Skip to main content
. 2022 Mar 3;53(9):3817–3825. doi: 10.1017/S0033291722000460

Table 1.

Characteristics of the study population (N = 1 232 564)

Men No ID N = 623 401 (98.46%) Mild ID N = 6777 (1.07%) Moderate/severe ID N = 3003 (0.47%)
Birth year, Median (quartiles) 1986 (1983, 1989) 1987 (1984, 1989) 1987 (1983, 1989)
Parental education, No. (%)
High 292 886 (47.0) 1525 (22.5) 1010 (33.6)
Middle 294 137 (47.2) 4366 (64.4) 1685 (56.1)
Low 34 242 (5.5) 882 (13.0) 300 (10.0)
Missing 2136 (0.3) 4 (0.06) 8 (0.3)
Parental immigration, No. (%) 45 570 (7.3) 477 (7.0) 301 (10.0)
ASD, No. (%) 6960 (1.1) 1111 (16.4) 937 (31.2)
ADHD, No. (%) 17 434 (2.8) 1380 (20.4) 370 (12.3)
Any criminal conviction, No. (%) 139 382 (22.4) 1810 (26.7) 272 (9.1)
Violent criminal conviction, No. (%) 37 684 (6.0) 710 (10.5) 145 (4.8)
Sexual criminal conviction, No. (%) 2040 (0.3) 137 (2.0) 20 (0.7)
Any assault victimization, No. (%) 33 692 (5.4) 408 (6.0) 64 (2.1)
Sexual assault victimization, No. (%) 70 (0.01) 12 (0.2) 3 (0.1)
Age at ID registration, Mean (s.d.) 18.9 (4.1) 12.2 (7.5)
Age at first criminal conviction, Mean (s.d.) 19.3 (3.6) 19.3 (3.3) 19.7 (3.9)
Age at first violent crime conviction, Mean (s.d.) 19.9 (3.6) 20.2 (3.6) 20.9 (3.9)
Age at first sexual crime conviction, Mean (s.d.) 21.7 (4.1) 20.7 (3.6) 21.5 (3.2)
Age at first assault victimization, Mean (s.d.) 21.4 (3.7) 21.0 (4.2) 20.8 (3.7)
Age at first sexual assault victimization, Mean (s.d.) 18.3 (4.8) 15.2 (5.5) 22.7 (5.1)
Women No ID N = 592 308 (98.82%) Mild ID N = 4912 (0.82%) Moderate/severe ID N = 2163 (0.36%)
Birth year, Median (quartiles) 1986 (1983, 1989) 1987 (1984, 1989) 1987 (1983, 1989)
Parental education, No. (%)
High 277 539 (46.9) 1123 (22.9) 763 (35.3)
Middle 279 742 (47.2) 3131 (63.7) 1180 (54.6)
Low 32 940 (5.6) 656 (13.4) 218 (10.1)
Missing 2087 (0.4) 2 (0.04) 2 (0.1)
Parental immigration, No. (%) 43 426 (7.3) 350 (7.1) 197 (9.1)
ASD, No. (%) 3915 (0.7) 553 (11.3) 500 (23.1)
ADHD, No. (%) 12 102 (2.0) 644 (13.1) 167 (7.8)
Any criminal conviction, No. (%) 53 246 (9.0) 566 (11.5) 103 (4.8)
Violent criminal conviction, No. (%) 7248 (1.2) 172 (3.5) 42 (1.9)
Sexual criminal conviction, No. (%) 31 (0.01) 3 (0.06)
Any assault victimization, No. (%) 12 021 (2.0) 334 (6.8) 69 (3.2)
Sexual assault victimization, No. (%) 4769 (0.8) 245 (5.0) 51 (2.4)
Age at ID registration, Mean (s.d.) 19.2 (4.1) 12.4 (7.7)
Age at first criminal conviction, Mean (s.d.) 18.8 (3.4) 19.6 (3.6) 19.9 (4.0)
Age at first violent crime conviction, Mean (s.d.) 19.7 (3.8) 20.4 (3.7)
Age at first sexual crime conviction, Mean (s.d.) 21.1 (3.8) 23.4 (2.9) 21.5 (3.2)
Age at first assault victimization, Mean (s.d.) 20.9 (4.2) 20.6 (4.0) 20.8 (5.4)
Age at first sexual assault victimization, Mean (s.d.) 20.0 (3.9) 20.3 (4.1) 20.3 (5.4)

ID, intellectual disability; ASD, autism spectrum disorder; ADHD, attention deficit hyperactivity disorder.