PMID: 6974436Apr 1, 1981Paper

Biometry, data registration and data processing in rheumatology

Zeitschrift für die gesamte innere Medizin und ihre Grenzgebiete
P Fischer, P Wienicki

Abstract

In the research of rheumatism there appear subjective, semiobjective and objective findings, by the combination of which criteria of activity, function and progression are recognized. Their qualitative criteria are described. Apart from an economically justifiable recording of data, in which regulations of codification and lists of recording of data are separated, the establishment of important statistical numbers of measure (mean value, standard deviation, variation coefficient) is described and explained, by which methods comparisons of groups (t-test after Student) for normally distributed measuring sizes, chi2-test for qualitative characteristics and categories and correlations (correlation coefficient after Bravais-Pearson, rank correlation after Spearman) are performed. The methods are described thus that they may be repeated ubiquitously and not only in the research of rheumatism, be it with or without electronic data processing devices. The factor analysis, which cannot be realised without using data processing, but by means of which we succeed in investigating its structural connections, is also explained. This is done with regard to the possible reduction of extensive laboratory investigation and the connected with th...Continue Reading

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