Volume 2, Number 2—April 1996
Dispatch
Nosocomial Transmission of Multidrug-Resistant Mycobacterium tuberculosis in Spain
Table 4
Employee tuberculin screening conversion study results
| Variable | Convertors (%) n = 24 | Nonconvertors (%) n = 68 | RR (95% Cl) |
|---|---|---|---|
| Occupational exposure to high-risk areas | |||
| Yes | 14 (70.0) | 6 (30.0) | 5.0 (2.7, 9.6) |
| No | 10 (13.9) | 62 (86.1) | |
| Months exposed in high-risk areas | ORb | ||
| 0 | 6 (10.7) | 50 (89.3) | 1.0 |
| 1-6 | 4 (28.6) | 10 (71.4) | 3.3 |
| 7-36 | 14 (63.6) | 8 (36.4) | 14.6, p < 0.01 |
a RR (95% CI), relative risk (95% confidence intervals).
b Chi-square for linear trend.
