Table 4.
Comparison of test results and return results of inter-laboratory quality assessment panel
| Sample ID | Test results | Return results | ||||||
|---|---|---|---|---|---|---|---|---|
| qRT-PCR (Ct value) | OSN-qRT-PCR (Ct value) | ddPCR (copies/mL) | SARS-COV-2 | Pass rate (%) | ||||
| ORF-1ab | N | ORF-1ab | N | ORF-1ab | N | |||
| 202001 | – | – | – | – | – | – | Negative | 99 |
| 202002 | 31.79 | 30.49 | 16.45 | 20.97 | 3074 | 2073 | Positive | 98 |
| 202003 | 25.99 | 24.23 | 13.78 | 18.68 | 23,080 | 5005 | Positive | 99 |
| 202004 | 33.87 | 32.31 | 20.94 | 21.19/26.67 | 1144 | 2860 | Positive | 98 |
| 202005 | 29.93 | 28.87 | 15.56 | 19.53 | 7293 | 2072 | Positive | 99 |
| 202006 | – | – | – | – | – | – | Negative | 99 |
| 202007 | 32.85 | 31.73 | 18.38 | 20.80 | 1144 | 1573 | Positive | 98 |
| 202008 | – | – | – | – | – | – | Negative | 99 |
| 202009 | 34.85 | 33.91 | 18.92 | 22.43 | 1312 | 643 | Positive | 97 |
| 202010 | 27.79 | 26.40 | 12.22 | 15.89 | 33,962 | 11,072 | Positive | 99 |