Prevalence of Mycobacterium tuberculosis infection among injection drug users in Toronto
| Table 1: Predictors of a positive tuberculin skin test result among injection drug users in Toronto | ||||
| Variable | No. (and %) of injection drug users n = 171 | Prevalence of positive skin test result, % | p value | |
| Age, yr | ||||
| < 35 | 58 | (34.0) | 19.0 | 0.01 |
| >= 35 | 97 | (56.7) | 38.1 | |
| Sex | ||||
| Male | 145 | (84.8) | 31.7 | 0.44 |
| Female | 10 | (5.8) | 20.0 | |
| Country of birth | ||||
| Canada | 130 | (76.0) | 25.4 | < 0.001 |
| Elsewhere | 25 | (14.6) | 60.0 | |
| Aboriginal status* | ||||
| Yes | 8 | (4.7) | 37.5 | 0.42 |
| No | 122 | (71.3) | 24.6 | |
| Education | ||||
| >= grade 12 | 80 | (46.8) | 32.5 | 0.67 |
| < grade 12 | 75 | (43.9) | 29.3 | |
| History of shelter use | ||||
| Yes | 100 | (58.5) | 33.0 | 0.46 |
| No | 55 | (32.2) | 27.3 | |
| History of incarceration | ||||
| Yes | 129 | (75.4) | 31.0 | 0.98 |
| No | 26 | (15.2) | 30.8 | |
| *Status obtained only from Canadian-born subjects. | ||||
