FIG. 1.

Violin charts of results of anti-Spike-IgG testing for patients with favourable (good) and poor outcomes: (a) Diasorin's Liaison SARS-CoV-2 S1/S2 IgG (cut-off for positivity of >15 u/mL). One result was omitted from the chart as an outlier, of a patient with a favourable outcome, whose antibody titre was estimated to be 2650 u/mL using dilutions, as the upper limit of reporting for the assay is 400 u/mL. (b) Abbott's Architect AdviseDx SARS-CoV-2 IgG II, (cut-off for positivity of 50 u/mL). For both charts the horizontal line and box represent the median and the interquartile range, respectively. The width of the curved shape represents the proportion of patients.