TABLE 3.
Results of multivariate logistic regression analysis for identification of covariates that were independently associated with gyrA mutations, a marker of fluoroquinolone resistancea
| Characteristic | Adjusted OR (95% CI) | P |
|---|---|---|
| MDR | 13.8 (5.2-36.5) | <0.0005 |
| Monoresistance to rifampin | 6.3 (1.6-25.1) | 0.010 |
| Polyresistance | 4.5 (1.3-14.8) | 0.015 |
| Age ≥46 yr | 2.4 (1.3-4.4) | 0.005 |
| TB retreatment | 2.1 (1.2-3.8) | 0.014 |
a
OR, odds ratio; MDR, resistance to at least isoniazid and rifampin; polyresistance, resistance to two or more first-line drugs but not MDR.