Ct values of sputum and NPS & OPS specimens in the real-time RT-PCR positive group (N=320)
| Sputum | NPS & OPS | P-value | |
|---|---|---|---|
| E gene | 22.9±5.7 | 21.4±6.1 | <0.01 |
| RdRP gene | 24.3±5.5 | 22.8±5.9 | <0.01 |
| N gene | 26.0±5.6 | 24.3±5.8 | <0.01 |
Values are presented as mean±standard deviation.
Ct, cut-off cycle threshold; NPS, nasopharyngeal swabs; OPS, oropharyngeal swabs; RT-PCR, reverse transcription polymerase chain reaction; E gene, envelope gene; RdRP gene, RNA dependent RNA polymerase gene; N gene, nucleocapsid gene.
P-value by paired t-test.