Seven lessons from the field: Research on transformation of health systems for older adults.

Research can play a key role in efforts to transform healthcare systems. Our group's long-standing research program has been aimed at understanding how to support greater integration and coordination of healthcare services for older adults with complex conditions. Drawing on this experience, we outline seven "lessons from the field" that highlight research-related challenges that may hinder health system transformation. These challenges relate to conducting research in a complex and constantly changing system; co-design approaches that are simultaneously deemed essential yet too ambiguous to fund; patient, family caregiver, and citizen engagement; limited funding for health systems research; and lack of use of research findings. We hope that these reflections will help to inform an ongoing conversation about how these challenges might be overcome.