TABLE 2.
Positive rates of seven DNA-based NAATs a
| Number of positive/number of replicates (Positive rate, %) at diluted concentrations (copies/mL) | ||||||||
|---|---|---|---|---|---|---|---|---|
| Target DNA concentrations | 6.561 × 105 | 2.187 × 105 | 7.29 × 104 | 2.43 × 104 | 8.1 × 103 | 2.7 × 103 | 9 × 102 | 3 × 102 |
| CT concentrations | 3.2805 × 105 | 1.0935 × 105 | 3.645 × 104 | 1.215 × 104 | 4.05 × 103 | 1.35 × 103 | 4.5 × 102 | 1.5 × 102 |
| Sansure | 20/20 (100) | 20/20 (100) | 20/20 (100) | 20/20 (100) | 20/20 (100) | 20/20 (100) | 20/20 (100) | 13/20 (65) |
| Tianlong | 20/20 (100) | 20/20 (100) | 20/20 (100) | 20/20 (100) | 20/20 (100) | 20/20 (100) | 20/20 (100) | 13/20 (65) |
| Liferiver | 20/20 (100) | 20/20 (100) | 20/20 (100) | 20/20 (100) | 20/20 (100) | 16/20 (80) | 8/20 (40) | 3/20 (15) |
| Acon | 20/20 (100) | 20/20 (100) | 20/20 (100) | 20/20 (100) | 20/20 (100) | 20/20 (100) | 7/20 (35) | 3/20 (15) |
| Bioperfectus | 20/20 (100) | 20/20 (100) | 20/20 (100) | 20/20 (100) | 20/20 (100) | 20/20 (100) | 20/20 (100) | 5/20 (25) |
| Daan | 20/20 (100) | 20/20 (100) | 20/20 (100) | 20/20 (100) | 20/20 (100) | 20/20 (100) | 13/20 (65) | 6/20 (30) |
| Fosun | 20/20 (100) | 20/20 (100) | 20/20 (100) | 20/20 (100) | 20/20 (100) | 17/20 (85) | 0/20 (0) | 0/20 (0) |
| NG concentrations | 1.64025 × 105 | 5.4675 × 104 | 1.8225 × 104 | 6.075 × 103 | 2.025 × 103 | 6.75 × 102 | 2.25 × 102 | 7.5 × 101 |
| Sansure | 20/20 (100) | 20/20 (100) | 20/20 (100) | 20/20 (100) | 20/20 (100) | 20/20 (100) | 20/20 (100) | 4/20 (20) |
| Tianlong | 20/20 (100) | 20/20 (100) | 20/20 (100) | 20/20 (100) | 20/20 (100) | 20/20 (100) | 9/20 (45) | 5/20 (25) |
| Liferiver | 20/20 (100) | 20/20 (100) | 20/20 (100) | 20/20 (100) | 20/20 (100) | 20/20 (100) | 14/20 (70) | 5/20 (25) |
| Acon | 20/20 (100) | 20/20 (100) | 20/20 (100) | 20/20 (100) | 20/20 (100) | 20/20 (100) | 4/20 (20) | 2/20 (10) |
| Bioperfectus | 20/20 (100) | 20/20 (100) | 20/20 (100) | 20/20 (100) | 6/20 (30) | 4/20 (20) | 4/20 (20) | 0/20 (0) |
| Daan | 20/20 (100) | 20/20 (100) | 20/20 (100) | 20/20 (100) | 15/20 (75) | 7/20 (35) | 0/20 (0) | 0/20 (0) |
| Fosun | 20/20 (100) | 20/20 (100) | 20/20 (100) | 8/20 (40) | 5/20 (25) | 0/20 (0) | 0/20 (0) | 0/20 (0) |
| UU concentrations | 3.2805 × 105 | 1.0935 × 105 | 3.645 × 105 | 1.215 × 104 | 4.05 × 103 | 1.35 × 103 | 4.5 × 102 | 1.5 × 102 |
| Sansure | 20/20 (100) | 20/20 (100) | 20/20 (100) | 20/20 (100) | 20/20 (100) | 20/20 (100) | 8/20 (40) | 2/20 (10) |
| Tianlong | 20/20 (100) | 20/20 (100) | 20/20 (100) | 20/20 (100) | 20/20 (100) | 20/20 (100) | 4/20 (20) | 0/20 (0) |
| Liferiver | 20/20 (100) | 20/20 (100) | 20/20 (100) | 20/20 (100) | 20/20 (100) | 19/20 (100) | 3/20 (15) | 0/20 (0) |
| Acon | 20/20 (100) | 20/20 (100) | 20/20 (100) | 20/20 (100) | 20/20 (100) | 20/20 (100) | 7/20 (35) | 1/20 (5) |
| Bioperfectus | 20/20 (100) | 20/20 (100) | 20/20 (100) | 20/20 (100) | 20/20 (100) | 16/20 (80) | 2/20 (10) | 0/20 (0) |
| Daan | 20/20 (100) | 20/20 (100) | 20/20 (100) | 20/20 (100) | 20/20 (100) | 20/20 (100) | 6/20 (30) | 2/20 (10) |
| Fosun | 20/20 (100) | 20/20 (100) | 20/20 (100) | 20/20 (100) | 20/20 (100) | 20/20 (100) | 5/20 (25) | 0/20 (0) |
a
NAAT, nucleic acid amplification test; CT, Chlamydia trachomatis; NG, Neisseria gonorrhoeae; and UU, Ureaplasma urealyticum.