Naked Statistics: Stripping the Dread from the Data

by Charles Wheelan

Cardiologists obviously care about their “scorecard.” However, the easiest way for a surgeon to improve his mortality rate is not by killing fewer people; presumably most doctors are already trying very hard to keep their patients alive. The easiest way for a doctor to improve his mortality rate is by refusing to operate on the sickest patients. According to a survey conducted by the School of Medicine and Dentistry at the University of Rochester, the scorecard, which ostensibly serves patients, can also work to their detriment: 83 percent of the cardiologists surveyed said that, because of the public mortality statistics, some patients who might benefit from angioplasty might not receive the procedure;