TABLE 4.
Sensitivity of BinaxNOW by Ct values of RT‐PCR tests (N = 464 paired a tests from 435 participants).
| Ct value | Positive PCR tests | Positive BinaxNOW tests | Negative BinaxNOW tests |
|---|---|---|---|
| N | N (%) | N (%) | |
| ≤ 25 | 198 | 197 (99.5) | 1 (0.5) |
| 26–30 | 121 | 113 (93.4) | 8 (6.6) |
| 31–35 | 101 | 72 (71.3) | 29 (28.7) |
| 36–40 | 44 | 8 (18.2) | 36 (81.8) |
Abbreviation: RT‐PCR, reverse transcription polymerase chain reaction.
a
This table includes positive RT‐PCR tests and corresponding BinaxNOW test results. Of 465 total positive RT‐PCR tests, 1 was missing a Ct value; therefore, the sample size includes 464 tests of both BinaxNOW and RT‐PCR.