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Number of positive cases with various cut-off points.
| Cut-Off Points (Index) |
COVID-19 Patients (n = 9) |
Hospital Staff (n = 1000) |
Blood Donors (n = 184) |
|---|---|---|---|
| 5.0 | 9 (100%) | 4 (0.4%) | 0 (0%) |
| 4.0 | 9 (100%) | 5 (0.5%) | 0 (0%) |
| 3.0 | 9 (100%) | 6 (0.6%) | 0 (0%) |
| 2.0 | 9 (100%) | 12 (1.2%) | 0 (0%) |
| 1.5 | 9 (100%) | 15 (1.5%) | 1 (0.5%) |
| 1.0 | 9 (100%) | 24 (2.4%) | 4 (2.2%) |
