| Incidence# | Relative disease risk | |
| Recent TB infection | ||
| Infection <1 yr past | 12.9 | |
| Infection 1–7 yrs past | 1.6 | |
| Old TB scar | 2.0–13.6 | |
| HIV infection | 35.0–162 | |
| Injection drug use | ||
| HIV seropositive | 76.0 | |
| Other | 10.0 | |
| Smoking | ||
| Current smokers | 2.63 | |
| Ex-smokers | 1.41 | |
| Never smokers | 1.00 | |
| Passive smoking | 1.49 | |
| Body mass index | ||
| ≥30 | 0.38 | |
| 25 to <30 | 0.58 | |
| 23 to <25 | 0.74 | |
| 18.5 to <23 | 1.00 | |
| <18.5 | 2.11 | |
| Silicosis | 68 | 30 |
| DM | ||
| DM versus no DM | 1.8–4.1 | |
| HBA1c ≥7% versus <7% | 3.1 | |
| Chronic renal failure | 10.0–25.3 | |
| Gastrectomy | 2–5 | |
| Jejunoileal bypass | 27–63 | |
| Renal transplant | 37 | |
| Heart transplant | 20–74 | |
| Head and neck carcinoma | 16 |
DM: diabetes mellitus. #: among tuberculin-positive subjects per 1,000 person-yrs.