172: Towards Gender Equality And Equity In Radiation Oncology: Gender Representation Trends In Canadian Trainees And Radiation Oncologists From 1994 To 2019

a lower but increasing number of palliative cases are being reviewed. Overall, RTPPR represents an important, though time consuming and costly process. Radical plan review rates were consistently higher in more regimented, higher attendance, higher opportunity cost RTPPR groups, but it remains unclear if error detection rates are superior. Opportunities to measure and increase actionable event detection should be explored. Human health resource time and opportunity costs have been increasing, despite stable or decreasing overall proportion of cases being reviewed. Increasing volumes, and complexity within the case mix of palliative cases (IMRT, SRS for brain metastases, SBRT for oligometastatic disease) will continue to elevate demands on timely and purposeful RTPPR, opening the door for innovation.