Background: Unnecessary admissions of acute cases have major impacts on hospital efficiency and organization. This study is aimed to identify percentage of unnecessary admissions from a hospital emergency department and the reasons why, as well as to quantify the unnecessary hospital days of care generated by these admissions.
Methods: It has been analyzed the appropriateness of 622 admissions made in 2002, selected at random, all of the hospital stays generated by the inappropriate admissions and a representative sample of the appropriate admissions of a second-level hospital in Asturias.