Hospital patients should be able to rely on the expertise of their nurses and clinical staff as they undergo treatment and recuperation, rather than having to worry if they are putting themselves in harm's way. A 2016 report appearing in Johns Hopkins Medicine found that over 250,000 deaths occur in the U.S. due to medical error in the hospital setting. When comparing that figure with total U.S. deaths, hospital-based medical errors account for 9.5 percent of all deaths in this country, ranking third behind heart disease and cancer.