Table 3.
Ct value according to days after symptom onset and the viral culture result.
| Days of symptoms | Global Ct value | Ct value culture positive | Ct value culture negative |
|---|---|---|---|
| Asymptomatic | 22.74 (16.48; 27.79) | 16.51 (15.75; 21.19) | 24.17 (23.05; 23.61) |
| 1–2 days | 19.3 (15.95; 23.08) | 17.53 (15.64; 19.68) | 31 (25.96; 32.95) |
| 3–7 days | 22.9 (17.37; 27.48) | 18.89 (16.68; 22.61) | 29 (27.86; 29.2) |
| 8–13 days | 19.7 (19.67; 21.6) | 19.69 (19.67; 20.18) | 32.1 (32.1; 32.1) |
| 14–30 days | 29.75(25.78; 34.88) | 24.43 (20.82; 25.53) | 30.58 (26.83; 35.08) |
| >30 days | 29.95 (21.88; 33.13) | 18.2 (16.7; 20.65) | 32.8 (32.6; 34.1) |