Established in 1998, the Centre for Health Evaluation and Outcome Sciences (CHÉOS) is a group of experienced health outcomes researchers and support staff based at St. Paul’s Hospital. We evaluate the effectiveness of health interventions in populations to understand how to improve health and transform health systems for the future. CHÉOS is proud to be recognized as one of Canada's foremost health outcomes research organizations. Bridging the gap between data, research, and care, CHÉOS is a collaboration between cross-disciplinary scientists and expert research staff. The Centre influences change and improve patient care and health systems by empowering decision-makers to find positive, evidence-based solutions.

In addition to undertaking our own research, CHÉOS is dedicated to providing research support services for both health outcomes research and clinical trials. The Centre is committed to creating an inclusive, dynamic, and cooperative work environment in which younger researchers are mentored, established researchers are supported, and all participants are encouraged to pursue personal and professional challenges.