究结果支持在未来的随机对照试验方法中使用FI和FQ分析以及功效分析。通过对FI和FQ的理解和报告,研究的证据可以随时获得,并迅速消除一些读者对可能的研究局限性的担忧。
    The fragility index (FI) is calculated by iteratively changing one outcome \"event\" to a \"non-event\" within a trial until the associated p-value exceeds 0.05.
    To investigate the FI and fragility quotient (FQ) of trial endpoints referenced in the ACCF/AHA/SCAI guidelines in the management of ST-elevation myocardial infarctions. Secondarily, we assess the post-hoc power and risk of bias for these specific outcomes and whether differences exist between adequately and inadequately powered studies on fragility measures.
    All citations referenced in the guideline were screened for inclusion criteria. The FI and FQ for all included trials were then calculated. The Cochrane \'risk of bias\' Tool 2.0 was used to evaluate the likelihood and sources of bias in the included trials.
    Forty-two randomized controlled trials were included for assessment. The median FI was 10 with a FQ of 0.0055. Seven trials were at a high risk of bias, all due to bias in the randomization process. Fifteen trials were found to be underpowered. Adequately powered studies had higher FIs and FQs compared to underpowered studies.
    Our findings support the use of FI and FQ analyses with power analyses in future methodology of randomized control trials. With understanding and reporting of FI and FQ, evidence of studies can be readily available and quickly eliminate some readers\' concern for possible study limitations.
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  • 文章类型: Journal Article
    Guidelines for clinical trials of acupuncture are scarce, particularly in their guidance on choosing an adequate control in an acupuncture trial. This guideline was developed to address the research methodology for clinical research in acupuncture which contains the essential elements to be considered in the design, preparation and reporting of an acupuncture RCT. Particularly, investigators focused on the control design because of the unique feature of acupuncture. As one size does not fit all, one single design cannot answer all research questions. Therefore, we recommend that the clinical questions be answered in different stages of trials by choosing the appropriate control or comparator. This concept is adapted from classical drug trials developed by the Food and Drug Administration (FDA) of USA in which trials are staged in four phages in order to address different research questions. From the points listed above, this guideline offers the specific recommendations in an acupuncture RCT.
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  • 文章类型: Journal Article
    临床实践指南(CPG)的系统评价(SRs)是独特的知识综合,需要量身定制的方法,和更大的主观性,与临床流行病学中的其他SR相比,设计和执行。我们为评论作者提供了有关如何设计和进行严格的CPG方法SRs的结构化指导。
    一份指导文件,概述了进行CPGSR所有阶段的建议方法。我们提供了发表的评论所使用的方法的具体例子,包括一个案例样本,展示了这种方法是如何应用于我们自己的CPGSR的。
    在审查设计和实施的所有方面,必须考虑审查背景和CPG作为研究综合或临床指导陈述的独特特征。研究人员应制定“PICAR”声明,以帮助形成和关注研究问题和资格标准,使用经过验证的评估工具评估CPG质量,和提取,分析,并以令人信服和透明的方式汇总数据。
    CPG的SR可用于系统地识别,评估,并总结临床课题的指导现状。这些类型的审查通常需要在方法上进行调整,以确保其目标和时间表得到有效和高效的解决;然而,它们都应该符合SR的标准,遵循严格的方法论方法,并坚持透明的报告做法。
    Systematic reviews (SRs) of clinical practice guidelines (CPGs) are unique knowledge syntheses that require tailored approaches to, and greater subjectivity in, design and execution compared with other SRs in clinical epidemiology. We provide review authors structured direction on how to design and conduct methodologically rigorous SRs of CPGs.
    A guidance paper outlining suggested methodology for conducting all stages of an SR of CPGs. We present concrete examples of approaches used by published reviews, including a case exemplar demonstrating how this methodology was applied to our own SR of CPGs.
    Review context and the unique characteristics of CPGs as research syntheses or clinical guidance statements must be considered in all aspects of review design and conduct. Researchers should develop a \"PICAR\" statement to help form and focus on the research question(s) and eligibility criteria, assess CPG quality using a validated appraisal tool, and extract, analyze, and summarize data in a way that is cogent and transparent.
    SRs of CPGs can be used to systematically identify, assess, and summarize the current state of guidance on a clinical topic. These types of reviews often require methodological tailoring to ensure that their objectives and timelines are effectively and efficiently addressed; however, they should all meet the criteria for an SR, follow a rigorous methodological approach, and adhere to transparent reporting practices.
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