Table 3.
Criteria | Importance weight | Max/Min | Naso/oropharyngeal swab PCR | Cell culture | CoV-19 antigen detection | CoV-19 antibody IgM | CoV-19 antibody IgG | Chest X-ray | Chest CT |
---|---|---|---|---|---|---|---|---|---|
No symptom-window period | VH | Max | 0.47 | 0.47 | 0.47 | 0.16 | 0.16 | 0.16 | 0.32 |
Early stage | VH | Max | 0.47 | 0.47 | 0.47 | 0.47 | 0.16 | 0.16 | 0.47 |
Active phase | VH | Max | 0.47 | 0.47 | 0.47 | 0.47 | 0.47 | 0.16 | 0.47 |
Recurrent stage | VH | Max | 0.16 | 0.16 | 0.16 | 0.16 | 0.47 | 0.32 | 0.47 |
Past infection | M | Max | 0.09 | 0.09 | 0.09 | 0.09 | 0.26 | 0.17 | 0.26 |
Recovery stage | L | Max | 0.04 | 0.04 | 0.04 | 0.09 | 0.13 | 0.04 | 0.13 |
Cost | M | Min | 0.09 | 0.09 | 0.26 | 0.09 | 0.09 | 0.09 | 0.09 |
Accessibility | VH | Max | 0.47 | 0.16 | 0.16 | 0.47 | 0.47 | 0.47 | 0.47 |
Usability | M | Max | 0.26 | 0.09 | 0.26 | 0.26 | 0.26 | 0.26 | 0.26 |
Equipment | M | Max | 0.17 | 0.09 | 0.26 | 0.09 | 0.09 | 0.09 | 0.26 |
Education | M | Max | 0.17 | 0.09 | 0.09 | 0.26 | 0.26 | 0.17 | 0.26 |
Sensitivity | H | Max | 0.13 | 0.39 | 0.13 | 0.13 | 0.13 | 0.26 | 0.39 |
Specificity | H | Max | 0.39 | 0.39 | 0.13 | 0.26 | 0.26 | 0.26 | 0.39 |
False positivity | VH | Min | 0.16 | 0.16 | 0.47 | 0.47 | 0.47 | 0.47 | 0.47 |
False negativity | VH | Min | 0.47 | 0.16 | 0.47 | 0.47 | 0.47 | 0.47 | 0.47 |
VH: very high; H: high; M: medium; L: low.