Table 3.
Pooled and individual results *.
| Results from Pooled Testing | Results from Individual Testing | |||
|---|---|---|---|---|
| Total | MTB-Negative | MTB-Positive | ||
| All pooled specimens | 153 | 584 | 493 (84.4%) | 91 (15.6%) |
| MTB-Negative | 80 (52.3%) | 304 | 304 (100.0%) | 0 (0.0%) |
| MTB-Positive | 73 (47.7%) | 280 | 189 (67.5%) | 91 (32.5%) |
| RIF-Resistant MTB | 0 (0.0%) | - | - | 3 (3.3%) |
| Pooled specimens with all CXR abnormal individuals | 66 | 253 | 175 (69.2%) | 78 (30.8%) |
| MTB-Negative | 6 (9.1%) | 22 | 22 (4.5%) | 0 (0.0%) |
| MTB-Positive | 60 (90.9%) | 231 | 153 (31.0%) | 78 (85.7%) |
| RIF-Resistant MTB | 0 (0.0%) | - | - | 3 (3.3%) |
| Pooled specimens with mixed CXR results | 17 | 64 | 55 (85.9%) | 9 (14.1%) |
| MTB-Negative | 6 (35.3%) | 23 | 23 (4.7%) | 0 (0.0%) |
| MTB-Positive | 11 (64.7%) | 41 | 30 (6.1%) | 11 (12.1%) |
| RIF-Resistant MTB | 0 (0.0%) | - | - | 0 (0.0%) |
| Pooled specimens with all CXR normal individuals | 70 | 267 | 265 (99.3%) | 2 (0.7%) |
| MTB-Negative | 68 (97.1%) | 259 | 259 (52.5%) | 0 (0.0%) |
| MTB-Positive | 2 (2.9%) | 8 | 6 (1.2%) | 2 (2.2%) |
| RIF-Resistant MTB | 0 (0.0%) | - | - | 0 (0.0%) |
MTB = Mycobacterium tuberculosis, CXR = chest X-ray, RIF = Rifampicin. * For individual results based on CXR group and MTB-negative or MTB-positive pooled sample percentages refer to the proportion of the total positive or negative results.