Decreasing mortality rates in ICU during the COVID‐19 pandemic

We would like to thank the readers of Anaesthesia for their interest in our recent systematic review and meta-analysis of intensive care unit (ICU) mortality in patients with COVID-19, in which we found that reported mortality rates have fallen as the pandemic has progressed [1]. The process of post-publication peer review has highlighted that we could have presented the changes in mortality rate over time more clearly. Combined ICU mortality (95%CI) was 59.5% (39.8–76.5%) in studies published before the end of March 2020 and 41.6% (34.0–49.7%) for all included studies to the end of June 2020. Figure 1 was not included in the original published manuscript or supplementary material, but we include it here to provide a clear illustration of the reported mortality rate for completed intensive care admissions over the course of the pandemic.