Table 1 Baseline characteristics of participants, n = 60
Variable | Total sample (n = 60) | Control (n = 30) | IDMI (n = 3 0) | p-value |
|---|---|---|---|---|
Age (mean, sd) | 31.0 (6.5) | 30.8 (6.7) | 31.1 (6.4) | 0.99 |
Gender (n, %) | ||||
 Male | 32 (53.3) | 13 (43.3) | 19 (63.3) | 0.12 |
 Female | 28 (46.7) | 17 (56.7) | 11 (36.7) |  |
Race (n, %) | ||||
 Black | 5 (8.3) | 4 (13.3) | 1 (3.3) | 0.51 |
 Coloured | 53 (88.3) | 25 (83.3) | 28 (93.3) |  |
 White | 2 (3.3) | 1 (3.3) | 1 (3.3) |  |
Relationship status (n, %) | ||||
 Single | 53 (88.3) | 27 (90.0) | 26 (86.7) | 0.99 |
  In relationship | 7 (11.7) | 3 (10.0) | 4 (13.3) |  |
Education (n, %) | ||||
 Did not finish high school | 29 (48.3) | 10 (33.3) | 19 (63.3) | 0.02* |
 Finished high school | 31 (51.7) | 20 (66.7) | 11 (36.7) |  |
Employment (n, %) | ||||
 Unemployed | 47 (78.3) | 24 (80.0) | 23 (76.7) | 0.75 |
 Employed | 13 (21.7) | 6 (20.0) | 7 (23.3) |  |
Age at first use (mean, sd) | 21.0 (5.9) | 21.0 (6.0) | 21.1 (5.8) | 0.85 |
Received previous treatment (n, %) | 28 (46.7) | 12 (40.0) | 16 (53.3) | 0.30 |