case-control-studies

Download Book Case Control Studies in PDF format. You can Read Online Case Control Studies here in PDF, EPUB, Mobi or Docx formats.

Case Control Studies

Author : James J. Schlesselman
ISBN : 019977143X
Genre : Medical
File Size : 81. 88 MB
Format : PDF, Kindle
Download : 193
Read : 1272

Get This Book



Case Control Studies

Author : Ruth H. Keogh
ISBN : 9781107019560
Genre : Business & Economics
File Size : 71. 2 MB
Format : PDF, ePub
Download : 486
Read : 816

Get This Book


Covers the fundamentals of case-control studies including important recent developments, with a focus on statistical analysis.

Handbook Of Statistical Methods For Case Control Studies

Author : Ørnulf Borgan
ISBN : 9781351650120
Genre : Mathematics
File Size : 27. 1 MB
Format : PDF, ePub, Mobi
Download : 153
Read : 762

Get This Book


Handbook of Statistical Methods for Case-Control Studies is written by leading researchers in the field. It provides an in-depth treatment of up-to-date and currently developing statistical methods for the design and analysis of case-control studies, as well as a review of classical principles and methods. The handbook is designed to serve as a reference text for biostatisticians and quantitatively-oriented epidemiologists who are working on the design and analysis of case-control studies or on related statistical methods research. Though not specifically intended as a textbook, it may also be used as a backup reference text for graduate level courses. Book Sections Classical designs and causal inference, measurement error, power, and small-sample inference Designs that use full-cohort information Time-to-event data Genetic epidemiology About the Editors Ørnulf Borgan is Professor of Statistics, University of Oslo. His book with Andersen, Gill and Keiding on counting processes in survival analysis is a world classic. Norman E. Breslow was, at the time of his death, Professor Emeritus in Biostatistics, University of Washington. For decades, his book with Nick Day has been the authoritative text on case-control methodology. Nilanjan Chatterjee is Bloomberg Distinguished Professor, Johns Hopkins University. He leads a broad research program in statistical methods for modern large scale biomedical studies. Mitchell H. Gail is a Senior Investigator at the National Cancer Institute. His research includes modeling absolute risk of disease, intervention trials, and statistical methods for epidemiology. Alastair Scott was, at the time of his death, Professor Emeritus of Statistics, University of Auckland. He was a major contributor to using survey sampling methods for analyzing case-control data. Chris J. Wild is Professor of Statistics, University of Auckland. His research includes nonlinear regression and methods for fitting models to response-selective data.

The Case Control Study Consensus And Controversy

Author : Michel A. Ibrahim
ISBN : 9781483189307
Genre : Health & Fitness
File Size : 20. 64 MB
Format : PDF
Download : 296
Read : 560

Get This Book


The Case-Control Study: Consensus and Controversy focuses on the history and the evolution of the case-control study, addresses the methodological issues discussed in this book, and presents illustrative studies to examine the problems and opportunities inherent in the method. This text first discusses the progress and evolution of case-control studies. This book then explains methodologic problems and standards in case-control research, which is followed by a discussion on bias in analytic research. Before this book gives the highlights of the conference it documents, it first tackles the confidence intervals for the odds ratio in case-control studies; case-control studies on the effect of sex steroids on women and their offspring; and methodologic variation in case-control studies of reserpine and breast cancer. This text also looks into the questions frequently asked regarding case-control studies, such as on the selection of appropriate controls, publication of research findings, and type of research needs to be done on case-control studies to improve them. This book concludes by explaining the development of standards for case control studies, as well as other problems and prospect regarding this study. This publication will be invaluable to those interested in case-control studies.

