A Systematic Review of Gender Disparity in the Authorship of Clinical Trials and Clinical Practice Guidelines in Various Medicine Subspecialties.

Authorship in clinical trials and clinical practice guidelines is considered prestigious and is associated with broader peer recognition. This systematic review investigated female representation among studies reporting authorship trends in clinical trials or clinical practice guidelines in different medicine subspecialties. Our search strategy yielded 836 articles, of which 30 met the inclusion criteria. Our findings indicate that females are severely underrepresented in authorship of clinical trials and clinical practice guidelines. Although the proportions of females may have improved in the past decade, the gains are marginal. Notably, studies in this domain predominantly focus on first/last authorship positions, and whether females are underrepresented in other positions as collaborative partners is currently unknown. Also, authorship trends in clinical trials or clinical practice guidelines of most medicine subspecialties besides cardiovascular medicine remain under-researched. Hence, standardizing the methodology for studying gender disparity in research output for comparative analysis between different subspecialties is as urgent as addressing the gender disparity in authorship.