“…The barriers and facilitators to partnering with frail and/ or seriously ill patients (e.g., funding, infrastructure, role clarity, capacity building for both patients and researchers, structural inclusivity, trust and willingness to collaborate) are similar to those reported in other systematic and scoping reviews of patient engagement [2,12,22,28,[75][76][77]. When engaging frail and/or seriously ill patients as partners across the research cycle, the degree of illness and/or frailty, and potential instability in patients' health warrants more concern for [7, 45, 47, 51, 53-55, 62, 63, 69, 70] 11 (37%) Emotional/peer support [7, 51, 53, 55, 57, 62-64, 66, 69, 70] 5 (17%) Emotional vulnerability or emotional distress [7,47,55,71,72] 10 (33%) Incorporation of patients' priorities for research and outcomes [7,24,50,51,54,56,57,61,65,67] 8 (27%) Develop new knowledge and skills [45,51,55,59,60,62,63,71] 5 (17%) Physical/cognitive fatigue [7,47,53,55,72] 3 (10%) Acquire insights into disease and treatment [51,55,69] Researcher -Perceived Impacts…”