Table 1 Multivariate association of Xpert-MGIT discordant sputum test results versus Xpert-MGIT concordant positive results with demographic and clinical variables and indicators of sputum bacterial load, among 317 Xpert or MGIT-positive participants of the second national tuberculosis prevalence survey in Vietnam
Factors | Xpert (+) – MGIT (−) (n = 73) | Xpert (−) – MGIT (+) (n = 81) | ||
|---|---|---|---|---|
Adjusted OR (95% CI) | p-value | Adjusted OR (95% CI) | p-value | |
Male (vs. female) | 2.8 (1.1–6.8) | 0.025 | 0.7 (0.3–1.4) | 0.284 |
Night sweats (vs. none) | 3.6 (1.2–11.3) | 0.024 | 0.5 (0.1–2.7) | 0.416 |
Productive cough (vs. None) | 0.4 (0.1–1.3) | 0.113 | 0.3 (0.1–1.1) | 0.316 |
Time to detect (day) | Not available |  | 1.1 (1.0–1.1) |  < 0.001 |
Xpert cycle threshold value | 1.2 (1.1–1.3) |  < 0.001 | Not available |  |
Treatment history | ||||
 No treatment history | Ref |  | Ref |  |
 TB treatment > 2 years | 2.7 (1.1–7.2) | 0.048 | 0.5 (0.2–1.6) | 0.239 |