Table 4.
Median test analyses of the SARS-CoV-2-R-A titers in BAU/mL at different serological time point assessments according to occurrence of breakthrough SARS-CoV-2 infectiona.
| Variables | SARS-CoV-2 infection | No infection | P-value |
|---|---|---|---|
| SARS-CoV-2-R-A at 3–6 weeks (n = 1250) | 229 | 1021 | |
| • Median Ab titers in BAU/mL (range) | 202 (0–10400) | 937 (0–56800) | <0.001 |
| SARS-CoV-2-R-A at 3 months (n = 910) | 136 | 774 | |
| • Median Ab titers in BAU/mL (range) | 64.9 (0–5714) | 380 (0–30460) | <0.001 |
| SARS-CoV-2-R-A at 6 months (n = 841) | 144 | 697 | |
| • Median Ab titers in BAU/mL (range) | 302 (0–48842) | 897.35 (0–95334) | <0.001 |
| SARS-CoV-2-R-A at 12 months (n = 674) | 36 | 638 | |
| • Median Ab titers in BAU/mL (range) | 1017 (0–6423) | 2080 (0–87200) | 0.003 |
SARS-CoV-2-R-A SARS-CoV-2 reactive antibodies, Ab antibodies.
aResults of median test remain unchanged when we only include evaluable cases for Omicron VOC.