Dr. Ava John-Baptiste is an assistant professor in the Departments of Anesthesia and Perioperative Medicine, Epidemiology and Biostatistics and the Interfaculty Program in Public Health at Western University. She is also a health economist at the Centre for Medical Evidence, Decision Integrity and Clinical Impact (MEDICI Centre), a hospital-based health technology assessment unit. Dr. John-Baptiste collaborates with clinicians and scientists on initiatives to appraise the safety, effectiveness and cost-effectiveness of interventions in the hospital and in the community. Her research interests include economic evaluation of health technologies to support decision making, cost-analysis and cost-reduction in the hospital setting, evidence synthesis using systematic review and decision analytic modeling, improving the perioperative care of frail older patients and disinvestment in technologies of low or uncertain value.