RT Journal A1 Graber ML, Wachter RM, Cassel CK T1 BRinging diagnosis into the quality and safety equations JF JAMA JO JAMA YR 2012 FD September 26 VO 308 IS 12 SP 1211 OP 1212 DO 10.1001/2012.jama.11913 UL http://dx.doi.org/10.1001/2012.jama.11913 AB Cases of delayed, missed, and incorrect diagnosis are common, with an incidence in the range of 10% to 20%.1 Some errors in diagnosis stem from mistakes in the interpretation of diagnostic tests. For example, pathology, radiology, and the clinical laboratory each have error rates of 2% to 5%. Superimposed on these testing errors are the ubiquitous system-related errors encountered in every health care organization, as well as cognitive errors caused by faulty clinical reasoning. Diagnostic errors do not occur only in connection with unusual conditions but span the breadth of clinical medicine, from rare disorders to commonplace ones like anemia and asthma.2- 3