Table 2.
Comparison of Amplicor CT/NG and ddPCR to clinical exama
| Clinical groupb | No. of subjects in each group | No. (%) with each result by each test |
|||
|---|---|---|---|---|---|
| Amplicor |
ddPCR (ζ ≥ 0.95) |
||||
| Positive | Negative | Positive | Negative | ||
| Active trachoma (TF and/or TI) | 161 | 102 (63.3) | 59 (36.7) | 98 (60.9) | 63 (39.1) |
| TF | 158 | 100 (63.3) | 58 (36.7) | 96 (60.8) | 62 (39.2) |
| TI | 16 | 12 (75) | 4 (25) | 12 (75) | 4 (25) |
| TS | 343 | 44 (12.8) | 299 (87.2) | 26 (7.6) | 317 (92.4) |
| TT | 21 | 6 (28.6) | 15 (71.4) | 5 (23.8) | 16 (76.2) |
| No trachoma | 979 | 114 (11.6) | 865 (88.4) | 78 (8) | 901 (92) |
a
Individuals may be included in more than one clinical group.
b
TF, trachomatous inflammation, follicular; TI, trachomatous inflammation, intense; TS, trachomatous scarring; TT, trachomatous trichiasis.