Table 2.
Results of univariate and multivariate regression analyses showed independent variables and their crude odds ratios (ORs) and adjusted odds ration (Adjusted ORs) with 95% confidence interval (95% CI) for having a tuberculin test conversion.
| Variables | ORs (95%CI) |
Adjusted ORs (95%CI) |
| Working unit | ||
| Office | 1.00 | 1.00 |
| Inpatient unit | 2.26 (1.44–3.54) | 1.99 (1.25–3.17) |
| Outpatient unit | 2.10 (1.22–3.60) | 1.91 (1.10–3.17) |
| Critical care unit | 1.69 (0.59–3.64) | 1.31 (0.52–3.30) |
| Operating room | 1.40 (0.70–2.80) | 1.50 (0.77–3.12) |
| Laboratory unit | 2.10 (0.90–4.92) | 2.04 (0.84–4.96) |
| History tuberculosis exposure in the past year | 2.46 (1.63–3.72) | 2.26 (1.47–3.47) |
| History of prevention by any methoda | 1.66 (1.16–2.39) | Not retained |
| History of surgical mask usea | 1.92 (1.34–2.76) | Not retained |
Note. anot retained in the final model by multivariate logistic regression analyses