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Performance characteristics of 4 methods in testing 197 saliva samples from 12 patients.
| Method | No. of positive samples | No. of positive samples by any method | Positivity ratea (% [95% CI]) |
|---|---|---|---|
| RT-PCR A | 144 | 166 | 86.7 (80.4- 91.3) |
| RT-PCR B | 151 | 91.0 (85.2- 94.7) | |
| RT-RAA | 151 | 91.0 (85.2- 94.7) | |
| dd-RT-PCR | 157 | 94.6 (89.6- 97.3) |
aNumber of positive samples divided by the number of positive samples by any method.
