Table 2.
Characteristics of the study population: overall and stratified by attrition during the 24-month follow-up
| Characteristics | Overall (N = 628) | Dropped out before 24-month follow-up | |
|---|---|---|---|
| No (n = 237) | Yes (n = 391) | ||
| Group | |||
| Placebo | 309 (49.2) | 113 (47.7) | 196 (50.1) |
| Sertraline | 318 (50.2) | 124 (52.3) | 195 (49.9) |
| Age (years) | |||
| < 25 | 169 (26.9) | 50 (21.1) | 119 (26.9) |
| 25–34 | 223 (35.5) | 76 (32.1) | 147 (37.6) |
| 35–44 | 152 (24.2) | 61 (25.7) | 91 (23.3) |
| ≥ 45 | 84 (13.4) | 50 (21.1) | 34 (8.7) |
| Aboriginal status | |||
| Non-ATSI | 444 (70.9) | 181 (76.4) | 263 (67.6) |
| ATSI | 182 (29.1) | 56 (23.6) | 126 (32.4) |
| Currently in a relationship | 252 (40.1) | 90 (38.0) | 162 (41.4) |
| Accommodation status | |||
| Renting/government housing | 445 (70.9) | 162 (68.4) | 283 (72.4) |
| Own home/living with family | 135 (21.5) | 56 (23.6) | 79 (20.2) |
| Insecure accommodation | 48 (7.6) | 19 (8.0) | 29 (7.4) |
| Number of children, median (IQR) | 1 (0, 3) | 1 (0, 3) | 1 (0, 3) |
| Education category | |||
| Did not complete school | 215 (34.6) | 75 (32.2) | 140 (36.0) |
| School certificate | 220 (35.4) | 71 (30.5) | 149 (38.3) |
| HSC/VCE/leaving certificate | 63 (10.1) | 30 (12.9) | 3 (8.5) |
| Certificate/diploma/tech/trade | 111 (17.9) | 50 (21.5) | 61 (15.7) |
| Degree/tertiary qualification | 13 (2.1) | 7 (3.0) | 6 (1.5) |
| Required educational support in schoolb | 188 (29.9) | 73 (30.8) | 115 (29.7) |
| Expelled from schoolb | 235 (37.4) | 98 (41.4) | 137 (35.0) |
| Juvenile offending history | |||
| No history of juvenile violent offending | 562 (89.5) | 214 (90.3) | 348 (89.0) |
| History of juvenile violent offending | 66 (10.5) | 23 (9.7) | 43 (11.0) |
| Time spent in juvenile detention for any offence | 140 (22.3) | 42 (17.7) | 98 (25.1) |
| Referral source | |||
| Community corrections | 272 (43.3) | 106 (44.7) | 166 (42.5) |
| Magistrate/legal services | 289 (46.0) | 98 (41.4) | 191 (48.9) |
| Self/other | 67 (10.7) | 33 (13.9) | 34 (8.7) |
| Psychiatric history | |||
| No admission/treatment/medication | 249 (39.8) | 83 (35.2) | 166 (39.8) |
| ≥ 1 treatment/medication (no admission) | 277 (44.3) | 113 (47.9) | 164 (42.2) |
| ≥ 1 psych admission | 99 (15.8) | 40 (16.9) | 59 (15.2) |
| Number of prior violent offencesa | |||
| 0 | 65 (10.4) | 28 (11.8) | 37 (10.4) |
| 1–2 | 304 (48.4) | 103 (43.5) | 201 (51.4) |
| 3–4 | 159 (25.3) | 63 (26.6) | 96 (24.6) |
| ≥ 5 | 100 (15.9) | 43 (18.1) | 57 (14.6) |
| Duration of prior incarcerationa | |||
| 0 | 326 (51.9) | 127 (53.6) | 199 (50.9) |
| 1–6 months | 188 (29.9) | 75 (31.7) | 113 (28.9) |
| 7–12 months | 63 (10.1) | 22 (9.3) | 41 (10.5) |
| > 1 year | 51 (8.1) | 13 (5.5) | 38 (9.7) |
| BIS Score, median (IQR) | 85 (77, 92) | 85 (79, 92) | 84 (77, 91) |
| DSSI Score, median (IQR) | 25 (21, 28) | 25 (22, 28) | 25 (20, 28) |
| BDI-II Score, median (IQR) | 9 (4, 15) | 9 (3, 15) | 9 (4, 15) |
| K10 Score, median (IQR) | 14 (8, 21) | 14 (8, 20) | 14 (8, 22) |
| AIAQ Score, median (IQR) | 71 (54, 87) | 73 (55, 90) | 70 (53, 86) |
| AUDIT Score, median (IQR) | 10 (4, 17) | 9 (3, 16) | 10 (4, 17) |
aAssessed within 5 years prior to randomisation. BIS Barratt Impulsiveness Scale [46], DSSI Duke Social Support Scale [50], BDI-II Beck Depression Inventory Second Edition [52], K10 Kessler Psychological Distress Scale [54], AIAQ Anger, Irritability, and Assault Questionnaire [57], AUDIT Alcohol Use Disorders Identification Scale [58]
bMissing category not included. Note: Current relationship = married/de facto