Observational Studies

Author : Paul R. Rosenbaum
Publisher : Springer Science & Business Media
ISBN 13 : 1475724438
Total Pages : 244 pages
Book Rating : 4.31/5 ( download)

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Download or read book Observational Studies written by Paul R. Rosenbaum and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: An observational study is an empirical investigation of the effects of treatments, policies, or exposures. It differes from an experiment in that the investigator cannot control the assignments of treatments to subjects. Scientists across a wide range of disciplines undertake such studies, and the aim of this book is to provide a sound statistical account of the principles and methods for the design and analysis of observational studies. Readers are assumed to have a working knowledge of basic probability and statistics, but otherwise the account is reasonably self-contained. Throughout there are extended discussions of actual observational studies to illustrate the ideas discussed. These are drawn from topics as diverse as smoking and lung cancer, lead in children, nuclear weapons testing, and placement programs for students. As a result, many researchers involved in observational studes will find this an invaluable companion to their work.

Author : Paul R. Rosenbaum
Publisher : Springer Science & Business Media
ISBN 13 : 1441912134
Total Pages : 382 pages
Book Rating : 4.38/5 ( download)

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Download or read book Design of Observational Studies written by Paul R. Rosenbaum and published by Springer Science & Business Media. This book was released on 2009-10-22 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt: An observational study is an empiric investigation of effects caused by treatments when randomized experimentation is unethical or infeasible. Observational studies are common in most fields that study the effects of treatments on people, including medicine, economics, epidemiology, education, psychology, political science and sociology. The quality and strength of evidence provided by an observational study is determined largely by its design. Design of Observational Studies is both an introduction to statistical inference in observational studies and a detailed discussion of the principles that guide the design of observational studies. Design of Observational Studies is divided into four parts. Chapters 2, 3, and 5 of Part I cover concisely, in about one hundred pages, many of the ideas discussed in Rosenbaum’s Observational Studies (also published by Springer) but in a less technical fashion. Part II discusses the practical aspects of using propensity scores and other tools to create a matched comparison that balances many covariates. Part II includes a chapter on matching in R. In Part III, the concept of design sensitivity is used to appraise the relative ability of competing designs to distinguish treatment effects from biases due to unmeasured covariates. Part IV discusses planning the analysis of an observational study, with particular reference to Sir Ronald Fisher’s striking advice for observational studies, "make your theories elaborate." The second edition of his book, Observational Studies, was published by Springer in 2002.

Author : Agency for Health Care Research and Quality (U.S.)
Publisher : Government Printing Office
ISBN 13 : 1587634236
Total Pages : 204 pages
Book Rating : 4.39/5 ( download)

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Download or read book Developing a Protocol for Observational Comparative Effectiveness Research: A User's Guide written by Agency for Health Care Research and Quality (U.S.) and published by Government Printing Office. This book was released on 2013-02-21 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: This User’s Guide is a resource for investigators and stakeholders who develop and review observational comparative effectiveness research protocols. It explains how to (1) identify key considerations and best practices for research design; (2) build a protocol based on these standards and best practices; and (3) judge the adequacy and completeness of a protocol. Eleven chapters cover all aspects of research design, including: developing study objectives, defining and refining study questions, addressing the heterogeneity of treatment effect, characterizing exposure, selecting a comparator, defining and measuring outcomes, and identifying optimal data sources. Checklists of guidance and key considerations for protocols are provided at the end of each chapter. The User’s Guide was created by researchers affiliated with AHRQ’s Effective Health Care Program, particularly those who participated in AHRQ’s DEcIDE (Developing Evidence to Inform Decisions About Effectiveness) program. Chapters were subject to multiple internal and external independent reviews. More more information, please consult the Agency website: www.effectivehealthcare.ahrq.gov)

Author : Robert A. Parker
Publisher : Cambridge University Press
ISBN 13 : 1316790592
Total Pages : 598 pages
Book Rating : 4.95/5 ( download)

