Critical Care Forum has “published”:http://ccforum.com/content/10/6/R21 a study on CPOE usage in an ICU entitled “Impact of computerized physician order entry on medication prescription errors in the intensive care unit: a controlled cross-sectional trial”
Medication errors in the intensive care unit (ICU) are frequent and lead to attributable patient morbidity and mortality, increased length of ICU stay and substantial extra costs. We investigated if the introduction of a computerized ICU system (Centricity Critical Care Clinisoft, GE Healthcare) reduced the incidence and severity of medication prescription errors (MPEs).

This is good news for any well designed, well implemented and properly used system.