Meta-Analysis of Controlled Clinical Trials

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Author :
Publisher : John Wiley & Sons
ISBN 13 : 0470854197
Total Pages : 352 pages
Book Rating : 4.4/5 (78 download)

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Book Synopsis Meta-Analysis of Controlled Clinical Trials by : Anne Whitehead

Download or read book Meta-Analysis of Controlled Clinical Trials written by Anne Whitehead and published by John Wiley & Sons. This book was released on 2003-01-17 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the last twenty years there has been a dramatic upsurge in the application of meta-analysis to medical research. This has mainly been due to greater emphasis on evidence-based medicine and the need for reliable summaries of the vast and expanding volume of clinical research. At the same time there have been great strides in the development and refinement of the associated statistical methodology. This book describes the planning, conduct and reporting of a meta-analysis as applied to a series of randomized controlled clinical trials. * The various approaches are presented within a general unified framework. * Meta-analysis techniques are described in detail, from their theoretical development through to practical implementation. * Each topic discussed is supported by detailed worked examples. * A comparison of fixed and random effects approaches is included, as well as a discussion of Bayesian methods and cumulative meta-analysis. * Fully documented programs using standard statistical procedures in SAS are available on the Web. Ideally suited for practising statisticians and statistically-minded medical professionals, the book will also be of use to graduate students of medical statistics. The book is a self-contained and comprehensive account of the subject and an essential purchase for anyone involved in clinical trials.

Meta-Analysis of Controlled Clinical Trials

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Author :
Publisher : John Wiley & Sons
ISBN 13 : 9780471983705
Total Pages : 360 pages
Book Rating : 4.9/5 (837 download)

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Book Synopsis Meta-Analysis of Controlled Clinical Trials by : Anne Whitehead

Download or read book Meta-Analysis of Controlled Clinical Trials written by Anne Whitehead and published by John Wiley & Sons. This book was released on 2002-08-16 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the last twenty years there has been a dramatic upsurge in the application of meta-analysis to medical research. This has mainly been due to greater emphasis on evidence-based medicine and the need for reliable summaries of the vast and expanding volume of clinical research. At the same time there have been great strides in the development and refinement of the associated statistical methodology. This book describes the planning, conduct and reporting of a meta-analysis as applied to a series of randomized controlled clinical trials. The various approaches are presented within a general unified framework. Meta-analysis techniques are described in detail, from their theoretical development through to practical implementation. Each topic discussed is supported by detailed worked examples. A comparison of fixed and random effects approaches is included, as well as a discussion of Bayesian methods and cumulative meta-analysis. Fully documented programs using standard statistical procedures in SAS are available on the Web. Ideally suited for practising statisticians and statistically-minded medical professionals, the book will also be of use to graduate students of medical statistics. The book is a self-contained and comprehensive account of the subject and an essential purchase for anyone involved in clinical trials.

Small Clinical Trials

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Author :
Publisher : National Academies Press
ISBN 13 : 9780309171144
Total Pages : 222 pages
Book Rating : 4.1/5 (711 download)

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Book Synopsis Small Clinical Trials by : Institute of Medicine

Download or read book Small Clinical Trials written by Institute of Medicine and published by National Academies Press. This book was released on 2001-01-01 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: Clinical trials are used to elucidate the most appropriate preventive, diagnostic, or treatment options for individuals with a given medical condition. Perhaps the most essential feature of a clinical trial is that it aims to use results based on a limited sample of research participants to see if the intervention is safe and effective or if it is comparable to a comparison treatment. Sample size is a crucial component of any clinical trial. A trial with a small number of research participants is more prone to variability and carries a considerable risk of failing to demonstrate the effectiveness of a given intervention when one really is present. This may occur in phase I (safety and pharmacologic profiles), II (pilot efficacy evaluation), and III (extensive assessment of safety and efficacy) trials. Although phase I and II studies may have smaller sample sizes, they usually have adequate statistical power, which is the committee's definition of a "large" trial. Sometimes a trial with eight participants may have adequate statistical power, statistical power being the probability of rejecting the null hypothesis when the hypothesis is false. Small Clinical Trials assesses the current methodologies and the appropriate situations for the conduct of clinical trials with small sample sizes. This report assesses the published literature on various strategies such as (1) meta-analysis to combine disparate information from several studies including Bayesian techniques as in the confidence profile method and (2) other alternatives such as assessing therapeutic results in a single treated population (e.g., astronauts) by sequentially measuring whether the intervention is falling above or below a preestablished probability outcome range and meeting predesigned specifications as opposed to incremental improvement.

