Fig. 6.

Anti-spike and anti-nucleocapsid protein antibodies over time in 32 dialysis and kidney transplant patients with SARS-CoV-2 infection. Regression lines with 95% confidence intervals from linear mixed models with quadratic time trend for anti-S (top row) and anti-N (bottom row) antibody levels in the first 60 days following onset of COVID-19 symptoms. The comparison between dialysis (green line) and kidney transplant (violet line), adjusted for COVID-19 severity, is showed in the left panel (p values in the top right corner). The right panel shows the comparison between PosCOV (blue line) and NegCov (red line), adjusted for dialysis/transplant status. Individual observations are showed as dots, with grey dotted lines connecting data points from the same patients. Antibody levels are expressed as log2 transformed light units (LU). The horizontal dashed line represents the cutoff for seroconversion. Anti-S anti-spike protein antibodies, Anti-N anti-nucleocapsid protein antibodies