Download or read book Recent Advances in Clinical Trial Design and Analysis written by Peter F. Thall and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 263 pages. Available in PDF, EPUB and Kindle. Book excerpt: Clinical trials have two purposes -- to treat the patients in the trial, and to obtain information which increases our understanding of the disease and especially how patients respond to treatment. Statistical design provides a means to achieve both these aims, while statistical data analysis provides methods for extracting useful information from the trial data. Recent advances in statistical computing have enabled statisticians to implement very rapidly a broad array of methods which previously were either impractical or impossible. Biostatisticians are now able to provide much greater support to medical researchers working in both clinical and laboratory settings. As our collective toolkit of techniques for analyzing data has grown, it has become increasingly difficult for biostatisticians to keep up with all the developments in our own field. Recent Advances in Clinical Trial Design and Analysis brings together biostatisticians doing cutting-edge research and explains some of the more recent developments in biostatistics to clinicians and scientists who work in clinical trials.
Download or read book Assessing Quality of Life in Clinical Trials written by Peter M. Fayers and published by . This book was released on 2005 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt: Researchers in all clinical fields are fully aware of the importance of Quality of Life measurements in judging the efficacy of a given treatment. Psychological criteria play an important role in this evaluation. Assessment of Quality of Life in Clinical Trials: methods and practice explores the current state of the art and illustrates the benefits and potential of health related quality of life assessment in clinical trials. It covers a wide range of analytical issues, emphasizing new and innovative approaches that are of practical and clinical importance.
Download or read book Quality of Life written by Peter M. Fayers and published by John Wiley & Sons. This book was released on 2013-05-23 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt: Quality of life studies form an essential part of the evaluation of any treatment. Written by two authors who are well respected within this field, Quality of Life: The Assessment, Analysis and Interpretation of Patient-reported Outcomes, Second Edition lays down guidelines on assessing, analysing and interpreting quality of life data. The new edition of this standard book has been completely revised, updated and expanded to reflect many methodological developments emerged since the publication of the first edition. Covers the design of instruments, the practical aspects of implementing assessment, the analyses of the data, and the interpretation of the results Presents all essential information on Quality of Life Research in one comprehensive volume Explains the use of qualitative and quantitative methods, including the application of basic statistical methods Includes copious practical examples Fills a need in a rapidly growing area of interest New edition accommodates significant methodological developments, and includes chapters on computer adaptive testing and item banking, choosing an instrument, systematic reviews and meta analysis This book is of interest for everyone involved in quality of life research, and it is applicable to medical and non-medical, statistical and non-statistical readers. It is of particular relevance for clinical and biomedical researchers within both the pharmaceutical industry and practitioners in the fields of cancer and other chronic diseases. Reviews of the First Edition – Winner of the first prize in the Basis of Medicine Category of the BMA Medical Book Competition 2001: “This book is highly recommended to clinicians who are actively involved in the planning, analysis and publication of QoL research.” CLINICAL ONCOLOGY “This book is highly recommended reading.” QUALITY OF LIFE RESEARCH
Download or read book Quality of Life Assessment in Clinical Trials written by Maurice J. Staquet and published by Oxford University Press, USA. This book was released on 1998 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: Researchers in all clinical fields are becoming increasingly aware of the importance of quality of life measurements in judging the efficacy of a given treatment, and it is becoming more common for psychological criteria to play an important role in the evaluation of therapies. In the past ten years a number of methods have been developed for carrying out such assessments. Quality of life research does however use special statistical methods which might well be unfamiliar to the clinician. Quality of life assessment in clinical trials: methods and practice explores these methods in a non-mathematical manner, comparing and contrasting the tools available to the clinician, and highlighting any potential pitfalls. It describes the methods used to collect and analyse quality of life data. The book will have widespread appeal to clinical trialists and researchers from a wide range of specialties.
Download or read book Quality of Life and Pharmacoeconomics written by Joyce A. Cramer and published by Lippincott Williams & Wilkins. This book was released on 1998 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on Dr. Spilker's classic Quality of Life and Pharmacoeconomics in Clinical Trials, 2nd Edition, this streamlined sourcebook offers an easy-to-understand introduction to an increasingly critical aspect of health care. Seven succinct sections review key aspects of health-related quality of life and the essentials of pharmacoeconomics, providing expert answers to your most pressing questions: What generic HRQOL and disease-specific assessments are available? How are these scales chosen, used, and interpreted? What instruments do I need...and where can I find them? What is the relationship between pharmacoeconomics and quality of life? Between outcomes research and quality of life? Well-organized and easy to use, Quality of Life and Pharmacoeconomics: An Introduction will become a standard textbook for professionals and students in all areas of medical research and practice.
