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Table 4 Violent behavior and homicide among mixed clinical populations

From: Mental illness and violent behavior: the role of dissociation

Study

Data source and timeframe

N

Homicide

Severe assault

Any violent crime

Sexual assault/interpersonal violence

Diagnoses represented in study (among only perpetrators when possible)

Bruce et al. (2014) [22]a/b

Biomedical Research Centre Case Register Interactive Search tool, UK, 2009, lifetime timeframe

165

N/A

35.2%b

46.1%a

Sexual assault grouped w/severe violence

Schizophrenia (66.67%)

Substance use disorder (35.2%)

Antisocial personality disorder (24.2%)

Diagnoses represent total N, not just offenders

Egeland and Susman- Stillman (1996) [33]c

Mothers/survivors of childhood maltreatment, outpatient

24

N/A

N/A

N/A

58.33% childhood maltreatment (dissociation significantly higher among abusive mothers)

N/A

Hodgins et al. (2007) [23] a/b

Adult inpatients in government mental health hospital, UK, lifetime timeframe

205

N/A

33.2%b

34.1%a

N/A

Schizophrenia (65%)

Substance use disorder (60%)

Bipolar disorder I or II (18.5%)

Schizoaffective disorder (8.78%)

Jordan et al. (1996) [25]b

Women entering prison, US, 6–24 month timeframe

805

    

Substance use disorder (47.4%)

Borderline personality disorder (28%)

Antisocial personality disorder (11.9%)

Major depression (10.8%)

Kaplan et al. (1998) [32]b

Adult outpatients in mood disorder clinic, NY, US, lifetime timeframe

122

0%

% N/A but dissociative symptoms significantly/positively correlated with assault

N/A

N/A

DES score above cutoff indicative of potential DD (29%)d

Matejkowski et al. (2008) [24]a

Indiana Criminal Justice Institute (US), 1990–2002, 12-year timeframe

95

100%

46%

N/A

14%

Mood disorder (74%)

Schizophrenia (28%)

Other psychotic disorder (15%)

Quimby and Putnam (1991) [31]c

Adult inpatients in state psychiatric hospital, Maine, US, lifetime timeframe

70

N/A

N/A

N/A

% N/A but dissociation significantly/positively correlated w/sexual aggression

DES score above cutoff indicative of potential DD (30%)e

  1. DD dissociative disorder, DID dissociative identity disorder, N/A not applicable (not inquired in the study), DES Dissociative Experiences Scale
  2. aArrest records
  3. bSelf-reports
  4. cClinician reports
  5. dDES ≥ 25
  6. eDES ≥ 30