The characteristics of patients admitted to a forensic psychiatric intensive care unit in Australia

Background: Psychiatric intensive care units (PICUs) house some of the highest acuity patients within the mental health system. Little is known about patient characteristics and adverse events occurring in these settings and this study aimedto examine clinical, demographic and offending characteristics and correlates of problem behaviours for patients admitted to the first forensic PICU in Australia.Aims: To identify common characteristics held by patients admitted to one high secure forensic PICU in Australia.Method: Retrospective file review occurred for patients admitted between March 2019 and May 2020, during which 96 male patients were admitted.Results: Mean (range) age was 37.3 (21–76) years, and when admitted most patients were: single (n = 80; 83.3%), homeless (n = 52; 54.2%), had not completed high-school education (n = 60; 62.5%), had histories of trauma (n = 38; 39.6%) and antisocial behaviour (n = 40; 41.7%) in adolescence and presented with personality disorder (n = 23; 24.0%) and substance abuse (n = 93; 96.9%). Frequent problem behaviours, particularly aggression (n = 65; 67.7%), were encountered and rates of seclusion (n = 62; 64.6%) were high. Segregation in prison prior to admission and co-morbid personality disorder were associatedwith increased likelihood of aggression or self-harm respectively occurring.Conclusion: With high mental illness acuity and significant behavioural risk complicated by multi-vulnerability, forensic PICUs need specialist environments, models of care and high level relational and de-escalation staff expertise tomaintain safety and promote recovery.