Am J Public Health volume 108, issue 5, P616-619 2018 DOI: 10.2105/ajph.2018.304337 View full text
Miguel A. Hernán

Abstract: Causal inference is a core task of science. However, authors and editors often refrain from explicitly acknowledging the causal goal of research projects; they refer to causal effect estimates as associational estimates. This commentary argues that using the term "causal" is necessary to improve the quality of observational research. Specifically, being explicit about the causal objective of a study reduces ambiguity in the scientific question, errors in the data analysis, and excesses in the interpretation of…

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