What do we really know about the quality of care we get? The Fifth Estate set out on a nine-month quest to uncover data about Canadian hospitals’ performance and make it public. In this sweeping initiative, CBC based its assessment on data collected from hospitals by the Canadian Institute for Health Information (CIHI), a publicly funded, non-profit organization that gathers and analyzes data on Canadian hospital performance. A five-member expert panel advised CBC on the selection and use of the data. Data used by the CBC included rates of patients who died after major surgeries, who were readmitted after treatment and who experienced unexpected complications, known as adverse events, tied to nursing care during a hospital stay.