Sex contextualism in laboratory research: Enhancing rigor and precision in the study of sex-related variables

Cell. 2024 Mar 14;187(6):1316-1326. doi: 10.1016/j.cell.2024.02.008.

Abstract

Understanding sex-related variation in health and illness requires rigorous and precise approaches to revealing underlying mechanisms. A first step is to recognize that sex is not in and of itself a causal mechanism; rather, it is a classification system comprising a set of categories, usually assigned according to a range of varying traits. Moving beyond sex as a system of classification to working with concrete and measurable sex-related variables is necessary for precision. Whether and how these sex-related variables matter-and what patterns of difference they contribute to-will vary in context-specific ways. Second, when researchers incorporate these sex-related variables into research designs, rigorous analytical methods are needed to allow strongly supported conclusions. Third, the interpretation and reporting of sex-related variation require care to ensure that basic and preclinical research advance health equity for all.

Keywords: gender; health equity; precision medicine; research methods; rigor and reproducibility in science; sex as a biological variable; sex contextualism; sex differences.

Publication types

  • Review

MeSH terms

  • Biomedical Research*
  • Health Equity*
  • Humans
  • Sex*