20 percent of patients with serious conditions are first misdiagnosed, study says

More than 20 percent of patients who sought a second opinion at one of the nation’s premier medical institutions had been misdiagnosed by their primary care providers, according to new research published Tuesday.

Twelve percent of the people who asked specialists at the Mayo Clinic in Rochester, Minn., to review their cases had received correct diagnoses, the study found. The rest were given diagnoses that were partly in line with the conclusions of the Mayo doctors who evaluated their conditions.

The results are generally similar to other research on diagnostic error but provide additional evidence for advocates who say such findings show that the health-care system still has room for improvement.

Lenny Bernstein, Washington Post, April 4, 2017