Evidence-basing for quality improvement; bringing clinical practice guidelines closer to their promise of improving care practices.

Findings suggest that CPGs mostly fail to integrate different epistemologies needed to inform the quality improvement of clinical practice. To bring CPGs closer to their promise, guideline scoping should maintain a focus on the most pertinent quality issues that point developers toward the most fitting knowledge for the question at hand, stretching beyond the PICO format. To address questions that lack a strong evidence base, developers actually need to appeal to other sources of knowledge, such as quality improvement, expert opinion, and best practices. Further research is needed to develop methods for the robust inclusion of other types of knowledge.