A Systematic Review of the Impact of Patient-Physician Non-English Language Concordance on Quality of Care and Outcomes.

Approximately 25 million people in the USA are limited English proficient (LEP). When LEP patients receive care from physicians who are truly language concordant, some evidence show that language disparities are reduced, but others demonstrate worse outcomes. We conducted a systematic review of the literature to compare the impact of language-concordant care for LEP patients with that of other interventions, including professional and ad hoc interpreters.