Case Control Studies In Medical Research A Practical Approach

Author : Brijesh Sathian
ISBN : 3659238864
Genre :
File Size : 43. 78 MB
Format : PDF, ePub
Download : 488
Read : 592

Get This Book


Case-control studies can yield important scientific findings with relatively little time, money, and effort compared with other study designs. Investigators implement case-control studies more frequently than any other analytical epidemiological study. Unfortunately, case-control designs also tend to be more susceptible to biases than other comparative studies. Although easier to do, they are also easier to do wrong. A good design should aim to minimise error and bias. All remaining sources of error and bias should be recognised and decisively evaluated. Case-control studies that are well designed and carefully done can provide useful and reliable results. Few case control study projects done by the authors are given as examples in this book for the medical professional to learn and write their manuscript. Investigators must, however, devote painstaking attention to the selection of control groups and to measurement of exposure information. When the number of cases is small, the ratio of controls to cases can be raised to improve the ability to find important differences.

Sample Size Calculations In Matched Case Control Studies And Unmatched Case Control Studies With Controls Contaminated

Author : Xiaolei Liu
ISBN : OCLC:301811866
Genre :
File Size : 31. 89 MB
Format : PDF, Kindle
Download : 677
Read : 475

Get This Book


Matched case-control design is a type of stratification for the control of confounding at the design stage. One of basic premises is a 1:M matched case-control study, where each case is matched with one or multiple controls on a number of variables. The goal is to test the equality of K odds ratios stemming from K+1 distinct matching scenarios. In the literature, conditional likelihood approach is used for calculating sample size for detecting specific departures from the null hypothesis of no association with a given power (See Sinha and Mukherjee 2006). In this research proposal, we use the full likelihood for calculating sample sizes. Comparisons are made between the two approaches. The second study proposed is the calculation of sample sizes to detect departures from the null hypothesis of no association with a given power in unmatched case-control studies when an unknown number of controls are cases. The focus is on 2x2 case-control unmatched studies, in which the cases (those with the disease) are genuine but the controls may contain patients with disease due to misclassification in disease screening. We systemically examine the effect of such contamination on odds ratio and data analysis. We will provide sample size formulas using two different procedures by taking into account the contamination ratio, one procedure is by testing equivalence of two sample proportions and the other using log odds ratio test. The misclassification problem arose when planning a study to identify factors causing sleep apnea.

Self Controlled Case Series Studies

Author : Paddy Farrington
ISBN : 9780429957529
Genre : Mathematics
File Size : 41. 87 MB
Format : PDF, ePub, Mobi
Download : 452
Read : 257

Get This Book


"The self-controlled case series has emerged as a key methodology for studying the effects of healthcare interventions. The overall literature around the self-controlled case series has exploded in recent years and this important and timely book pulls it all together in an effective and clear manner. It certainly belongs on the shelf (or beside the keyboard) of every analyst conducting observational studies in healthcare." —David Madigan, Columbia University Self-Controlled Case Series Studies: A Modelling Guide with R provides the first comprehensive account of the self-controlled case series (SCCS) method, a statistical technique for investigating associations between outcome events and time-varying exposures. The method only requires information from individuals who have experienced the event of interest, and automatically controls for multiplicative time-invariant confounders, even when these are unmeasured or unknown. It is increasingly being used in epidemiology, most frequently to study the safety of vaccines and pharmaceutical drugs. Key features of the book include: A thorough yet accessible description of the SCCS method, with mathematical details provided in separate starred sections. Comprehensive discussion of assumptions and how they may be verified. A detailed account of different SCCS models, extensions of the SCCS method, and the design of SCCS studies. Extensive practical illustrations and worked examples from epidemiology. Full computer code from the associated R package SCCS, which includes all the data sets used in the book. The book is aimed at a broad range of readers, including epidemiologists and medical statisticians who wish to use the SCCS method, and also researchers with an interest in statistical methodology. The three authors have been closely involved with the inception, development, popularisation and programming of the SCCS method.

