What is the evidence base for public involvement in health‐care policy?: results of a systematic scoping review

Despite the growing body of work on public involvement in health-care policy, evidence of its impact remains scarce; thus, firm conclusions about involvement activities that are appropriate and effective for policy development are difficult to draw. However, focus on outcomes risks missing the normative argument that involving the public in the health-care policy process may be seen to be of intrinsic value.