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Download or read book Planning Clinical Research written by Robert A. Parker and published by Cambridge University Press. This book was released on 2016-10-12 with total page 598 pages. Available in PDF, EPUB and Kindle. Book excerpt: Planning a clinical study is much more than determining the basic study design. Who will you be studying? How do you plan to recruit your study subjects? How do you plan to retain them in the study? What data do you plan to collect? How will you obtain this data? How will you minimize bias? All these decisions must be consistent with the ethical considerations of studying people. This book teaches how to choose the best design for your question. Drawing on their many years working in clinical research, Nancy G. Berman and Robert A. Parker guide readers through the essential elements of study planning to help get them started. The authors offer numerous examples to illustrate the key decisions needed, describing what works, what does not work, and why. Written specifically for junior investigators beginning their research careers, this guide will also be useful to senior investigators needing to review specific topics.

Author : A Learning Health System Activity
Publisher : National Academies Press
ISBN 13 : 9780309290814
Total Pages : 0 pages
Book Rating : 4.13/5 ( download)

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Download or read book Observational Studies in a Learning Health System written by A Learning Health System Activity and published by National Academies Press. This book was released on 2013-12-16 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Clinical research strains to keep up with the rapid and iterative evolution of medical interventions, clinical practice innovation, and the increasing demand for information on the clinical effectiveness of these advancements. In response to the growing availability of archived and real-time digital health data and the opportunities this data provides for research, as well as the increasing number of studies using prospectively collected clinical data, the Institute of Medicine\'s Roundtable on Value & Science-Driven Health Care convened a workshop on Observational Studies in a Learning Health System. Participants, including experts from a wide range of disciplines - clinical researchers, statisticians, biostatisticians, epidemiologists, health care informaticians, health care analytics, research funders, health products industry, clinicians, payers, and regulators - explored leading edge approaches to observational studies, charted a course for the use of the growing health data utility, and identified opportunities to advance progress. Workshop speakers and individual participants strove to identify stakeholder needs and barriers to the broader application of observational studies. Observational Studies in a Learning Health Systemis the summary of the workshop. This report explores the role of observational studies in the generation of evidence to guide clinical and health policy decisions. The report discusses concepts of rigorous observational study design and analysis, emerging statistical methods, and opportunities and challenges of observational studies to complement evidence from experimental methods, treatment heterogeneity, and effectiveness estimates tailored toward individual patients.

Author : Pamela M. Marcus
Publisher : Springer Nature
ISBN 13 : 3030945774
Total Pages : 138 pages
Book Rating : 4.70/5 ( download)

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Download or read book Assessment of Cancer Screening written by Pamela M. Marcus and published by Springer Nature. This book was released on 2022 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cancer screening is a prominent strategy in cancer control in the United States, yet the ability to correctly interpret cancer screening data eludes many researchers, clinicians, and policy makers. This open access primer rectifies that situation by teaching readers, in simple language and with straightforward examples, why and how the population-level cancer burden changes when screening is implemented, and how we assess whether that change is of benefit. This book provides an in-depth look at the many aspects of cancer screening and its assessment, including screening phenomena, performance measures, population-level outcomes, research designs, and other important and timely topics. Concise, accessible, and focused, Assessment of Cancer Screening: A Primer is best suited to those with education or experience in clinical research or public health in the United States - no previous knowledge of cancer screening assessment is necessary. This is the first text dedicated to cancer screening theory and methodology to be published in 20 years.

Author : Paul Rosenbaum
Publisher : Harvard University Press
ISBN 13 : 067497557X
Total Pages : 395 pages
Book Rating : 4.76/5 ( download)

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Download or read book Observation and Experiment written by Paul Rosenbaum and published by Harvard University Press. This book was released on 2017-08-14 with total page 395 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the face of conflicting claims about some treatments, behaviors, and policies, the question arises: What is the most scientifically rigorous way to draw conclusions about cause and effect in the study of humans? In this introduction to causal inference, Paul Rosenbaum explains key concepts and methods through real-world examples.

