The impact of COVID-19 on public and private emergency departments in Queensland, Australia

Objective COVID-19 affected health care globally. The aim of this study was to investigate the impact of COVID-19 on both public and private emergency departments (EDs). Methods This was a retrospective cohort study of ED presentations made to three private and two public hospital EDs located in one region in Queensland. Presentation rates per 1000 population and incident rate ratios (IRR) for three time periods: T1: pre-pandemic (March-June 2018/2019), T2: initial restrictions (March-June 2020), and T3: restrictions easing (March-June 2021) were calculated. Linear trends were produced to describe pre- and post-pandemic changes. Additional outcomes reported for public EDs included ED length of stay (LoS) and cost. Results In T2, both public and private ED presentation rates decreased by 12% (overall IRR 0.88; 95% confidence interval (CI): 0.87-0.89). Private EDs experienced a quicker and greater return of patient volumes in T3, exceeding T1 levels. The median ED length of stay decreased and then increased above pre-pandemic levels (T1: 159 min, T2: 151 min, T3: 201 min). Total costs were higher during T2 but then decreased during T3, below that of T1 (T1: A$652, T2: A$791, T3: A$566). Between February 2020 and June 2021, 269 people tested positive for SARS-CoV-2, 19 of whom (7.1%) interfaced with the ED. Conclusions During initial COVID-19 restrictions, a shift towards fewer ED presentations was observed. Private ED presentations rebounded more quickly than public. Few COVID-19 patients interfaced with an ED. Systems and public-private agreements made during this time appeared to protect EDs and soften the impact of reduced volumes for the private sector.