• Lixin Ou, Jack Chen, Arthas Flabouris, Ken Hillman, Michael Parr, and Rinaldo Bellomo.
• Simpson Centre for Health Services Research, South Western Sydney Clinical School, University of New South Wales, Sydney, New South Wales, Australia; Ingham Institute for Applied Medical Research, Liverpool, New South Wales, Australia. Electronic address: lixin.ou@unsw.edu.au.
• J Crit Care. 2018 Oct 1; 47: 232-237.

PurposeHospital variability of postoperative sepsis and sepsis-related mortality after elective CABG surgery was not known in Australia.Material And MethodsPopulation-based analysis of all elective patients who underwent CABG surgery in public and private hospitals between 2007 and 2014 using linked data from the state-wide Admitted Patient Data Collection and the NSW Registry of Births, Deaths, and Marriages.ResultsWe identified 18,928 (9464 pairs) matched patients who had elective CABG surgery in public hospitals (n = 9) and private hospitals (n = 13) during the study period. When compared to public hospital patients, private hospital patients had a significantly lower rate of post-CABG sepsis (13.3 vs 20.4 per 1000 admissions, P < 0.001; treatment effects: -7.1, 95%CI: -11.1 to -3.3), a lower in-hospital mortality rate (6.1 vs 9.9 per 1000 admissions, P = 0.006; treatment effects: -3.8, 95%CI: -6.5 to -1.1), and a lower rate of 30-day readmission (11.9% vs 13.9%, P < 0.001; treatment effects: -2.0%, 95%CI: -3.1% to -1.0%). In addition, for both public and private hospital groups, there were significant differences for all outcomes when comparing the worst and best performance quintile hospitals.ConclusionsHospital variability of postoperative sepsis, in-hospital mortality and readmission after elective CABG existed between and within public and private hospitals.Copyright © 2018 Elsevier Inc. All rights reserved.

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