This aphorism has been deliciously, but, alas, incorrectly attributed to Albert Einstein (the saying actually has mixed origins, but credit properly might be given to sociologist William Bruce Cameron, writing in 1963).
But, whatever its provenance, the saying is particularly appropriate in describing the woeful lack of attention paid to the long-standing problem of diagnosis errors in the provision of health care services.
Last week academic researchers from Baylor and the University of Texas published important research estimating that one in 20 adults in the U.S., or roughly 12 million people every year, receive an error of diagnosis—a wrong, missed or delayed diagnosis—in ambulatory care.
This likely represents a conservative estimate of the incidence of such errors in ambulatory care and does not attempt to include inpatient hospital care or care provided in nursing homes and post-acute care facilities, such as rehab hospitals.
The news media correctly decided that this peer-reviewed finding deserved prominent attention—it was a lead story on “NBC Nightly News” and other national news programs.
It seems that attaching a large number to the prevalence of such errors provided the needed news hook to give the problem the attention it has long deserved. Surveys reveal that the public is worried as much about a misdiagnosis or missed diagnosis as any other quality and safety issue in health care.
Autopsy studies performed over time find that unacceptably high rates of diagnosis errors persist; similarly, diagnosis errors continue to represent a leading cause of medical malpractice suits.
But even without newsworthy body counts, the problem of diagnosis errors has been known to clinicians for decades, if largely ignored by stakeholders and policy-makers as a major quality and safety problem.