Table 2 Factors associated with TB disease among minibus drivers participating in an active TB screening program within in a large public transport facility in Johannesburg, South Africa
|  | †TB negative, N = 672 (%) | TB Disease, N = 10 (%) | Univariable odds ratio (95%confidence interval) | p | Multivariable odds ratio (95%confidence interval) | p |
|---|---|---|---|---|---|---|
Age | ||||||
 <35 | 292 (43.4) | 3 (30.0) | Referent | *0.9 | Referent | *0.9 |
 35-45 | 200 (29.8) | 4 (40.0) | 1.9 (0.4, 8.8) |  | 1.7 (0.3, 8.3) |  |
 >45 | 180 (26.8) | 3 (30.0) | 1.6 (0.3, 8.1) |  | 1.7 (0.3, 9.2) |  |
Hours worked per day | 14.2 (2.1) | 15.4 (1.5) | 1.5 (1.0, 2.2) | 0.04 | 1.4 (0.9, 2.1) | 0.07 |
HIV status | ||||||
 Negative | 343 (51.0) | 3 (30.0) | Referent | 1 | Referent | 1 |
 Positive | 55 (8.2) | 4 (40.0) | 8.3 (1,8, 38.2) | 0.01 | 5.3 (1.1, 26.3) | 0.03 |
 Unknown | 274 (40.8) | 3 (30.0) | 1.2 (0.3, 6.3) | 0.8 | 1.0 (0.2, 5.2) | 0.9 |
TB history | ||||||
No prior TB | 624 (92.9) | 8 (80.0) | Referent | 1 | - | - |
Prior TB | 48 (7.1) | 2 (20.0) | 3.4 (0.7,16.5) | 0.12 | - | - |
Incarceration history | ||||||
 Never detained | 427 (63.5) | 2 (20.0) | Referent | 1 | Referent | 1 |
 Ever detained | 245 (36.5) | 8 (80.0) | 7.0 (1.5, 33.1) | 0.02 | 5.5 (1.1, 27.3) | 0.04 |
Current smoker | ||||||
 No | 421 (62.7) | 3 (30.0) | Referent | 1 | Referent | 1 |
 Yes | 251 (37.3) | 7 (70.0) | 3.9 (1.0, 15.3) | 0.05 | 2.1 (0.5, 8.7) | 0.3 |