Download or read book The Prevention and Treatment of Missing Data in Clinical Trials written by National Research Council and published by National Academies Press. This book was released on 2010-12-21 with total page 163 pages. Available in PDF, EPUB and Kindle. Book excerpt: Randomized clinical trials are the primary tool for evaluating new medical interventions. Randomization provides for a fair comparison between treatment and control groups, balancing out, on average, distributions of known and unknown factors among the participants. Unfortunately, these studies often lack a substantial percentage of data. This missing data reduces the benefit provided by the randomization and introduces potential biases in the comparison of the treatment groups. Missing data can arise for a variety of reasons, including the inability or unwillingness of participants to meet appointments for evaluation. And in some studies, some or all of data collection ceases when participants discontinue study treatment. Existing guidelines for the design and conduct of clinical trials, and the analysis of the resulting data, provide only limited advice on how to handle missing data. Thus, approaches to the analysis of data with an appreciable amount of missing values tend to be ad hoc and variable. The Prevention and Treatment of Missing Data in Clinical Trials concludes that a more principled approach to design and analysis in the presence of missing data is both needed and possible. Such an approach needs to focus on two critical elements: (1) careful design and conduct to limit the amount and impact of missing data and (2) analysis that makes full use of information on all randomized participants and is based on careful attention to the assumptions about the nature of the missing data underlying estimates of treatment effects. In addition to the highest priority recommendations, the book offers more detailed recommendations on the conduct of clinical trials and techniques for analysis of trial data.
Download or read book Design and Analysis of Quality of Life Studies in Clinical Trials written by Diane L. Fairclough and published by CRC Press. This book was released on 2002-03-28 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: More and more frequently, clinical trials include the evaluation of Health-Related Quality of Life (HRQoL), yet many investigators remain unaware of the unique measurement and analysis issues associated with the assessment of HRQoL. At the end of a study, clinicians and statisticians often face challenging and sometimes insurmountable analytic problems. Design and Analysis of Quality of Life Studies in Clinical Trials details these issues and presents a range of solutions. Written from the author's extensive experience in the field, it focuses on the very specific features of QoL data: its longitudinal nature, multidimensionality, and the problem of missing data. The author uses three real clinical trials throughout her discussions to illustrate practical implementation of the strategies and analytic methods presented. As Quality of Life becomes an increasingly important aspect of clinical trials, it becomes essential for clinicians, statisticians, and designers of these studies to understand and meet the challenges this kind of data present. In this book, SAS and S-PLUS programs, checklists, numerous figures, and a clear, concise presentation combine to provide readers with the tools and skills they need to successfully design, conduct, analyze, and report their own studies.
Download or read book Quality of Life Assessment Key Issues in the 1990s written by Stuart R. Walker and published by Springer Science & Business Media. This book was released on 1993 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reviews current methodology for assessing the health status of patients -- their 'quality of life' -- and shows how this methodology can be applied to specific diseases such as cancer, rheumatoid arthritis, angina and Parkinson's disease.
Download or read book Assessment of Quality of Life in Clinical Trials of Cardiovascular Therapies written by Nanette Kass Wenger and published by Le Jacq Pub. This book was released on 1984 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Outcomes Assessment in Cancer written by Joseph Lipscomb and published by Cambridge University Press. This book was released on 2011-08-18 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The U.S. National Cancer Institute established the Cancer Outcomes Measurement Working Group in 2001 to evaluate measurements of the important and diverse impacts of cancer on individuals and populations. The findings and recommendations of the working group's 35 internationally recognized members provide alternative approaches for comprehensively measuring the burden of cancer and the effectiveness of preventive and therapeutic interventions.