Finding What Works in Health Care

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Author :
Publisher : National Academies Press
ISBN 13 : 0309164257
Total Pages : 267 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Finding What Works in Health Care by : Institute of Medicine

Download or read book Finding What Works in Health Care written by Institute of Medicine and published by National Academies Press. This book was released on 2011-07-20 with total page 267 pages. Available in PDF, EPUB and Kindle. Book excerpt: Healthcare decision makers in search of reliable information that compares health interventions increasingly turn to systematic reviews for the best summary of the evidence. Systematic reviews identify, select, assess, and synthesize the findings of similar but separate studies, and can help clarify what is known and not known about the potential benefits and harms of drugs, devices, and other healthcare services. Systematic reviews can be helpful for clinicians who want to integrate research findings into their daily practices, for patients to make well-informed choices about their own care, for professional medical societies and other organizations that develop clinical practice guidelines. Too often systematic reviews are of uncertain or poor quality. There are no universally accepted standards for developing systematic reviews leading to variability in how conflicts of interest and biases are handled, how evidence is appraised, and the overall scientific rigor of the process. In Finding What Works in Health Care the Institute of Medicine (IOM) recommends 21 standards for developing high-quality systematic reviews of comparative effectiveness research. The standards address the entire systematic review process from the initial steps of formulating the topic and building the review team to producing a detailed final report that synthesizes what the evidence shows and where knowledge gaps remain. Finding What Works in Health Care also proposes a framework for improving the quality of the science underpinning systematic reviews. This book will serve as a vital resource for both sponsors and producers of systematic reviews of comparative effectiveness research.

Introduction to Randomized Controlled Clinical Trials

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Author :
Publisher : CRC Press
ISBN 13 : 1420011308
Total Pages : 304 pages
Book Rating : 4.4/5 (2 download)

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Book Synopsis Introduction to Randomized Controlled Clinical Trials by : John N.S. Matthews

Download or read book Introduction to Randomized Controlled Clinical Trials written by John N.S. Matthews and published by CRC Press. This book was released on 2006-06-26 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: Evidence from randomized controlled clinical trials is widely accepted as the only sound basis for assessing the efficacy of new medical treatments. Statistical methods play a key role in all stages of these trials, including their justification, design, and analysis. This second edition of Introduction to Randomized Controlled Clinical Trials prov

Principles and Practice of Systematic Reviews and Meta-Analysis

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Author :
Publisher : Springer
ISBN 13 : 9783030719203
Total Pages : 188 pages
Book Rating : 4.7/5 (192 download)

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Book Synopsis Principles and Practice of Systematic Reviews and Meta-Analysis by : Sanjay Patole

Download or read book Principles and Practice of Systematic Reviews and Meta-Analysis written by Sanjay Patole and published by Springer. This book was released on 2021-08-03 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: Evidence based medicine is at the core of modern medicine. It involves the integration of individual clinical expertise with the best available clinical evidence from systematic research and patient's values and expectations. Systematic reviews offer a summary of the best available evidence. They are the most reliable and comprehensive statement about what works. Written by clinical academics from Australia, UK, USA, and Switzerland, this contributed volume introduces the readers to the principles and practice of systematic reviews and meta-analysis. It covers the various steps involved in systematic reviews including development of a focused question and the strategy for conducting a comprehensive literature search, identifying studies addressing the underlying question, assessment of heterogeneity and the risk of bias in the included studies, data extraction, and the approach to meta-analysis. Crucial issues such as selecting the model for meta-analysis, generating and interpreting forest plots, assessing the risk of publication bias, cautions in the interpretation of subgroup and sensitivity analyses, rating certainty of the evidence using GRADE guideline, and standardized reporting of meta-analysis (PRISMA) are covered in detail. Every attempt is made to keep the narrative simple and clear. Mathematical formulae are avoided as much as possible. While the focus of this book is on systematic reviews and meta-analyses of randomised controlled trials (RCTs), the gold standard of clinical research, the essentials of systematic reviews of non-RCTs, diagnostic test accuracy studies, animal studies, individual participant data meta-analysis, and network meta-analysis are also covered. Readers from all faculties of medicine will enjoy this comprehensive and reader friendly book to understand the principles and practice of systematic reviews and meta-analysis for guiding their clinical practice and research.

