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Bio-Algorithms and Med-Systems

Editor-in-Chief: Roterman-Konieczna , Irena


CiteScore 2018: 0.29

SCImago Journal Rank (SJR) 2018: 0.129
Source Normalized Impact per Paper (SNIP) 2018: 0.324

ICV 2018: 120.80

Online
ISSN
1896-530X
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Techniques of Nominal Data Analyses

Andrzej Stanisz
  • Jagiellonian University Medical College, Department of Bioinformatics and Telemedicine, Łazarza 16, 31-530 Kraków, Poland
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/ Elżbieta Broniatowska
  • Jagiellonian University Medical College, Department of Bioinformatics and Telemedicine, Łazarza 16, 31-530 Kraków, Poland
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Abstract

Several advanced techniques for statistical analysis of nominal data were discussed to show how interesting associations between examined variables can be obtained using correspondence analysis, logistic regression and log-linear models. All these techniques are introduced on the example of medical data connected with the patients being on the curative diet. The studied data concerns four nominal variables: breaking the diet, overcoming diseases requiring the curative diet, sex and age of patient. Applied analyses were used for searching which of factors mentioned above influence on breaking the diet. The most popular technique in this case, chi-squared test of independence, indicates that only the age and illnesses overcoming before are related with breaking the diet whereas the sex is factor which does not have any relationship with the diet breaking. However, the deeper analysis revealed that we can not omit this variable in our research. Application of more compound statistical methods show the importance of age and sex in breaking the curative diet in detail. Presented methodology can be successfully applied not only in medicine but to data coming from different branches of science as well.

Keywords: logistic regression; generalized linear model; correspondence analysis; log-linear analysis

About the article

Received: 2012-02-29

Revised: 2012-03-21

Accepted: 2012-03-26

Published in Print:


Citation Information: Bio-Algorithms and Med-Systems BAMS, Volume 8, Pages 237–254, ISSN (Online) 1896-530X, ISSN (Print) 1895-9091, DOI: https://doi.org/10.2478/bams-2012-0016.

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©Jagiellonian University, Medical College, Kraków, Poland, 2012.

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