Assessing the risk of violence in patients

Absolute risks of self-harm and interpersonal violence by diagnostic category following first discharge from inpatient psychiatric care

BACKGROUND

Persons discharged from inpatient psychiatric services are at greatly elevated risk of harming themselves or inflicting violence on others, but no studies have reported gender-specific absolute risks for these two outcomes across the spectrum of psychiatric diagnoses. We aimed to estimate absolute risks for self-harm and interpersonal violence post-discharge according to gender and diagnostic category.

METHODS

Danish national registry data were utilized to investigate 62,922 discharged inpatients, born 1967-2000. An age and gender matched cohort study was conducted to examine risks for self-harm and interpersonal violence at 1 year and at 10 years post-discharge. Absolute risks were estimated as cumulative incidence percentage values.

RESULTS

Patients diagnosed with substance misuse disorders were at especially elevated risk, with the absolute risks for either self-harm or interpersonal violence being 15.6% (95% CI 14.9, 16.3%) of males and 16.8% (15.6, 18.1%) of females at 1 year post-discharge, rising to 45.7% (44.5, 46.8%) and 39.0% (37.1, 40.8%), respectively, within 10 years. Diagnoses of personality disorders and early onset behavioral and emotional disorders were also associated with particularly high absolute risks, whilst risks linked with schizophrenia and related disorders, mood disorders, and anxiety/somatoform disorders, were considerably lower.

CONCLUSIONS

Patients diagnosed with substance misuse disorders, personality disorders and early onset behavioral and emotional disorders are at especially high risk for internally and externally directed violence. It is crucial, however, that these already marginalized individuals are not further stigmatized. Enhanced care at discharge and during the challenging transition back to life in the community is needed.

Assaults and threats on psychiatrists

Aims and Method

To determine the annual rates of assaults and threats to psychiatrists, describing the situations and staff involved, using a retrospective postal questionnaire of 139 doctors working in South Wales.

Results

Over the year, 17% of respondents reported one or more assaults (of these, 42% were assaulted more than once) and 32% reported one or more threats. The most junior senior house officers (SHOs) were significantly more likely to have experienced an incident, regardless of the individual's gender or attendance at a course in managing aggression. Most assaults (61%) were committed by patients from general adult psychiatry, and half occurred during urgent assessments. Eighteen (58%) of the assailants were known to have previously assaulted amember of staff, and this information was known to the doctor before the assault for 16 (88%). Five (16%) of the assailants had been drinking alcohol prior to the assault. Twenty-nine (78%) of the assaults were documented in the case notes and 6 (19%) were reported to management.

Clinical Implications

Some staff (in particular, inexperienced SHOs) are at greater risk, and efforts should be made to identify and help these individuals and/or grades to deal with aggression. All psychiatric staff should be trained to manage violence. Staff should be encouraged to report incidents to management, so that employers can identify and address problem areas.

Care Programme Approach – documentation of past risk-related behaviour

Aims and Method

The aim of the study was to assess the practicality of extracting past risk-related information from case records and to assess how this process might be cost-effectively incorporated in routine practice. Case records of 43 patients referred to the Care Programme Approach in Dundee were examined.

Results

Our study yielded relevant information – 39% of patients had a history of violence, 58% of self-harm or suicide, 58% of severe self-neglect and 72% of non-compliance with medication. However, it took an average of 5 hours to conduct a thorough review of each case because the notes were bulky and poorly organised.

Clinical Implications

Retrospective review of conventional case records in routine practice is likely to be incomplete and misleading. Prospective recording should be practicable if used selectively, but requires a standardised approach to clinical recording and case note maintenance. The risk recording system we developed, incorporating a dated index of incidents by risk category, followed by brief summaries of each incident, provides key clinical information not available from a simple check list while not sacrificing brevity.

Violent Fantasies in Young Men With Autism Spectrum Disorders: Dangerous or Miserable Misfits? Duty to Protect Whom?

Predictability of dangerousness in association with mental disorders remains elusive, outside of a few relatively well-established risk factors for the prognostication of violence, such as male sex, the presence of a psychotic disorder, and comorbid substance abuse. In clinical practice, inquiry into the presence of aggressive or violent ideation, in the form of ideas of homicide or suicide, is part of a standard mental status examination. Nonetheless, fantasy life, when it concerns harm toward others, may not be as reliable an indicator of imminent danger as it may be in the case of self-harm. Five cases of young Italian men with Asperger syndrome and recurrent and extremely violent femicide fantasies are presented. While there is no direct correlation between autism spectrum conditions and violence, as other humans, persons with an autistic condition are capable of committing crimes, including homicide. All five had in common a number of characteristics and behaviors felt to be pathoplastic: All had been bullied, all had been romantically rejected, all were long-standing First Person Shooter (FPS) game players, and all were avid violent pornography consumers. The potential for an actual neurocognitive impact of violent video games, well documented in the literature, and its combination with personal life history and chronic habituation following long-standing violent pornography use is discussed in the context of social and emotional vulnerabilities. While aggressive fantasies cannot and should not be underestimated, in countries where duty to protect legislation does not exist, a clinical approach is imperative, as, incidentally, should be anywhere.

