Table 4.
Extrapulmonary specimens: comparison of Ultra vs. Xpert semiquantitative readouts with AFB smear and culture results.
| No. of specimens with ultra | Specimens with | No. of specimens with Xpert | ||
|---|---|---|---|---|
| Not detected | Smear positive growth of MTB (no. = 11) | Not detected | ||
| Trace | ||||
| Very low | Very low | |||
| Low | 1 | 2 | Low | |
| Medium | 8 | 6 | Medium | |
| High | 2 | 3 | High | |
| Total | 11 | 11 | Total | |
| Not detected | 2 | Smear negative growth of MTB (no. = 40) | 11 | Not detected |
| Trace | 5 | |||
| Very low | 14 | 6 | Very low | |
| Low | 6 | 15 | Low | |
| Medium | 13 | 6 | Medium | |
| High | 2 | High | ||
| Total | 40 | 40 | Total | |
| Not detected | 4 | Smear positive growth of NTM (no. = 4) | 4 | Not detected |
| Trace | ||||
| Very low | Very low | |||
| Low | Low | |||
| Medium | Medium | |||
| High | High | |||
| Total | 4 | 4 | Total | |
| Invalid/Error | 1 | Smear negative no growth of AFB (no. = 35) | 3 | Invalid/Error |
| Not detected | 33 | 32 | Not detected | |
| Trace | 1 | |||
| Very low | Very low | |||
| Low | Low | |||
| Medium | Medium | |||
| High | High | |||
| Total | 35 | 35 | Total | |