Table 3. Clinical and demographic characteristics of patients with apparent false-positive Xpert Ultra results and a final diagnosis of active TB.
| Characteristic | With other MTBc-positive resulta | Without any other MTBc-positive resulta | ||
|---|---|---|---|---|
| PTB cases | EPTB cases | PTB cases | EPTB cases | |
| (n = 12) | (n = 15) | (n = 13) | (n = 20) | |
| Gender | ||||
| Male | 12 | 6 | 11 | 12 |
| Female | 0 | 9 | 2 | 8 |
| Age group (years) | ||||
| Children (<15) | 1 | 0 | 1 | 3 |
| Adults (≥15) | 11 | 15 | 12 | 17 |
| Origin | ||||
| Born in Belgium | 3 | 1 | 3 | 1 |
| Non-Belgium-Born | 9 | 14 | 10 | 19 |
| Previous TB history | 2 | 4 | 2 | 4 |
| TB contact history | 8 | 3 | 6 | 8 |
| Immunosuppressive treatment | 1 | 0 | 0 | 1 |
| Other testing performed b and c | ||||
| Histological pattern of TB | 0 | 5 | 0 | 6 |
| TST + | 1 | 2 | 1 | 2 |
| IGRA + | 0 | 1 | 0 | 0 |
| HIV + | 0 | 4 | 2 | 2 |
PTB, pulmonary tuberculosis; EPTB, extra-pulmonary tuberculosis; TST, tuberculin skin test; IGRA, interferon-Ɣ release assay; HIV +, HIV-seropositive.
aMTBc result including follow-up culture and/or Xpert Ultra result.
bOne patient had both TST and IGRA +.
cOne patient had both histological pattern of TB and TST +.