Table 1.
Demographic, anthropometric and drug use profiles of the study participants
| ISUs | ||||||
| Characteristic | Non-ISUs, n=64 |
HIV-TB-, n=201 |
HIV+TB-, n=129 |
HIV-TB+, n=20 |
HIV+TB+, n=29 |
P |
| Gender | ||||||
| Male | 31 (48.4) | 188 (93.5) | 53 (41.1) | 18 (90.0) | 19 (65.5) | <0.0001 |
| Female | 33 (51.6) | 13 (6.5) | 76 (58.9) | 2 (10.0) | 10 (34.5) | |
| Age (years) | 27.0 (10.5) | 31.8 (9.1)a | 30.6 (6.5) | 28 (5.4) | 30.1 (6.4) | 0.017 |
| Weight (kg) | 60.0 (11) | 55.0 (9) | 54.0 (7) | 49.5 (4)a,c | 51.0 (10)a | <0.0001 |
| Height (m) | 1.7 (0.1) | 1.72 (0.1)a | 1.69 (0.1) | 1.67 (0.1) | 1.68 (0.1) | <0.0001 |
| BMI (kg/m2) | 21.5 (3.5) | 18.7 (2.8)b | 18.8 (2.1)b | 17.3 (1.2)b | 18.0 (2.3)b | <0.0001 |
| Drug injected | ||||||
| Heroin | 0 (0.0) | 180 (89.6) | 91 (70.5) | 16 (80.0) | 22 (75.9) | |
| Cocaine | 0 (0.0) | 18 (9.0) | 37 (28.7) | 2 (10.0) | 5 (17.2) | |
| Heroin-cocaine | 0 (0.0) | 3 (1.5) | 1 (0.8) | 2 (10.0) | 2 (6.9) | - |
Data are presented as medians and interquartile range for age, weight, height and BMI (kg/m2) and as number and proportion of subjects for male, female, heroin, cocaine and heroin-cocaine. BMI, body mass index; HIV, human immunodeficiency virus; TB, mycobacterium tuberculosis; HIV-TB-, HIV and TB negative injection substance users; HIV+TB-, HIV positive TB negative injection substance users; HIV-TB+, HIV negative TB positive injection substance users; HIV+TB+, HIV and TB co-infected injection substance users. Data analysis was performed using Kruskal-Wallis tests. Thereafter, post-hoc correlations for multiple comparisons were performed using the Dunn's multiple comparison tests. Statistical comparison of proportion among groups was conducted by chi-square test. The significant P-values are in bold. a P < 0.05 vs. Non-ISUs, b P < 0.0001 vs. Non-ISUs, c P < 0.05 vs. HIV+TB- ISUs for age, height and BMI , while, a P < 0.05 vs. Non-ISUs for weight.