Limited English Proficiency as a Barrier to Inclusion in Emergency Medicine-Based Clinical Stroke Research

Aims: Individuals with Limited English Proficiency (LEP) represent a growing percentage of the U.S. population yet face inequities in health outcomes and barriers to routine care. Despite these disparities, LEP populations are often excluded from clinical research studies. The aim of this study was to assess for the inclusion of LEP populations in published acute care stroke research in the U.S. Methods: A systematic review was conducted of publications from three databases using acute care and stroke specific Medical Subject Heading key terms. The primary outcome was whether language was used as inclusion or exclusion criteria for study participation and the secondary outcome was whether the study explored outcomes by language. Results: A total of 167 studies were included. Twenty-two studies (13.2%) indicated the use of language as inclusion/exclusion criteria within the manuscript or dataset/registry and only 17 studies (10.2%) explicitly included LEP patients either in the study or dataset/registry. Only four papers (2%) include language as a primary variable. Conclusions: As LEP populations are not routinely incorporated in acute care stroke research, it is critical that researchers engage in language-inclusive research practices to ensure all patients are equitably represented in research studies and ultimately evidence-based practices.