Patient and public involvement in the development of clinical practice guidelines: a scoping review.

Our scoping review has revealed knowledge gaps to inform future research in several ways: replication, terminology and inclusion. First, no standard approach to PPI in CPG development could be inferred from the research. Second, inconsistent terminology to describe patients and publics reduces clarity around which patients and publics have been involved in developing CPGs. Finally, the under-representation of research describing PPI in the development of screening, as opposed to treatment, CPGs warrants further attention.