Table 1 Demographic characteristics of patients in COVID-19 group
From: Comparison of six antibody assays and two combination assays for COVID-19
Total COVID-19 patients (n = 54) | Seropositive patients* (n = 48) | Seronegative patients (n = 6) | p value | |
|---|---|---|---|---|
Age, years old (IQR) | 69.5 (57.25–82.5) | 71 (57.75–83.5) | 65.5 (57.3–73.8) | 0.31 |
Sex, female (%) | 13 (24.1%) | 10 (20.8%) | 5 (50.0%) | 0.14 |
Severity, no. (%) | < 0.01 | |||
Critical | 21 (38.9%) | 21 (43.8%) | 0 (0%) | 0.07 |
Severe | 17 (31.5%) | 16 (33.3%) | 1 (16.7%) | 0.65 |
Moderate | 9 (16.7%) | 7 (14.6%) | 2 (33.3%) | 0.26 |
Mild | 5 (9.3%) | 2 (4.2%) | 3 (50.0%) | < 0.01 |
Asymptomatic | 2 (3.7%) | 2 (4.2%) | 0 (0%) | 1.00 |
Respiratory support, no. (%) | < 0.01 | |||
MV and ECMO | 5 (9.3%) | 5 (10.4%) | 0 (0%) | 1.00 |
MV | 14 (25.9%) | 14 (29.2%) | 0 (0%) | 0.32 |
None or oxygen | 35 (64.8%) | 29 (60.4%) | 6 (100%) | 0.08 |
Administration | ||||
Collected samples, no. (IQR) | 5 (3–9) | 7 (3–10.25) | 2 (2–2.75) | < 0.01 |
Days of serum sample collection from onset, median days (IQR) | 18 (12–39) | 19 (12–40) | 6 (3–10) | < 0.01 |