Table 1.
Characteristics of the study population including frequencies and the results of logistic regressions.
| Characteristics | Enrolled HCW N (%) |
TST positive HCW N (%) |
OR∗ | 95% CI | p value | IGRA positive HCW∗∗∗ N (%) |
OR∗∗ | 95% CI | p value |
|---|---|---|---|---|---|---|---|---|---|
| Gender | |||||||||
| Males | 913 (39.9) | 58 (41.1) | 1 | — | — | 9 (56.3) | 1 | — | — |
| Females | 1377 (60.1) | 83 (58.9) | 0.83 | 0.57–1.19 | 0.306 | 7 (43.7) | 0.29 | 0.07–1.12 | 0.072 |
| TB exposure at work | |||||||||
| No | 1968 (85.9) | 86 (61.0) | 1 | — | — | 5 (31.3) | 1 | — | — |
| Yes | 322 (14.1) | 55 (39.0) | 4.5 | 3.11–6.49 | <0.001 | 11 (68.7) | 3.34 | 0.95–11.75 | 0.060 |
| BCG vaccination | |||||||||
| No | 1087 (47.5) | 51 (36.2) | 1 | — | — | 12 (75.0) | 1 | — | — |
| Yes | 1203 (52.5) | 90 (63.8) | 1.68 | 1.17–2.42 | 0.005 | 4 (25.0) | 0.22 | 0.06–0.84 | 0.028 |
| Working areas | |||||||||
| Surgical wards | 531 (23.2) | 35 (24.8) | 1 | — | — | 5 (31.3) | 1 | — | — |
| Medical wards | 843 (36.8) | 53 (37.6) | 1.03 | 0.65–1.62 | 0.905 | 7 (43.7) | 0.39 | 0.06–2.80 | 0.352 |
| Services | 504 (22.0) | 24 (17.0) | 0.88 | 0.49–1.59 | 0.681 | 2 (12.5) | 0.91 | 0.22–3.85 | 0.903 |
| Emergency, ICU | 412 (18.0) | 29 (20.6) | 1.01 | 0.60–1.71 | 0.963 | 2 (12.5) | 0.32 | 0.04–2.52 | 0.276 |
| Professional category | |||||||||
| Administrative staff | 42 (1.8) | 4 (2,9) | 1 | — | — | 0 | — | — | — |
| Medical doctors | 923 (40.3) | 46 (32.6) | 0.52 | 0.17–1.57 | 0.245 | 8 (50.0) | — | — | — |
| Technicians | 180 (7.9) | 5 (3.5) | 0.33 | 0.08–1.35 | 0.124 | 0 | — | — | — |
| Auxiliary, cleaning staff | 201 (8.8) | 7 (5.0) | 0.35 | 0.09–1.29 | 0.114 | 0 | — | — | — |
| Nurses | 927 (40.5) | 79 (56.0) | 0.91 | 0.30–2.71 | 0.859 | 8 (50.0) | — | — | — |
| Nonmedical Doctors (biologists, pharmacists) | 17 (0.7) | 0 | — | — | — | — | — | — | — |
|
| |||||||||
| Total | 2290 | 141 | 16 | ||||||
∗The final multivariate logistics model includes the variables gender, TB exposure at work, BCG vaccination, working areas, and professional category.
∗∗The final multivariate logistics model includes the variables gender, TB exposure at work, BCG vaccination, and working areas.
∗∗∗This data refers to the period of May–December 2014.