CORRECTION to: “Global mortality and readmission rates following COPD exacerbation-related hospitalisation: a meta-analysis of 65 945 individual patients” (ERJ Open Res 2024; 10: 00838-2023)

In the originally published version of this article there was an error in the follow-up time and total number of readmissions in two datasets of the hospital readmission data subset. This concerned the datasets of QUINTANA et al. [1] and LOPEZ-CAMPOS et al. [2]. Instead of a follow-up time of 365 days, the correct follow-up times were 60 and 90 days, respectively. In addition, instead of total readmission rates of 19.5% and 26.6%, the correct readmission rates were 26.0% and 35.1%, respectively. As a result, the median follow-up time in the hospital readmission data subset changed from 365 days to 90 days, whereas the overall readmission rate changed from 15 195 (32.8%, 95% CI 32.4–33.3%) to 16 646 (36.0%, 95% CI 35.5–36.4%). Corrections have been made accordingly to the Results, including table S7 and figure S8, and to the Discussion. In addition, there was an error in the coding for the 30-, 90- and 365-day categories related to post-discharge mortality and hospital readmission. The initial coding failed to capture all possible conditional statements needed to accurately capture outcome statuses based on follow-up times. This was particularly relevant in studies where the exact time until the event was not known, and was instead represented by the predetermined, or set, study follow-up period. These corrections altered the pooled 30-, 90- and 365-day post-discharge mortality and hospital readmission rates from 1.8% to 2.0%, from 5.5% to 6.4%, from 10.9% to 12.2%, and from 7.1% to 11.8%, from 12.6% to 26.5% and from 32.1% to 38.2%, respectively. Corrections have been made accordingly to the Abstract, Results (including figures 5 and 7), and to the Discussion. Figures S3 and S7 have been aligned to display only the percentages of patients with a known time of event, categorised by time intervals during follow-up after hospital discharge from the index event. Importantly, the corrections do not change the scientific conclusions drawn in the article.