Download or read book Measuring Health Related Quality of Life in Children and Adolescents written by Dennis Drotar and published by Psychology Press. This book was released on 2014-06-03 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume's purpose is to describe concepts and methods concerning assessment of health-related quality of life (HRQOL) in children and adolescents with a special focus on chronic health conditions. The impetus for this book came from a recognition of the increasing importance of HRQOL assessments in the evaluation of treatment outcomes and the need to increase the utilization of HRQOL assessments in research and clinical applications with a range of pediatric populations. The need to develop a volume that describes new research and clinical applications concerning this topic stemmed from several recent developments. There is a continuing need for evaluations of the efficacy of medical treatments for children and adolescents, including those with chronic health conditions. To address these critical unmet needs in the field of HRQOL assessment, and to advance scientific methods and clinical applications in this field, a conference was held at Case Western Reserve University. The conference set out to summarize current information concerning the development and implementation of measures of HRQOL assessment, to identify and consider key conceptual and methodological issues in research concerning the measurement of HRQOL, and to recommend priorities to advance the state-of-the-art in research and clinical applications of QOL assessment in children and adolescents with chronic health conditions. This volume summarizes and synthesizes the information that was presented by the conference participants in a series of lively discussions and chapters that were based on the presentations.
Download or read book Statistical Methods for Quality of Life Studies written by Mounir Mesbah and published by Springer Science & Business Media. This book was released on 2002-08-31 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt: The volume presents a broad spectrum of papers which illustrates a range of current research related to the theory, methods and applications of health related quality of life (HRQoL) as well as the interdisciplinary nature of this work.
Download or read book Oral Health related Quality of Life written by Marita Rohr Inglehart and published by Quintessence Publishing (IL). This book was released on 2002 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: ABSTRACT: Helping patients achieve an optimal quality of life through patient-centered treatment planning should be the ultimate goal of all oral health care providers. However, this issue extends beyond the realm of the individual clinician's office. This text presents quality-of-life research from various fields, including psychology, public health, and general health care; discusses how a patient-centered approach can be applied to basic oral and craniofacial research, clinical dental practice, community dental health issues, and dental education; and addresses how oral health-related quality of life relates to treating and understanding different patient populations, such as children with special needs, medically compromised patients, patients with oral cancer, and patients with chronic facial pain. Also discussed is how factors such as race/ethnicity, gender, and age can affect oral health-related quality-of-life concerns and treatment strategies. Finally, the book offers an outlook on the role that oral health-related quality of life will play in future research and dental education.
Download or read book Effect of Cancer On Quality of Life written by David Osoba and published by CRC Press. This book was released on 2021-11-01 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is comprised of extensive reviews and instructional chapters that discuss the quality of life in several aspects of cancer. The first six chapters deal with conceptual issues relating to measuring quality of life in adult and pediatric populations with cancer. The next five chapters provide practical information on how to select quality-of-life measures, the statistical analysis of trials, economic evaluations to be considered, and some possible abuses of quality-of-life measures. Five chapters review the results of studies using selected quality-of-life measures and provide recent information on their performance. These are followed by three chapters dealing with specific issues relating to nausea and vomiting associated with cancer therapy. Three chapters are devoted to the problems of assessing and controlling pain in patients who have cancer. There are also two chapters that deal with the quality of life in palliative care. Effect of Cancer on Quality of Life is intended for all who have an interest in measuring the quality of life in patients with cancer. This includes investigators who are just entering the field and can benefit from instructions on how to conduct quality-of-life research, as well as those who are experienced in conducting this kind of research.
Download or read book Assessing Quality of Life in Alzheimer s Disease written by Steven Mark Albert and published by Springer Publishing Company. This book was released on 2000 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 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.
Download or read book Patient Reported Outcomes in Performance Measurement written by David Cella and published by RTI Press. This book was released on 2015-09-17 with total page 97 pages. Available in PDF, EPUB and Kindle. Book excerpt: Patient-reported outcomes (PROs) are measures of how patients feel or what they are able to do in the context of their health status; PROs are reports, usually on questionnaires, about a patient's health conditions, health behaviors, or experiences with health care that individuals report directly, without modification of responses by clinicians or others; thus, they directly reflect the voice of the patient. PROs cover domains such as physical health, mental and emotional health, functioning, symptoms and symptom burden, and health behaviors. They are relevant for many activities: helping patients and their clinicians make informed decisions about health care, monitoring the progress of care, setting policies for coverage and reimbursement of health services, improving the quality of health care services, and tracking or reporting on the performance of health care delivery organizations. We address the major methodological issues related to choosing, administering, and using PROs for these purposes, particularly in clinical practice settings. We include a framework for best practices in selecting PROs, focusing on choosing appropriate methods and modes for administering PRO measures to accommodate patients with diverse linguistic, cultural, educational, and functional skills, understanding measures developed through both classic and modern test theory, and addressing complex issues relating to scoring and analyzing PRO data.
