Table 2.
Comparison of ddPCR results on the SARS-CoV-2 positive (N = 15 UTM and N = 15 ESwab) and negative (N = 10 UTM and N = 10 ESwab) subjects of the cohort.
| ddPCR | Target | Positives | Negatives | ||
|---|---|---|---|---|---|
| UTM vs ESwab Log(copies/mL) Mean ± SD |
UTM vs ESwab P value |
UTM vs ESwab Log(copies/mL) Mean ± SD |
UTM vs ESwab P value |
||
| RNA | N1 | 5.36 (± 1.56) vs 4.20 (± 1.27) | 0.0105 | nd vs nd | na |
| N2 | 4.50 (± 1.22) vs 4.75 (± 1.07) | 0.7148 | nd vs nd | na | |
| RPP30 | 6.12 (± 0.54) vs 6.44 (± 0.68) | 0.1876 | 5.18 (± 0.27) vs 4.94 (± 0.47) | 0.3750 | |
| Direct | N1 | 3.72 (± 1.22) vs 3.76 (± 0.64) | 0.6953 | nd vs nd | > 0.9999 |
| N2 | 4.00 (± 1.09) vs 3.88 (± 0.49) | 0.6523 | 3.47 (na) vs nd | > 0.9999 | |
| RPP30 | 5.96 (± 0.64) vs 6.18 (± 0.75) | 0.4545 | 4.77 (± 0.29) vs 5.22 (± 0.62) | 0.1055 | |
Na: not applicable; nd: not detected. Wilcoxon Test p values are reported.