Table 2 Baseline characteristics of participants
|  | Total (N = 335) | Control (N = 110) | MI (N = 113) | MI-PST (112) |
|---|---|---|---|---|
Age (Mean, range) | 28 (18–75) | 27 (18–75) | 28 (18–65) | 28.5 (18–61) |
Gender | Â | Â | Â | Â |
 Male N (%) | 218 (65.5) | 68 (62.4) | 71 (63.4) | 79 (70.5) |
 Female N (%) | 115 (34.5) | 41 (37.6) | 41 (36.6) | 33 (29.5) |
Race | ||||
 Black N (%) | 195 (58.2) | 58 (53.7) | 68 (60.7) | 69 (61.6) |
 Coloured N (%) | 135 (40.7) | 49 (45.4) | 44 (39.30 | 42 (37.5) |
 White/Asian N (%) | 2 (0.6) | 1 (0.9) | 0 | 1 (0.9) |
Marital Status | ||||
 Single N (%) | 272 (82.9) | 91 (85.8) | 89 (80.2) | 92 (82.9) |
 Married or attached N (%) | 56 (17.1) | 14 (14.2) | 22 (19.8) | 19 (17.1) |
Education | ||||
 Did not finish high school N (%) | 168 (50.1) | 58 (52.7) | 56 (49.6) | 54 (48.2) |
 Finished high school N (%) | 167 (49.9) | 52 (47.30 | 57 (50.4) | 58 (51.8) |
Employment | ||||
 Employed N (%) | 147 (44.4) | 45 (41.3) | 46 (40.7) | 56 (51.4) |
 Unemployed N (%) | 184 (55.6) | 64 (58.7) | 67 (59.3) | 53 (48.6) |
Presented with Injury | ||||
 Yes | 242 (72.2) | 78 (70.9) | 82 (72.6) | 82 (73.2) |
 No | 93 (27.8) | 32 (29.1) | 31 (27.4) | 30 (26.8) |
Intent of Injury | ||||
 Intentional N (%) | 185 (76.5) | 49 (62.0) | 43 (52.4) | 46 (56.1) |
 Non-intentional (N (%) | 57 (23.5) | 20 (38.0) | 39 (47.6) | 36 (32.1) |
Under the influence when injured | ||||
 Yes N (%) | 197 (59.2) | 70 (63.6) | 72 (64.9) | 57 (50.9) |
 No N (%) | 136 (40.8) | 40 (36.4) | 39 (35.1) | 55 (49.1) |
Substance Use Involvement Score (Total) | 19 (6–38) | 19 (7–35) | 19.75 (6.57) | 18 (6–35) |
 Alcohol (n = 286) | 19 (10–38) | 19 (10–30) | 20 (10–38) | 17 (10–30) |
 Dagga (n = 24) | 20.5 (8–35) | 21.5 (12–27) | 18.09 (7.9) | 19.9 (10.1) |
 Cocaine (n = 1) | 26 (26–26) | n/a | n/a | n/a |
 Methamphetamine (n = 20) | 23.5 (6–35) | 19 (7–35) | 27 (17–32) | 23.3 (9.98) |
 Mandrax (n = 4) | 9.5 (6–23) | 23 (23–23) | 6 (6–13) | n/a |