CPOE systems, on average, missed one half of routine medication order errors and a third of potentially fatal order errors during a study The Leapfrog Group conducted of 214 hospitals using its Web-based simulation tool. Leapfrog CEO Leah Binder characterized the results as “disturbing.” On a positive note, of the 102 hospitals that retook the test following a six-month interval, 94 percent showed some level of improvement. During the time between tests, hospitals adjusted their systems and protocols, said Binder.