Table 2 Results of multiple logistical regression: Odds ratio for a positive TST (tuberculin skin test) result
a) | |||
|---|---|---|---|
TST (5 mm cut off) | Odds ratio | 95% confidence interval | p |
BCG vaccination | 12.6 | 6.9–22.7 | <0.0001 |
Age | 1.0 | 0.98–1.04 | 0.5 (n.s.) |
Sex | 1.3 | 0.72–2.24 | 0.4 (n.s.) |
Origin (Foreign/ German) | 5.4 | 2.7–10.6 | <0.0001 |
Previous contact tracing | 1.7 | 0.3–10.9 | 0.6 (n.s.) |
Exposure time | 1.0 | 0.99–1.0 | 0.6 (n.s.) |
b) | |||
|---|---|---|---|
TST (10 mm cut off) | Odds ratio | 95% confidence interval | p |
BCG vaccination | 4.8 | 2.3–9.6 | <0.0001 |
Age | 1.05 | 1.01–1.08 | 0.005 |
Sex | 1.5 | 0.8–2.9 | 0.2 (n.s.) |
Origin (Foreign/German) | 7.3 | 3.7–14.3 | <0.0001 |
Previous contact tracing | 0.6 | 0.05–7.4 | 0.7 (n.s.) |
Exposure time | 1.0 | 0.99–1.0 | 0.99 (n.s.) |