Case Control Studies

Author : Richard Alan Goodman
ISBN : OCLC:845048953
Genre : Case-control method
File Size : 66. 89 MB
Format : PDF, Docs
Download : 236
Read : 1161

Get This Book


Current understanding of the determinants of homicide derives primarily from studies in which data are aggregated for geopolitical units. Case-control studies and other analytic methods are needed to test teh causal hypotheses regarding the risk of homicide victimization or perpetation for indivuduals. Strengths and limitations of the case-control method are illustrated by comparing the design with cohort studies. Fundamental issues include the selection of comparability of case and controls, effects fo biases, interpretation fo risk estimates, and problems of implementation. Increased use of this method should advance our understanding of homicide and other forms of violent behavior.

Case Control Studies With Contaminated Controls

Author : Guido Imbens
ISBN : IND:30000104905892
Genre : Sampling (Statistics)
File Size : 59. 72 MB
Format : PDF, ePub
Download : 833
Read : 1285

Get This Book



Case Control Studies With Longitudinal Covariates

Author : Honghong Zhou
ISBN : UOM:39015069121294
Genre :
File Size : 46. 43 MB
Format : PDF, Kindle
Download : 605
Read : 865

Get This Book



The Analysis Of Case Control Studies

Author : Nicholas E. Day
ISBN : 9283201329
Genre :
File Size : 45. 16 MB
Format : PDF, ePub, Mobi
Download : 810
Read : 352

Get This Book



Case Control Studies

Author : Sangeun Oh
ISBN : OCLC:223625036
Genre : Epidemiology
File Size : 32. 4 MB
Format : PDF
Download : 630
Read : 1273

Get This Book



Risk Factors For Alzheimer S Disease

Author : Cornelia M. van Duijn
ISBN : CORNELL:31924059260640
Genre : Alzheimer's disease
File Size : 68. 27 MB
Format : PDF, ePub
Download : 630
Read : 868

Get This Book



Encyclopedia Of Epidemiologic Methods

Author : Mitchell H. Gail
ISBN : 0471866415
Genre : Medical
File Size : 50. 51 MB
Format : PDF, ePub, Docs
Download : 156
Read : 216

Get This Book


Featuring articles from the prestigious Encyclopedia of Biostatistics, many of which have been revised and updated to include recent developments, the Encyclopedia of Epidemiologic Methods also includes newly commissioned articles reflecting the latest thinking in Cancer Registries Birth Defect Registries Meta Analysis of Epidemiologic Studies Epidemiology Overview Sample Size Sex Ratio at Birth Software Design and Analysis Featuring contributions from leading experts in academia, government and industry, the Encyclopedia of Epidemiologic Methods has been designed to complement existing texts on the subject by providing further extensive, up-to-date coverage of specialised topics and by introducing the reader to the research literature. Offering a wealth of information in a single resource, the Encyclopedia of Epidemiologic Methods Offers an excellent introduction to a vast array of specialised topics Includes in-depth coverage of the statistical underpinnings of contemporary epidemiologic methods Provides concise definitions and introductions to numerous concepts found in the current literature Uses extensive cross-references, helping to facilitate further research, and enabling the reader to locate definitions and related concepts In addition to featuring extensive articles in the areas of descriptive and analytic epidemiology, the Encyclopedia also provides the reader with articles on case-control design and offers substantial coverage of allied statistical methods.

A Discussion On Interval Estimation Of Odds Ratio In Case Control Studies With Matched Pairs

Author : Sandy Mei-Jiuan Ho
ISBN : OCLC:39266061
Genre : Confidence intervals
File Size : 67. 90 MB
Format : PDF, ePub, Docs
Download : 731
Read : 1175

Get This Book



Case Control Studies

Author : James Schlesselman
ISBN : OCLC:1025511809
Genre :
File Size : 37. 8 MB
Format : PDF, ePub
Download : 931
Read : 310

Get This Book



Quitting Smoking Mortality

Author : Zhiming Jim Mai
ISBN : 136103873X
Genre : Medical
File Size : 33. 47 MB
Format : PDF, Mobi
Download : 488
Read : 693