Modern Methods of Clinical Investigation

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Author :
Publisher : National Academies Press
ISBN 13 : 0309042860
Total Pages : 241 pages
Book Rating : 4.3/5 (9 download)

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Book Synopsis Modern Methods of Clinical Investigation by : Institute of Medicine

Download or read book Modern Methods of Clinical Investigation written by Institute of Medicine and published by National Academies Press. This book was released on 1990-02-01 with total page 241 pages. Available in PDF, EPUB and Kindle. Book excerpt: The very rapid pace of advances in biomedical research promises us a wide range of new drugs, medical devices, and clinical procedures. The extent to which these discoveries will benefit the public, however, depends in large part on the methods we choose for developing and testing them. Modern Methods of Clinical Investigation focuses on strategies for clinical evaluation and their role in uncovering the actual benefits and risks of medical innovation. Essays explore differences in our current systems for evaluating drugs, medical devices, and clinical procedures; health insurance databases as a tool for assessing treatment outcomes; the role of the medical profession, the Food and Drug Administration, and industry in stimulating the use of evaluative methods; and more. This book will be of special interest to policymakers, regulators, executives in the medical industry, clinical researchers, and physicians.

Cochrane Handbook for Systematic Reviews of Interventions

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Author :
Publisher : Wiley
ISBN 13 : 9780470699515
Total Pages : 672 pages
Book Rating : 4.6/5 (995 download)

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Book Synopsis Cochrane Handbook for Systematic Reviews of Interventions by : Julian P. T. Higgins

Download or read book Cochrane Handbook for Systematic Reviews of Interventions written by Julian P. T. Higgins and published by Wiley. This book was released on 2008-11-24 with total page 672 pages. Available in PDF, EPUB and Kindle. Book excerpt: Healthcare providers, consumers, researchers and policy makers are inundated with unmanageable amounts of information, including evidence from healthcare research. It has become impossible for all to have the time and resources to find, appraise and interpret this evidence and incorporate it into healthcare decisions. Cochrane Reviews respond to this challenge by identifying, appraising and synthesizing research-based evidence and presenting it in a standardized format, published in The Cochrane Library (www.thecochranelibrary.com). The Cochrane Handbook for Systematic Reviews of Interventions contains methodological guidance for the preparation and maintenance of Cochrane intervention reviews. Written in a clear and accessible format, it is the essential manual for all those preparing, maintaining and reading Cochrane reviews. Many of the principles and methods described here are appropriate for systematic reviews applied to other types of research and to systematic reviews of interventions undertaken by others. It is hoped therefore that this book will be invaluable to all those who want to understand the role of systematic reviews, critically appraise published reviews or perform reviews themselves.

Doing Meta-Analysis with R

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Author :
Publisher : CRC Press
ISBN 13 : 1000435636
Total Pages : 500 pages
Book Rating : 4.0/5 (4 download)

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Book Synopsis Doing Meta-Analysis with R by : Mathias Harrer

Download or read book Doing Meta-Analysis with R written by Mathias Harrer and published by CRC Press. This book was released on 2021-09-15 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt: Doing Meta-Analysis with R: A Hands-On Guide serves as an accessible introduction on how meta-analyses can be conducted in R. Essential steps for meta-analysis are covered, including calculation and pooling of outcome measures, forest plots, heterogeneity diagnostics, subgroup analyses, meta-regression, methods to control for publication bias, risk of bias assessments and plotting tools. Advanced but highly relevant topics such as network meta-analysis, multi-three-level meta-analyses, Bayesian meta-analysis approaches and SEM meta-analysis are also covered. A companion R package, dmetar, is introduced at the beginning of the guide. It contains data sets and several helper functions for the meta and metafor package used in the guide. The programming and statistical background covered in the book are kept at a non-expert level, making the book widely accessible. Features • Contains two introductory chapters on how to set up an R environment and do basic imports/manipulations of meta-analysis data, including exercises • Describes statistical concepts clearly and concisely before applying them in R • Includes step-by-step guidance through the coding required to perform meta-analyses, and a companion R package for the book

Meta Analysis in Medicine and Health Policy

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Author :
Publisher : CRC Press
ISBN 13 : 0824742052
Total Pages : 360 pages
Book Rating : 4.8/5 (247 download)

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Book Synopsis Meta Analysis in Medicine and Health Policy by : Stangl/Berry

Download or read book Meta Analysis in Medicine and Health Policy written by Stangl/Berry and published by CRC Press. This book was released on 2000 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: Analyses the data in health sciences and policy by introducing meta-analysis strategies while reviewing commonly used techniques. This text provides various chapters that build on principles, develop methodologies to solve statistical problems, and present concrete applications used by experienced medical practitioners and health policymakers.

Medical Uses of Statistics

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Author :
Publisher : CRC Press
ISBN 13 : 0429529600
Total Pages : 490 pages
Book Rating : 4.4/5 (295 download)

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Book Synopsis Medical Uses of Statistics by : John C. Bailar III

Download or read book Medical Uses of Statistics written by John C. Bailar III and published by CRC Press. This book was released on 2019-05-20 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work explains the purpose of statistical methods in medical studies and analyzes the statistical techniques used by clinical investigators, with special emphasis on studies published in "The New England Journal of Medicine". It clarifies fundamental concepts of statistical design and analysis, and facilitates the understanding of research results.

