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Distribution of Ct values in patients with severe disease who died and who survived.
| Median days of symptoms before testing | Survived (n = 56) |
Died (n = 55) |
Significance testing |
|---|---|---|---|
| 5 days | 3 days | P = 0.02 (Kruskall Wallis test) | |
| Ct 11–20 | 12 (21%) | 24 (44%) | Chi square statistic 6.3 p = 0.04 |
| Ct 21–30 | 30 (54%) | 22 (40%) | |
| Ct 31–40 | 14 (25%) | 9 (16%) |
