According to an article published in the Journal of General Internal Medicine, counties with teaching medical hospitals experienced a 10% increase in fatal medication errors as compared to counties without teaching medical hospitals.
Of course we've long suspected this. Apparently having better supervision, better hours, CPOE and UpToDate everywhere at the point of care hasn't solved the problem. In fact, CPOE could be making it worse. When new interns arrive, if they've come from another school, as likely as not they have to use an EMR they're not familiar with, having had only a brief orientation period and no secretarial training.