Outcomes of establishing an acute assessment unit in the general medical service of a tertiary teaching hospital

Jordan Li, Tuck Yong, Denise Bennett, Laurie O'Brien, Susan Roberts, Paul Hakendorf, David Ben-Tovim, Paddy Phillips, Campbell Thompson

    Research output: Contribution to journalArticlepeer-review

    30 Citations (Scopus)


    Objective: To evaluate the impact of an acute assessment unit (AAU) on length of hospital stay (LOS), emergency department (ED) waiting times, direct discharge rate, unplanned readmission rate and all-cause hospital mortality of general medical patients. Design and setting: Retrospective comparison of data for general medical patients admitted to a tertiary teaching hospital in Adelaide, South Australia, before and after the establishment of an AAU (reference years, 2003 [before] and 2006 [after]). Main outcome measures: Mean LOS, ED waiting times and all-cause hospital mortality during calendar years 2003 (pre-establishment) and 2006 (post-establishment). Results: Following the establishment of an AAU, the mean LOS shortened (from 6.8 days in 2003 to 5.7 days in 2006; P < 0.001) despite a 50.5% increase in the number of admissions (from 2652 to 3992). The number of admitted patients waiting in the ED more than 8 hours for a hospital bed decreased (from 28.7% to 17.9%; P < 0.001), as did the number waiting more than 12 hours (from 20.2% to 10.4%; P < 0.001). The rates of unplanned readmission within 7 and 28 days did not change. The all-cause hospital mortality for general medical admissions was 4.6% in 2003 v 3.7% in 2006 (P = 0.056). Conclusion: The establishment of an AAU within the general medical service coincided with decreases in both LOS and ED waiting times, despite a 50% increase in admissions. This structural reform in the process of acute medical care may have contributed to the improvement in these key health care performance indices without compromising the quality of patient care.

    Original languageEnglish
    Pages (from-to)384-387
    Number of pages4
    JournalMJA Medical Journal of Australia
    Issue number7
    Publication statusPublished - 5 Apr 2010


    Dive into the research topics of 'Outcomes of establishing an acute assessment unit in the general medical service of a tertiary teaching hospital'. Together they form a unique fingerprint.

    Cite this