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  • 1
    UID:
    b3kat_BV009533168
    Format: XV, 354 S. , graph. Darst.
    ISBN: 0195076419
    Series Statement: Monographs in epidemiology and biostatistics 22
    Content: The AIDS epidemic has spread worldwide, and nearly 300,000 cases have been reported in the United States alone. Statisticians and epidemiologists are called upon to design and correctly interpret studies on the prevention and control of disease caused by the human immunodeficiency virus (HIV) and to estimate the magnitude and future course of the epidemic
    Content: In addition to a comprehensive discussion of methods for gauging the extent of the epidemic and forecasting AIDS incidence, this book presents methods and results concerning the risks of HIV transmission, the incubation period of HIV infection, markers of disease progression, prevention strategies, including strategies to protect the blood supply, and the evaluation of treatments and vaccines. These topics are presented quantitatively, with an emphasis on the strengths and weaknesses of available data. The book highlights how a naive statistical approach to the design or analysis of such studies can lead to seriously misleading results. The various methods of monitoring and forecasting HIV disease and AIDS incidence are given thorough treatment
    Content: These methods include back-calculation, which the authors developed; interpretations of survey data on HIV prevalence and incidence; mathematical models for HIV transmission; and approaches that combine different types of epidemiological data. Much of the material in this book - such as a discussion of methods for assessing safety of the blood supply. an evaluation of survey approaches and methods to project pediatric AIDS incidence - has not been previously published
    Language: English
    Subjects: Medicine
    RVK:
    RVK:
    Keywords: Aids ; Epidemiologie ; Statistik ; Methode
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  • 2
    UID:
    edochu_18452_4452
    Format: 1 Online-Ressource (22 Seiten)
    ISSN: 1436-1086
    Series Statement: Sonderforschungsbereich 373: Quantification and Simulation of Economic Processes 1997,1997,15
    Content: Epidemiologists sometimes study the association between two measures of exposure on the same subjects by grouping the data into categories that are defined by sample quantiles of the two marginal distributions. Although such grouped data are presented in a twoway contingency table, the cell counts in this table do not have a multinomial distribution. We use the term “bivariate quantile distribution” (BQD) to describe the joint distribution of counts in such a table. Blomqvist (1950) gave an exact BQD theory for the case of only 4 categories based on division at the sample medians. The asymptotic theory he presented was not valid, however, except in special cases. We present a valid asymptotic theory for arbitrary numbers of categories and apply this theory to construct confidence intervals for the kappa statistic. We show by simulations that the confidence interval procedures we propose have near nominal coverage for sample sizes exceeding 90, both for 2 x 2 and 3 x 3 tables. These simulations also illustrate that the asymptotic theory of Blomqvist (1950) and the methods given by Fleiss, Cohen and Everitt (1969) for multinomial sampling can yield subnominal coverage for BQD data, although in some cases the coverage for these procedures is near nominal levels.
    Language: English
    URL: Volltext  (kostenfrei)
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  • 3
    Book
    Book
    Chichester [u.a.] : Wiley
    UID:
    gbv_308338200
    Format: XXI, 978 S , Ill., graph. Darst , 26 cm
    ISBN: 0471866415
    Series Statement: Wiley reference series in biostatistics
    Note: Literaturangaben , Prospekttitel: The encyclopedia of epidemiology
    Language: English
    Subjects: Medicine
    RVK:
    RVK:
    Keywords: Epidemiologie ; Medizinische Statistik ; Methode ; Biometrie ; Wörterbuch
    URL: Cover
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  • 4
    UID:
    b3kat_BV045297395
    Format: xvii, 536 Seiten , Illustrationen , 26 cm
    ISBN: 9781498768580 , 149876858X
    Series Statement: Chapman & Hall/CRC handbooks of modern statistical methods
    Content: 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
    Language: English
    Author information: Gail, Mitchell H.
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