Table 2 Anti-S1 IgG titres and response class at the end of the study
Variable | Value |
|---|---|
Anti-S1 IgG (participants with three doses of vaccine), U/ml (n = 97; all but one were COVID-19-negative in a PCR test) | |
mean (SD) | 170.06 (212.12) |
median [IQR] | 93.26 [34.25; 176.06] |
range | (0.0; 750.0) |
Anti-S1 IgG (COVID-19-positive participants), U/ml (n = 15) | |
mean (SD) | 351.4 (352.0) |
median [IQR] | 294.9 (4.2; 750.0) |
range | 2.5; 750.0 |
Response class in COVID-19-negative patients with two doses of vaccine, n (%) (n = 7) | |
Non-responders (< 0.8 U/ml) | 0 |
Borderline (0.8 to 1.2 U/ml) | 2 (28.6%) |
Responders (≥1.2 U/ml) | 5 (71.4%) |
Response class in COVID-19-negative patients with three doses of vaccine, n (%) (n = 96) | |
Non-responders (< 0.8 U/ml) | 0 |
Borderline (0.8 to 1.2 U/ml) | 4 (4.2%) |
Responders (≥1.2 U/ml) | 92 (95.8%) |
Response class in patients with three doses (whatever the COVID-19 status), n (%) (n = 97) | |
Non-responders (< 0.8 U/ml) | 0 |
Borderline (0.8 to 1.2 U/ml) | 4 (4.1%) |
Responders (≥1.2 U/ml) | 93 (95.9%) |