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Table 2 Characteristics of participating and non-participating detainees

From: Violent victimization and health service utilization in a forensic psychiatric context: a comparison between offenders with mental disorders and matched controls

  Participants (N = 200) Non-participants (N = 86) Statistic p
Median age (Q3-Q1) 31 (41.5–25) 35.5 (46–27) U = 1.67 .096
Sex
 Female 26 (13.0%) 8 (9.3%) χ 2 = 0.79 .376
 Male 174 (87.0%) 78 (90.7%)   
Occupation
 Employed 32 (16.0%)    
 Unemployed 156 (78.0%)    
 Students 12 (6.0%)    
SMD at unlawful act 92 (46.0%) 53 (61.6%) χ 2 = 5.88 .015
SMD at investigation 93 (46.5%) 53 (61.6%) χ 2 = 5.51 .019
Principal DSM-IV diagnoses
 Mental retardation 12 (6.0%)    
 Pervasive developmental disorders 24 (12.0%)    
 ADHD 1 (0.5%)    
 Substance-related disorders 31 (15.5%)    
 Psychotic disorders 57 (28.5%)    
 Mood disorders 11 (5.5%)    
 Paraphilias 3 (1.5%)    
 Adjustment disorder 9 (4.5%)    
 Personality disorders 31 (15.5%)    
 All others 6 (3.0%)    
 None 15 (7.5%)    
Substance-related disordera 74 (37.0%)    
Offence
 Violent crime 181 (90.5%) 76 (88.4%) χ 2 = 0.30 .585
 Lethal crime 15 (7.5%) 8 (9.3%) χ 2 = 0.26 .607
Sanction
 Forensic psychiatric care with separate discharge review 73 (36.5%) 48 (55.8%) FET = 10.03 .051
 Forensic psychiatric care without separate discharge review 15 (7.5%) 4 (4.7%)   
 Imprisonment 81 (40.5%) 28 (32.6%)   
 Probation 27 (13.5%) 6 (7.0%)   
 Imprisonment + probation 1 (.5%) 0   
 Prosecution dismissed 3 (1.5%) 0   
  1. Q 3 -Q 1 interquartile range, U Mann–Whitney U, χ 2 chi square, SMD severe mental disorder, DSM-IV Diagnostic and statistical manual of mental disorders, 4th edition, ADHD attention deficit hyperactivity disorders, FET Fisher’s exact test
  2. aPrincipal or secondary diagnosis