Corrigendum to ‘Impaired systemic oxygen extraction long after mild COVID-19: potential perioperative implications’ (Br J Anaesth 2022; 128: e246–9)

An astute reader noted an error in the reported values for oxygen delivery (DO₂) in our recent publication describing the response to invasive cardiopulmonary exercise testing (CPET) in patients nearly 1 yr after recovery from severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) infection.¹ In Table 1, the DO₂ data are off by a factor of 10. Accordingly, in the table CPET – resting DO₂ should be 14 (2.4) ml min^–1 kg^–1 for post-COVID-19 patients and 12 (3.5) ml min^–1 kg^–1 for control patients. Similarly, CPET – peak DO₂ should be 36 (14) ml min^–1 kg^–1 for post-COVID-19 patients and 42 (15) ml min^–1 kg^–1 for controls.

Importantly, this error does not alter the intent or conclusions of the report. We thank the reader for their careful attention to detail. The corrected table appears below.

Table 1.

Baseline characteristics and relevant cardio-pulmonary exercise data. Data presented as mean (standard deviation) or median (inter-quartile range [IQR]). Highlighted rows emphasise differences between groups. DO₂, oxygen delivery; EO₂, oxygen extraction ratio; FEV₁, forced expiratory volume in 1 s; FVC, forced vital capacity; SaO₂, oxygen saturation in arterial blood; VO₂, oxygen consumption. Data adapted from Ref. 1.