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  1. Book ; Online ; Thesis: <dc:title>Charakteristika und Berichtsqualität pädiatrisch-klinischer Fachartikel publiziert im Jahr 2018 – eine methodische Untersuchung</dc:title>

    Kubiak, Charlotte Teresa [Verfasser] / Meerpohl, Jörg J. [Akademischer Betreuer] / Meerpohl, Jörg J. [Sonstige] / Sauerbrei, Wilhelm F. [Sonstige]

    2022  

    Keywords Medizin, Gesundheit ; Medicine, Health
    Subject code sg610
    Language German
    Publisher Universität
    Publishing place Freiburg
    Document type Book ; Online ; Thesis
    Database Digital theses on the web

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  2. Article ; Online: Interpreting results in 2 x 2 tables: part 9 of a series on evaluation of scientific publications.

    Sauerbrei, Wilhelm / Blettner, Maria

    Deutsches Arzteblatt international

    2009  Volume 106, Issue 48, Page(s) 795–800

    Abstract: Background: The findings of epidemiological studies, diagnostic tests, and comparative therapeutic trials are often presented in 2 x 2 tables. These must be interpreted correctly for a proper understanding of the findings.: Methods: The authors ... ...

    Abstract Background: The findings of epidemiological studies, diagnostic tests, and comparative therapeutic trials are often presented in 2 x 2 tables. These must be interpreted correctly for a proper understanding of the findings.
    Methods: The authors present basic statistical concepts required for the analysis of nominal data, referring to standard works in statistics.
    Results: The relative risk and odds ratio are defined to be indices for the relationship between two binary quantities (e.g., exposure--yes/no and disease--yes/no). The topics dealt with in this article include the effect of sample size on the length of the confidence interval and the p-value, and also inaccuracies caused by measuring error. Exposures are often expressed on a three-level scale (none, low, high). The authors also consider the 2 x 3 table as an extension of the 2 x 2 table and discuss the categorization of continuous measurements. Typically, more than one factor is involved in the development of a disease. The effect that a further factor can have on the observed relationship between the exposure and the disease is discussed.
    Conclusions: Sample size, measurement error, categorization, and confounders influence the statistical interpretation of 2 x 2 tables in many ways. Readers of scientific publications should know the inherent problems in the interpretation of simple 2 x 2 tables and check that the authors have taken these into account adequately in analyzing and interpreting their data.
    MeSH term(s) Biometry/methods ; Data Interpretation, Statistical ; Models, Biological ; Models, Statistical ; Peer Review, Research/methods
    Language English
    Publishing date 2009-11-27
    Publishing country Germany
    Document type Journal Article ; Review
    ZDB-ID 2406159-1
    ISSN 1866-0452 ; 1866-0452
    ISSN (online) 1866-0452
    ISSN 1866-0452
    DOI 10.3238/arztebl.2009.0795
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: Übersichtsarbeit. Interpretation der Ergebnisse von 2x2-Tafeln. Teil 9 der Serie zur Bewertung wissenschaftlicher Publikationen. Interpreting Results in 2x2 Tables: Extensions and Problems - Part 9 of a Series on Evaluation of Scientific Publications

    Sauerbrei, Wilhelm / Blettner, Maria

    Deutsches Ärzteblatt : Ausgabe A, Praxis-Ausgabe : niedergelassene Ärzte

    2009  Volume 106, Issue 48, Page(s) 795

    Language German
    Document type Article
    ZDB-ID 1453475-7
    ISSN 0012-1207
    Database Current Contents Medicine

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