Table 3. Agreement between qualitative results (positive or negative) and correlation between quantitative values of different tests in COVID-19 patients’ samples (n = 97).
Tests | Agreement between qualitative results, % | |||||||
---|---|---|---|---|---|---|---|---|
Correlation between quantitative values, ρ (p<0.001 in all significant cases) | ||||||||
Epitope | Euroimmun | Roche | Abbott | DiaSorin | LIPS S-RBD | LIPS N | Biosensor | |
SNIBE | 85 | 77 | 85 | 86 | 80 | 84 | 76 | 85 |
0.91 | 0.64 | 0.68 | 0.84 | 0.70 | 0.6 | 0.56 | NAa | |
Epitope | 82 | 90 | 93 | 84 | 91 | 86 | 77 | |
0.56 | 0.59 | 0.80 | 0.65 | 0.53 | 0.46 | NAa | ||
Euroimmun | 87 | 81 | 95 | 88 | 85 | 74 | ||
0.66 | 0.65 | 0.95 | 0.73 | 0.50 | NAa | |||
Roche | 89 | 88 | 91 | 88 | 79 | |||
0.78 | 0.71 | 0.67 | 0.51 | NAa | ||||
Abbott | 82 | 90 | 87 | 78 | ||||
0.71 | 0.59 | 0.51 | NAa | |||||
DiaSorin | 87 | 84 | 77 | |||||
0.78 | 0.53 | NAa | ||||||
LIPS S-RBD | 80 | 76 | ||||||
NSb | NAa | |||||||
LIPS N | 71 | |||||||
NAa |
a NA–not applicable. Only qualitative interpretation (absence or presence of test line).
bNS–no significant correlation (p>0.05).