Correlation or regression, that’s the question

in European Journal of Endocrinology
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  • 1 S le Cessie, Clinical Epidemiology, Leiden University Medical Center, Leiden, Netherlands
  • 2 R Groenwold, Clinical Epidemiology, Leids Universitair Medisch Centrum, Leiden, 2333ZA, Netherlands
  • 3 O Dekkers, Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, Netherlands

Correspondence: Saskia le Cessie, Email: S.le_Cessie@lumc.nl

There are different ways to quantify the relation between two or more continuous variables. Some researchers use correlation coefficients; others will apply regression methods such as linear regression. In this paper we show that the choice between correlation and regression is not purely a statistical one, but largely depends on the research aims. Importantly, one should always inspect the data before using either of the two methods.

 

     European Society of Endocrinology

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