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. 2021 Dec 7;37(13):110169. doi: 10.1016/j.celrep.2021.110169

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© 2021 The Authors

Since January 2020 Elsevier has created a COVID-19 resource centre with free information in English and Mandarin on the novel coronavirus COVID-19. The COVID-19 resource centre is hosted on Elsevier Connect, the company's public news and information website. Elsevier hereby grants permission to make all its COVID-19-related research that is available on the COVID-19 resource centre - including this research content - immediately available in PubMed Central and other publicly funded repositories, such as the WHO COVID database with rights for unrestricted research re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for free by Elsevier for as long as the COVID-19 resource centre remains active.

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Comparison of mean antibody levels in patients with COVID-19 with additional health record data

Mean antibody levels in 96 patients with COVID-19 were compared to additional health record data. Kendall’s correlation coefficients (τ) between quantitative assay results and age, interleukin-6 levels at admission as well as at their individual peak, days patients spend hospitalized or admitted to intensive care units (ICUs) are depicted in (A). (B and C) Mean antibody levels in the same patients (dots) compared to sex (B) and presence of comorbidities (C) as violin plots. In (B) and (C), differences between the groups were analyzed for their statistical significance using the Wilcoxon rank-sum test with continuity correction. ^∗p ≤ 0.05, ^∗∗p ≤ 0.01, ^∗∗∗p ≤ 0.001. NFU, normalized fluorescence units.