Associations between smoking and the relative risk of latent tuberculosis(TB) infection, progression to active disease and mortality from active TB disease
| Meta-analysis | Pooled relative risk (95% CI) | ||
| TB infection | TB disease | TB mortality | |
| Studies n | ∼6 | ∼15 | ∼5 |
| Slama 2 | ∼1.8 (1.5–2.1) | ∼2.3 (1.8–3.0) | ∼2.2 (1.3–3.7) |
| Lin 3 | 1.7–2.2 (1.5–2.8) | ∼2.0 (1.6–2.6) | ∼2.0 (1.1–3.5) |
| Bates 4 | ∼1.7 (1.5–2.0) | ∼2.3 (2.0–2.8) | ∼2.1 (1.4–3.4) |