Burden of serious harms from diagnostic error in the USA.

Previous research has found that three diseases (vascular events, infections, and cancers) account for approximately 50% of all serious misdiagnosis-related harm. Based on a sample of 21.5 million US hospital discharges, the authors estimated that 795,000 adults in the US experience serious misdiagnosis-related harm (permanent morbidity or mortality) attributable to these three disease categories each year.