Once computerized physician order entry system was fully developed at a teaching hospital, 80% medication mistakes (except missed doses) were prevented.
Medication mistakes that caused injury or had the potential to cause injury were reduced by 88%.

Source: Adapted with permission from D.W. Bates et . al. 1999. “The Impact of Computerized Physician Order Entry on Medication Error Prevention.” Journal of the American Medical Informatics Association 6(4):313-21.