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Distribution of Ct values in patients with mild and severe disease.
| Median duration of symptoms before testing | Mild disease (n = 54) |
Severe disease (n = 112) |
Significance testing |
|---|---|---|---|
| 3 days | 5 days | P = 0.02 (Kruskall Wallis test) | |
| Ct 11–20 | 29 (54%) | 35 (31%) | Chi square statistic 7.7, p = 0.02 |
| Ct 21–30 | 17 (31%) | 52 (46%) | |
| Ct 31–40 | 8 (15%) | 25 (22%) |
