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Table 1 Results of a literature review conducted in the medical database MEDLINE (1980–2006) about statistical methods found in immunological studies investigating cytokine expressions.

From: A guide to modern statistical analysis of immunological data

Statistical methods

Number of references

Univariate techniques

 

Analysis of variance

2908

T-test

420

Mann-Whitney U-test

316

Wilcoxon/McNemar test

193

Univariate linear regression

163

Bivariate correlation analysis

157

Kruskal-Wallis H-test

95

Repeated measures analysis of variance

31

Friedman test

7

Non linear regression

5

Multivariate techniques

 

Logistic regression

629

Cluster analysis

192

Multivariate analysis of variance

144

Multiple linear regression

91

Factor analysis/Principal components analysis

80

Analysis of covariance

56

Linear discriminant analysis

51

Partial correlation coefficient

24

Multinomial logistic regression

9

Multivariate analysis of covariance

7

Path analysis/Structural equation modelling

4