Small Clinical Trials

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Author :
Publisher : National Academies Press
ISBN 13 : 0309073332
Total Pages : 221 pages
Book Rating : 4.3/5 (9 download)

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Book Synopsis Small Clinical Trials by : Institute of Medicine

Download or read book Small Clinical Trials written by Institute of Medicine and published by National Academies Press. This book was released on 2001-02-01 with total page 221 pages. Available in PDF, EPUB and Kindle. Book excerpt: Clinical trials are used to elucidate the most appropriate preventive, diagnostic, or treatment options for individuals with a given medical condition. Perhaps the most essential feature of a clinical trial is that it aims to use results based on a limited sample of research participants to see if the intervention is safe and effective or if it is comparable to a comparison treatment. Sample size is a crucial component of any clinical trial. A trial with a small number of research participants is more prone to variability and carries a considerable risk of failing to demonstrate the effectiveness of a given intervention when one really is present. This may occur in phase I (safety and pharmacologic profiles), II (pilot efficacy evaluation), and III (extensive assessment of safety and efficacy) trials. Although phase I and II studies may have smaller sample sizes, they usually have adequate statistical power, which is the committee's definition of a "large" trial. Sometimes a trial with eight participants may have adequate statistical power, statistical power being the probability of rejecting the null hypothesis when the hypothesis is false. Small Clinical Trials assesses the current methodologies and the appropriate situations for the conduct of clinical trials with small sample sizes. This report assesses the published literature on various strategies such as (1) meta-analysis to combine disparate information from several studies including Bayesian techniques as in the confidence profile method and (2) other alternatives such as assessing therapeutic results in a single treated population (e.g., astronauts) by sequentially measuring whether the intervention is falling above or below a preestablished probability outcome range and meeting predesigned specifications as opposed to incremental improvement.

An Insider's Guide to Clinical Trials

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Author :
Publisher : Oxford University Press
ISBN 13 : 0199876657
Total Pages : 294 pages
Book Rating : 4.1/5 (998 download)

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Book Synopsis An Insider's Guide to Clinical Trials by : Curtis L Meinert

Download or read book An Insider's Guide to Clinical Trials written by Curtis L Meinert and published by Oxford University Press. This book was released on 2011-05-18 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book serves as an invaluable guide on how clinical trials are designed and run, how to interpret the results, and what to make of them in general. The book includes shopping guides for trials, a list of common abbreviations used by trialists, and tools for patients for deciding if or when to enroll in a clinical trial.

Principles and Practice of Clinical Research

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Author :
Publisher : Elsevier
ISBN 13 : 9780080489568
Total Pages : 448 pages
Book Rating : 4.4/5 (895 download)

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Book Synopsis Principles and Practice of Clinical Research by : John I. Gallin

Download or read book Principles and Practice of Clinical Research written by John I. Gallin and published by Elsevier. This book was released on 2011-04-28 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: The second edition of this innovative work again provides a unique perspective on the clinical discovery process by providing input from experts within the NIH on the principles and practice of clinical research. Molecular medicine, genomics, and proteomics have opened vast opportunities for translation of basic science observations to the bedside through clinical research. As an introductory reference it gives clinical investigators in all fields an awareness of the tools required to ensure research protocols are well designed and comply with the rigorous regulatory requirements necessary to maximize the safety of research subjects. Complete with sections on the history of clinical research and ethics, copious figures and charts, and sample documents it serves as an excellent companion text for any course on clinical research and as a must-have reference for seasoned researchers. *Incorporates new chapters on Managing Conflicts of Interest in Human Subjects Research, Clinical Research from the Patient's Perspective, The Clinical Researcher and the Media, Data Management in Clinical Research, Evaluation of a Protocol Budget, Clinical Research from the Industry Perspective, and Genetics in Clinical Research *Addresses the vast opportunities for translation of basic science observations to the bedside through clinical research *Delves into data management and addresses how to collect data and use it for discovery *Contains valuable, up-to-date information on how to obtain funding from the federal government

Knowing What Works in Health Care

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Author :
Publisher : National Academies Press
ISBN 13 : 0309113563
Total Pages : 279 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Knowing What Works in Health Care by : Institute of Medicine

