Assessing the impact of patient-involvement healthcare strategies on patients, providers, and the healthcare system: A systematic review.

Background: Patient involvement has become an important and lively field of research, yet existing findings are fragmented and often contested. Without a synthesis of the research field, these findings are of limited use to scholars, healthcare providers, or policy-makers.

Objective: Examine the body of knowledge on patient involvement to determine what is known, contested, and unknown about benefits, risks, and effective implementation strategies.