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The relative closeness to positive ideal solution with the ranking of the SARS-CoV-2 diagnostic tests.
| Ranking | Alternatives | R i |
|---|---|---|
| 1 | Chest CT | 0.6403 |
| 2 | Naso/oropharyngeal swab PCR | 0.5865 |
| 3 | Cell culture | 0.5718 |
| 4 | CoV-19 antibody IgG | 0.4815 |
| 5 | CoV-19 antibody IgM | 0.4638 |
| 6 | CoV-19 antigen detection | 0.4460 |
| 7 | Chest X-ray | 0.3815 |