Download or read book Knowing What Works in Health Care written by Institute of Medicine and published by National Academies Press. This book was released on 2008-05-29 with total page 279 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is currently heightened interest in optimizing health care through the generation of new knowledge on the effectiveness of health care services. The United States must substantially strengthen its capacity for assessing evidence on what is known and not known about "what works" in health care. Even the most sophisticated clinicians and consumers struggle to learn which care is appropriate and under what circumstances. Knowing What Works in Health Care looks at the three fundamental health care issues in the United States-setting priorities for evidence assessment, assessing evidence (systematic review), and developing evidence-based clinical practice guidelines-and how each of these contributes to the end goal of effective, practical health care systems. This book provides an overall vision and roadmap for improving how the nation uses scientific evidence to identify the most effective clinical services. Knowing What Works in Health Care gives private and public sector firms, consumers, health care professionals, benefit administrators, and others the authoritative, independent information required for making essential informed health care decisions.

Individual Participant Data Meta-Analysis

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Author :
Publisher : John Wiley & Sons
ISBN 13 : 1119333725
Total Pages : 38 pages
Book Rating : 4.1/5 (193 download)

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Book Synopsis Individual Participant Data Meta-Analysis by : Richard D. Riley

Download or read book Individual Participant Data Meta-Analysis written by Richard D. Riley and published by John Wiley & Sons. This book was released on 2021-06-08 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: Individual Participant Data Meta-Analysis: A Handbook for Healthcare Research provides a comprehensive introduction to the fundamental principles and methods that healthcare researchers need when considering, conducting or using individual participant data (IPD) meta-analysis projects. Written and edited by researchers with substantial experience in the field, the book details key concepts and practical guidance for each stage of an IPD meta-analysis project, alongside illustrated examples and summary learning points. Split into five parts, the book chapters take the reader through the journey from initiating and planning IPD projects to obtaining, checking, and meta-analysing IPD, and appraising and reporting findings. The book initially focuses on the synthesis of IPD from randomised trials to evaluate treatment effects, including the evaluation of participant-level effect modifiers (treatment-covariate interactions). Detailed extension is then made to specialist topics such as diagnostic test accuracy, prognostic factors, risk prediction models, and advanced statistical topics such as multivariate and network meta-analysis, power calculations, and missing data. Intended for a broad audience, the book will enable the reader to: Understand the advantages of the IPD approach and decide when it is needed over a conventional systematic review Recognise the scope, resources and challenges of IPD meta-analysis projects Appreciate the importance of a multi-disciplinary project team and close collaboration with the original study investigators Understand how to obtain, check, manage and harmonise IPD from multiple studies Examine risk of bias (quality) of IPD and minimise potential biases throughout the project Understand fundamental statistical methods for IPD meta-analysis, including two-stage and one-stage approaches (and their differences), and statistical software to implement them Clearly report and disseminate IPD meta-analyses to inform policy, practice and future research Critically appraise existing IPD meta-analysis projects Address specialist topics such as effect modification, multiple correlated outcomes, multiple treatment comparisons, non-linear relationships, test accuracy at multiple thresholds, multiple imputation, and developing and validating clinical prediction models Detailed examples and case studies are provided throughout.

ClinicalTrials

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Author :
Publisher : Oxford University Press
ISBN 13 : 0199910251
Total Pages : 720 pages
Book Rating : 4.1/5 (999 download)

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Book Synopsis ClinicalTrials by : Curtis L. Meinert PhD

Download or read book ClinicalTrials written by Curtis L. Meinert PhD and published by Oxford University Press. This book was released on 2012-02-17 with total page 720 pages. Available in PDF, EPUB and Kindle. Book excerpt: First published in 1986, this landmark text is the definitive guide to clinical trials, written by one of the leading experts in the field. This fully-updated second edition continues to be the most authoritative reference text on randomized clinical trials. It contains a wealth of practical information on the design, conduct, and analysis of both single center and multicenter trials. No other book on clinical trials offers as much detail on such issues as sample size calculation, stratification and randomization, data systems design, development of consent forms, publication policies, preparation of funding requests, and reporting procedures. While the basics of design, conduct, and analysis of clinical trials remain the same, there have been significant changes since the first edition of Clinical Trials was published two decades ago. In this new edition, the author discusses the refinements and improvements made to methods and procedures, changes in the policies and guidelines underlying trials, as well as requirements for registration of trials. He also discusses current practices for data sharing, for gender representation, for treatment effects monitoring, and for ethical standards of clinical trials. The importance of the randomized controlled trial has grown significantly over time and they are now the cornerstone of all evidence-based medicine. Still rich in tables, checklists, charts, and other resources for the trialist, the second edition of Clinical Trials is an indispensable reference for clinicians, biostaticians, epidemiologists, and anyone involved in the design and implementation of a clinical trial.