This study explores variables that predict physical violence in 614 (forensic) psychiatric inpatients. All violent incidents that occurred in a Dutch forensic psychiatric hospital between 2014 and 2019 (N = 3,713) were coded with the Modified Overt Aggression Scale+ based on daily hospital reports and patients’ medical records. Binary logistic regression analyses examined which patient variables could differentiate between patients with and without physical violence during treatment and between patients with single and multiple incidents of physical violence. Variables included in the analyses were gender, legal status, borderline personality disorder, antisocial personality disorder, schizophrenia spectrum disorder, psychopathy (Psychopathy Checklist–Revised [PCL-R] score), self-harm during treatment, impulsivity, intellectual disability, and length of stay. A clear association was found between self-harm and inpatient physical violence on all outcome measures and in all analyses. Adequate monitoring of self-harm is advised as a strategy to early identify patients with a high risk to threaten ward safety.
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Aggressive incidents occur frequently in health care facilities, such as psychiatric care and forensic psychiatric hospitals. Previous research suggests that civil psychiatric inpatients may display more aggression than forensic inpatients. However, there is a lack of research comparing these groups on the incident severity, even though both frequency and severity of aggression influence the impact on staff members. The purpose of this study is to compare the frequency and severity of inpatient aggression caused by forensic and civil psychiatric inpatients in the same Dutch forensic psychiatric hospital. Data on aggressive incidents occurring between January 1, 2014, and December 31, 2017, were gathered from hospital files and analyzed using the Modified Overt Aggression Scale, including sexual aggression (MOAS+). Multilevel random intercept models were used to analyze differences between forensic and civil psychiatric patients in severity of aggressive incidents. In all, 3,603 aggressive incidents were recorded, caused by 344 different patients. Civil psychiatric patients caused more aggressive incidents than forensic patients and female patients caused more inpatient aggression compared with male patients. Female forensic patients were found to cause the most severe incidents, followed by female civil psychiatric patients. Male forensic patients caused the least severe incidents. The findings have important clinical implications, such as corroborating the need for an intensive treatment program for aggressive and disruptive civil psychiatric patients, as well as emphasizing the importance of gender-responsive treatment
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Women and girls represent only a minority in the penitentiary system and in forensic mental health care. About 6%–10% of both prison and forensic psychiatric populations in Western countries comprise women (see for the most recent offi cial statistics in the UK w ww.gov. uk/government, in Canada w ww.statcan.gc.ca, and in the US w ww.bjs.gov) . However, there seems to be widespread agreement that in the past 20 years female offending has been on the rise, especially violent offending and particularly among young women ( Miller, Malone, and Dodge, 2010; M oretti, Catchpole, and Odgers, 2005) . Overall, a disproportionate growth of females entering the criminal justice system and forensic mental health care has been observed in many countries (for reviews, see Nicholls, Cruise, Greig, and Hinz, 2015; Odgers, Moretti, and Reppucci, 2005 ; Walmsley, 2015) . In addition, it should be noted that the ‘dark number’ for women is suggested to be bigger than for men. Offi cial prevalence rates of female offending might constitute an underestimation as women usually commit less reported offences, for example, domestic violence (N icholls, Greaves, Greig, and Moretti, 2015) . Furthermore, it has been found that – if apprehended – girls and women are treated more leniently by professionals and the criminal justice system. Generally, they receive lower prison sentences and are more often admitted to civil psychiatric institutions instead of receiving a prison sentence or mandatory forensic treatment after committing violence ( Javdani, Sadeh, and Verona, 2011 ; Jeffries, Fletcher, and Newbold, 2003 ). Hence, although female offenders compared to male offenders are a minority, female violence is a substantial problem that deserves more attention. Our understanding of female offenders is hindered by the general paucity of theoretical and empirical investigations of this population. In order to improve current treatment and assessment practices, our knowledge and understanding of female offenders should be enlarged and optimised (d e Vogel and Nicholls, 2016 ).
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