title: Intensive Care Unit Staff and Resource Utilization: Is It an Effective Factor?
abstract: BACKGROUND
  The aim of present study was to determine the impact of two different ICU management model, open and semi closed, on resources utilization in intensive care unit.
  
  
  METHODS
  Retrospective cohort analysis using data from hospital database was applied to compare the effect of ICU management model on ICU length of stay and bed disposition of 1064 patients admitted to the general ICU of Imam Khomeini Hospital of Tehran, Iran during the two consecutive 12-month periods from Mar, 2009 to Feb, 2010.
  
  
  RESULTS
  In open and semi closed interval 380 and 684 patients were admitted to ICU respectively. There was no significant difference in age, gender and severity of illness (based on APACHE-II score) and nurse to bed ratio between two groups. Average ICU length of stay, net mortality rate and bed turnover rate were lower in semi closed model than open model management significantly (P<0.05).
  
  
  CONCLUSIONS
  Semi closed model improves patient care and lead to lower mortality rate and resources utilization too.
authors.affiliation: 1. Dept. of Anesthesiology, Arak University of Medical Sciences , Arak, Iran.
authors.forename: Majid
authors.initials: M
authors.lastname: Golestani Eraghi
authors.affiliation: 2. Dept. of Anesthesiology and intensive care, Tehran University of Medical Sciences , Tehran, Iran.
authors.forename: Mohammad Taghi
authors.initials: MT
authors.lastname: Beigmohammadi
authors.affiliation: 3. Dept. of Anesthesiology and intensive care, Tehran University of Medical Sciences , Tehran, Iran.
authors.forename: Ali Akbar
authors.initials: AA
authors.lastname: Soleimani
authors.affiliation: 4. Dept. of Clinical Pharmacy, College of Pharmacy, Tehran University of Medical Sciences , Tehran, Iran.
authors.forename: Mojtaba
authors.initials: M
authors.lastname: Mojtahedzadeh
keywords: Economics; Health resources; Intensive care units; Length of stay