Get This Book


This dissertation, "Quitting Smoking and Mortality: a Population-based Mortality Case-control Study in Hong Kong" by Zhiming, Jim, Mai, 麥智明, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. Abstract: Background: Our knowledge of the health benefits of quitting smoking is mainly derived from prospective cohort studies in developed countries/regions, but such evidence is scarce and urgently needed in developing countries/regions. Mortality case-control studies could be a quick and low cost alternative to cohort study design. Smoking-attributable mortality was estimated using mortality case-control studies, but the effects of quitting have not been reported. Evidence on whether the benefits of quitting can be observed in mortality case-control studies is needed. Objectives: 1. To critically review the methods used in previous mortality case-control studies. 2. To examine the association between quitting smoking and total- and cause-specific mortality in Hong Kong, using the Hong Kong LIfestyle and MORtality (HK LIMOR) data. 3. To analyse and compare the effects of using different definitions of cases and controls on the association between the health benefits of quitting and total- or cause-specific mortality using the HK LIMOR data. Methods: The HK LIMOR study, a large population-based case-control study, included 81% of all registered deaths at age 30+ years from all four Hong Kong death registries in 1998, with information on duration of quitting collected in the second half of the year. Different definitions of cases and controls were used in previous mortality case-control studies. The main analysis followed the definitions in Sitas et al 2013. Cases were deaths from diseases that could be affected by smoking (N=19,526); controls were deaths from all non-smoking related causes (N=6,076). Two other definitions (Liu et al 1998 and Alam et al 2013) were used for sensitivity analyses. Unconditional logistic regression was used to calculate adjusted odds ratios of total-cause and cause-specific mortality by smoking and quitting status, duration of quitting, and age at quitting, adjusting for sex and age at death. Results: 1. Mortality case-control study design was used to estimate smoking-attributable mortality only in developing regions, except Hong Kong. There were considerable variations in data collection methods and definitions of cases and controls. 2. Compared with continuing smokers, sex- and age-specific (middle age at death [35-64 years] and old age [65-94 years]) risk reductions from quitting were observed for total deaths of interest and 9 other smoking-related diseases. Dose-response relations across mortality risk reductions with quitting duration and age at quitting were found. 3. Varied definitions of cases and controls in mortality case-control studies yielded different results in middle age at death by quitting status, duration of quitting and age at quitting for total deaths of interest, lung cancer and cardiovascular disease mortality, but the results were similar in old age. Conclusion: The HK LIMOR is the first mortality case-control study that has shown health benefits (mortality risk reduction) of quitting smoking. Our results are consistent with the findings from cohort studies. In addition, the mortality case-control study design seems to be more practicable to estimate and monitor the harms of smoking and the benefits of quitting in both developed and developing regions. Subjects: Smoking cessation - Health aspects - China - Hong Kong Mortality - China - Hong Kong

Epidemiology For The Uninitiated

Author : David Coggon
ISBN : 9781405146104
Genre : Medical
File Size : 47. 76 MB
Format : PDF, ePub, Docs
Download : 158
Read : 1039

Get This Book


This perennial bestseller is an ideal introductions to epidemiology in health care. The fifith editon retains the book's simplicity and brevity, at the same time providing the reader with the core elements of epidemiology needed in health care practice and research. The text has been revised throughout, with new examples introduced to bring the book right up to date.

Improving The Efficiency Of Nested Case Control Studies Of Interaction By Selecting Controls Using Counter Matching On Exposure

Author :
ISBN : OCLC:675307735
Genre :
File Size : 54. 96 MB
Format : PDF, ePub
Download : 735
Read : 300

Get This Book



Some Design Problems In Case Control Studies

Author : Jahar Bikram Choudhury
ISBN : OCLC:221977370
Genre : Epidemiology
File Size : 69. 24 MB
Format : PDF, Mobi
Download : 775
Read : 908

Get This Book



Top Download:

Best Books