From: Contributors to nonsuicidal self-injury in incarcerated youth
 | Males | Females | ||||
---|---|---|---|---|---|---|
 | No self-injury (n = 266) n (%) | Lifetime NSSI (n = 55) n (%) | Lifetime nonsuicidal cuttinga (n = 37) n (%) | No self-injury (n = 266) n (%) | Lifetime NSSI (n = 37) n (%) | Lifetime nonsuicidal cuttinga (n = 21) n (%) |
Age (in years)b | 17.6 (1.6)** | 16.9 (1.9) | 16.8 (2.0) | 16.6 (1.5) | 16.6 (1.6) | 16.7 (1.9) |
Highest academic gradeb | 10.0 (1.5) | 9.9 (1.6) | 9.6 (1.9) | 9.2 (1.6) | 9.5 (1.6) | 9.7 (1.8) |
White (vs nonwhite) | 88 (47.1) | 39 (70.9)** | 26 (92.9)*** | 22 (27.8) | 22 (59.5)*** | 15 (71.4)*** |
Repeat offender status | 178 (95.2) | 53 (96.4) | 26 (92.9) | 63 (81.8) | 31 (88.6) | 18 (85.7) |
Age at first offense (in years)b | 12.8 (1.8) | 12.8 (1.9) | 12.8 (1.9) | 13.1 (1.8) | 13.5 (1.4) | 13.5 (1.3) |
Interpersonal offense | 95 (51.1) | 25 (45.5) | 14 (50.0) | 41 (51.9) | 18 (48.6) | 11 (52.4) |
Mental health disorder or condition | ||||||
 Any disorder | 77 (41.2) | 38 (69.1)*** | 17 (60.7) | 35 (44.3) | 26 (70.3)** | 13 (51.9) |
 Post-traumatic Stress Disorder | 3 (1.6) | 2 (3.6) | 1 (3.5) | 4 (5.1) | 0 (0.0) | 0 (0.0) |
 Major Depressive Disorder | 6 (3.2) | 7 (12.7)** | 3 (7.1) | 4 (5.1) | 5 (13.5) | 2 (4.8) |
 Conduct Disorder | 29 (15.5) | 16 (29.1)* | 8 (28.6) | 18 (23.1) | 10 (27.0) | 6 (28.6) |
 Substance Use Disorder | 52 (27.8) | 23 (41.8) | 12 (42.9) | 12 (15.4) | 12 (32.4)* | 6 (28.6) |
 Past 4 weeks suicide attempt | 0 (0.0) | 3 (5.5)** | 1 (3.6)** | 0 (0.0) | 1 (2.7) | 0 (0.0) |
 Lifetime suicide attempt | 6 (3.2) | 12 (21.8)*** | 8 (28.6)*** | 3 (3.8) | 11 (29.7)*** | 6 (28.6)*** |
Traumatic Exposure | ||||||
 Forced sexual activity | 7 (3.8) | 6 (10.9)* | 3 (10.7) | 17 (21.5) | 23 (62.2)*** | 13 (61.9)*** |
 Nonsexual assault | 91 (48.9) | 40 (72.7)** | 20 (71.4)* | 26 (32.9) | 17 (45.9) | 11 (52.4) |