Evaluating professional interpreting services for patients with limited English proficiency in secondary care settings: a scoping review

This review highlights the heterogeneity and limitations in existing outcome measures for evaluating interpreter services. Length of stay and readmission are commonly used but prone to confounding. Disease-specific outcomes may offer greater sensitivity and relevance, especially when adjusted for clinical severity. Future research should prioritise the development of validated, standardised outcome sets that reflect both patient priorities and clinical relevance. These are essential for guiding service improvement and equitable healthcare delivery for LEP populations.