The Official STOP-Bang Questionnaire Website
About Frances Chung

Frances Chung MBBS, FRCPC
Frances Chung is a Professor of Anesthesiology at University Health Network, University of Toronto. She is the founding president and the past president of the Society of Anesthesia and Sleep Medicine. She was a past president of Society For Ambulatory Anesthesia. Her research interests include perioperative medicine, ambulatory anesthesia, and sleep apnea. She developed the STOP-Bang questionnaire, a widely used screening tool for obstructive sleep apnea ( She also developed the PADS score, the Postanesthesia Discharge Score for discharging ambulatory patients home after outpatient surgery.

Dr. Chung's research has been recognized by multiple awards including the Canadian Anesthesiologist's Society Research Recognition Award, Society For Ambulatory Anesthesia Distinguished Services Award, and the Royal College of Physicians and Surgeons of Canada's McLaughlin-Gallie Visiting Professorship. She has over 250 publicatons.