Author : Paul Rosenbaum
Publisher : CRC Press
ISBN 13 : 100037002X
Total Pages : 273 pages
Book Rating : 4.27/5 ( download)

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Download or read book Replication and Evidence Factors in Observational Studies written by Paul Rosenbaum and published by CRC Press. This book was released on 2021-03-30 with total page 273 pages. Available in PDF, EPUB and Kindle. Book excerpt: Outside of randomized experiments, association does not imply causation, and yet there is nothing defective about our knowledge that smoking causes lung cancer, a conclusion reached in the absence of randomized experimentation with humans. How is that possible? If observed associations do not identify causal effects in observational studies, how can a sequence of such associations become decisive? Two or more associations may each be susceptible to unmeasured biases, yet not susceptible to the same biases. An observational study has two evidence factors if it provides two comparisons susceptible to different biases that may be combined as if from independent studies of different data by different investigators, despite using the same data twice. If the two factors concur, then they may exhibit greater insensitivity to unmeasured biases than either factor exhibits on its own. Replication and Evidence Factors in Observational Studies includes four parts: A concise introduction to causal inference, making the book self-contained Practical examples of evidence factors from the health and social sciences with analyses in R The theory of evidence factors Study design with evidence factors A companion R package evident is available from CRAN.

Author : Rajender R. Aparasu
Publisher : Jones & Bartlett Publishers
ISBN 13 : 1449691315
Total Pages : 400 pages
Book Rating : 4.18/5 ( download)

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Download or read book Principles of Research Design and Drug Literature Evaluation written by Rajender R. Aparasu and published by Jones & Bartlett Publishers. This book was released on 2014-03-07 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: Principles of Research Design and Drug Literature Evaluation is a unique resource that provides a balanced approach covering critical elements of clinical research, biostatistical principles, and scientific literature evaluation techniques for evidence-based medicine. This accessible text provides comprehensive course content that meets and exceeds the curriculum standards set by the Accreditation Council for Pharmacy Education (ACPE). Written by expert authors specializing in pharmacy practice and research, this valuable text will provide pharmacy students and practitioners with a thorough understanding of the principles and practices of drug literature evaluation with a strong grounding in research and biostatistical principles. Principles of Research Design and Drug Literature Evaluation is an ideal foundation for professional pharmacy students and a key resource for pharmacy residents, research fellows, practitioners, and clinical researchers. FEATURES * Chapter Pedagogy: Learning Objectives, Review Questions, References, and Online Resources * Instructor Resources: PowerPoint Presentations, Test Bank, and an Answer Key * Student Resources: a Navigate Companion Website, including Crossword Puzzles, Interactive Flash Cards, Interactive Glossary, Matching Questions, and Web Links From the Foreword: "This book was designed to provide and encourage practitioner’s development and use of critical drug information evaluation skills through a deeper understanding of the foundational principles of study design and statistical methods. Because guidance on how a study’s limited findings should not be used is rare, practitioners must understand and evaluate for themselves the veracity and implications of the inherently limited primary literature findings they use as sources of drug information to make evidence-based decisions together with their patients. The editors organized the book into three supporting sections to meet their pedagogical goals and address practitioners’ needs in translating research into practice. Thanks to the editors, authors, and content of this book, you can now be more prepared than ever before for translating research into practice." L. Douglas Ried, PhD, FAPhA Editor-in-Chief Emeritus, Journal of the American Pharmacists Association Professor and Associate Dean for Academic Affairs, College of Pharmacy, University of Texas at Tyler, Tyler, Texas

Author : Ettore Marubini
Publisher : John Wiley & Sons
ISBN 13 : 9780470093412
Total Pages : 436 pages
Book Rating : 4.12/5 ( download)

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Download or read book Analysing Survival Data from Clinical Trials and Observational Studies written by Ettore Marubini and published by John Wiley & Sons. This book was released on 2004-07-02 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt: A practical guide to methods of survival analysis for medical researchers with limited statistical experience. Methods and techniques described range from descriptive and exploratory analysis to multivariate regression methods. Uses illustrative data from actual clinical trials and observational studies to describe methods of analysing and reporting results. Also reviews the features and performance of statistical software available for applying the methods of analysis discussed.