The association between ICU occupancy rate and each of premature discharge, early readmission and mortality rate

Abstract

Background: Ocupancy of intensive care unit (ICU) is likely influenced by patient's length of
stay (LOS) in ICU, the rate of patient's premature discharge, early readmission especially within
48 hours from discharge and mortality rate. The aim of this study was evaluation of the overall
occupancy rate of Emergency ICU at Zagazig University Hospitals, Egypt, during the six month
study period and its association with each of premature discharge rate, early readmission rate
and mortality rate.
Patients and Methods: The files of the admitted patients in Emergency ICU at Zagazig
University Hospitals, Egypt, from the 1st of May to 31st of October, 2018 were inspected to
evaluate the overall occupancy, premature discharge, early readmission and mortality rates and
the association between occupancy rate and each of premature discharge, early readmission and
mortality.
Results: The overall occupancy rate was 92.6 %. The overall mean premature
discharge rate was 18.6%, the overall mean early readmission rate was 24.1% and the overall
mean mortality rate was 38.4%. Premature discharge, early readmission and mortality were
associated with statistically significant higher occupancy rates than those associated with
planned discharge, no readmission and survival. Conclusion: This study revealed that
premature discharge, early readmission and mortality were associated with significantly
higher occupancy rates than those associated with planned discharge, no readmission and
survival.