What is the role of comorbidity, frailty, and functional status in the decision-making process for older adults with cancer and their family members, oncologists, and family physician?
92 Background: Little is known about the treatment decision making process (TDMP) in older adults (OA) with cancer. The objective of this study is to develop a theoretical framework with the aim to improve the TDMP for this population. Methods: This is a mixed methods multi-perspective longitudinal study. OAs aged > 70 years with advanced prostate, breast, colorectal, or lung cancer, their family members, oncologists and family physicians are invited to participate in individual, semi-structured interviews. Each OA also completes a short survey to characterize their health, functional status, frailty level, decision-making preferences, and satisfaction with the TDMP. The sample is stratified on age (70-79 and 80+) to obtain data saturation for the oldest old. All interviews will be analyzed using the grounded-theory approach. Results: To date, 32 first interviews and 15 second interviews have been completed with 32 older adults, 21 family members and 12 family physicians and 7 cancer specialists. Interviews lasted between 10-60 minutes. Most older adults felt that they should have the final say in the treatment decision, but strongly valued their physician’s opinion. Most participants felt they received enough information, time and support from the oncologist to make their decision. About half the participants went to see their family physician to talk about the diagnosis and plan. Comorbidity and potential side-effects did not play a major role in the decision-making processes for patients and families but it did for oncologists. Family physicians reported they were not involved in treatment decisions, and they preferred more timely information about the patient. Conclusions: This study-in-progress is examining the TDMP from four different perspectives and examining changes over time in the TDMP. Patients and family members were generally satisfied with the treatment decision making process. Final results will be presented at the conference.