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. 2021 May 18;6:100127. doi: 10.1016/j.lanepe.2021.100127

Table 3.

Association between log-transformed antibody titres and participant characteristics.

Anti-Spike Antibody Titre
Anti-Receptor Binding Domain Titre
Anti-Nucleocapsid Antibody Titre
Beta 95% CI p-value Beta 95% CI p-value Beta 95% CI p-value
All Patients
Male Sex 0.383 0.142-0.623 0.002 0.412 0.193-0.640 <0.0013 0.314 0.120-0.509 0.002
Age (years) 0.006 -0.001-0.013 0.095 0.008 0.001-0.014 0.031 0.010 0.004-0.0160 0.001
Symptomatic Illness 1.25 0.975 - 1.532 <0.001 1.029 0.772-1.286 <0.001 1.020 0.796 - 1.244 <0.001
Symptomatic Individuals
Male Sex 0.137 -0.202 - 0.479 0.448 0.1411 -0.173 - 0.457 0.381 0.079 -0.212 - 0.372 0.612
Age (years) 0.023 0.013-0.033 <0.0001 0.021 0.012 - 0.030 <0.001 0.028 0.020 - 0.037 <0.001
Time since reported illness (days) -0.002 -0.004 - 0.000 0.041 -0.002 -0.004 - 0.000 0.022 0.005 -0.007 - -0.003 <0.001