Cost-effectiveness and budget impact of long-acting risperidone in Portugal: a modeling exercise

BACKGROUND

Previous analyses have shown that long-acting risperidone (LAR) is cost-effective in several Western countries. In Portugal, however, the costs of key services are lower. Therefore, available evidence in other countries may have limited relevance.

OBJECTIVE

To estimate costs and effects of LAR versus a conventional depot and a short-acting oral atypical antipsychotic over a 5-year period in Portugal.

METHODS

An existing discrete event model was adapted to reflect the Portuguese healthcare setting, based on expert opinion, clinical, epidemiological, and cost data. The model compares three scenarios. In scenario 1, patients start with a conventional depot; in scenario 2, with LAR; and in scenario 3, with oral risperidone. The model simulates individual patient histories while taking into account patient characteristics such as risk to society and side-effects. Subsequently, the model simulates patient histories in terms of outpatient appointments, psychotic episodes, treatment, compliance, symptom scores, lack of ability to take care presenting an actual risk, and treatment setting. Outcomes were number of psychotic episodes, cumulative symptom score and direct medical costs. Univariate sensitivity analyses were carried out.

RESULTS

Compared to a conventional depot and an oral atypical, LAR was estimated to save approximately euro 3603 and euro 4682 per patient (respectively) and avoid 0.44 and 0.59 relapses per patient in 5 years. Sensitivity analyses showed that the outcome of dominance was only sensitive to estimates about unit costs of hospital/institutionalization, potential risk, and to the reduction in symptoms by use of atypicals.

CONCLUSION

Based on this modeling exercise, it could be expected that LAR may be a cost-effective treatment with limited budget impact in Portugal. However, further studies are required to test the generalizability of the results of the present modeling study to the larger population of Portugal.

Modelling the impact of compliance on the costs and effects of long-acting risperidone in Canada

Schizophrenia is a chronic, relapsing disease that requires more healthcare resources to manage than any other single psychiatric illness. The main cost of treatment is hospitalization as a result of the exacerbation of symptoms often caused by poor compliance. Although the costs of hospitalization and relapse have been well documented, the differential effects of various medications on healthcare expenditure are still being determined. The aim of the present study was to estimate the cost effectiveness of long-acting risperidone in the treatment of high-risk, non-compliant patients with schizophrenia over a 5-year period in Canada. A discrete event model was developed comparing three scenarios, each with a different starting treatment: haloperidol depot, long-acting risperidone or oral risperidone. Second and third-line treatment options were olanzapine and clozapine, respectively, for all three scenarios. On the basis of 3000 simulated patient characteristics, the model generated individual patient histories. Outcomes included the number and duration of psychotic episodes, the cumulative Positive and Negative Syndrome Scale (PANSS) score and direct medical costs. The time horizon of the model was 5 years and a 5% discount rate was used for costs and effects. The perspective of the model was that of the Canadian healthcare system. After 5 years, treatment with long-acting risperidone saved Canada dollars 6908 and Canada dollars 13,130 (discounted) and avoided 0.28 and 0.54 relapses per patient, compared with haloperidol depot and oral risperidone, respectively. In this model, initiating treatment of high-risk, non-compliant patients with schizophrenia with long-acting risperidone was the dominant strategy. With long-acting risperidone, direct costs were lower and clinical effectiveness was greater, compared with haloperidol depot or oral risperidone, during years 4 and 5.

Modelling the treated course of schizophrenia: development of a discrete event simulation model

In schizophrenia, modelling techniques may be needed to estimate the long-term costs and effects of new interventions. However, it seems that a simple direct link between symptoms and costs does not exist. Decisions about whether a patient will be hospitalized or admitted to a different healthcare setting are based not only on symptoms but also on social and environmental factors. This paper describes the development of a model to assess the dependencies between a broad range of parameters in the treatment of schizophrenia. In particular, the model attempts to incorporate social and environmental factors into the decision-making process for the prescription of new drugs to patients. The model was used to analyse the potential benefits of improving compliance with medication by 20% in patients in the UK. A discrete event simulation (DES) model was developed, to describe a cohort of schizophrenia patients with multiple psychotic episodes. The model takes into account the patient's sex, disease severity, potential risk of harm to self and society, and social and environmental factors. Other variables that change over time include the number of psychiatric consultations, the presence of psychotic episodes, symptoms, treatments, compliance, side-effects, the lack of ability to take care of him/herself, care setting and risk of harm. Outcomes are costs, psychotic episodes and symptoms. Univariate and multivariate sensitivity analyses were performed. Direct medical costs were considered (year of costing 2002), applying a 6.0% discount rate for costs and a 1.5% discount rate for outcome. The timeframe of the model is 5 years. When 50% of the decisions about the patient care setting are based on symptoms, a 20% increase in compliance was estimated to save 16,147 pounds and to avoid 0.55 psychotic episodes per patient over 5 years. Sensitivity analysis showed that the costs savings associated with increased compliance are robust over a range of variations in parameters. DES offers a flexible structure for modelling a disease, taking into account how a patient's history affects the course of the disease over time. This approach is particularly pertinent to schizophrenia, in which treatment decisions are complex. The model shows that better compliance increases the time between relapses, decreases the symptom score, and reduces the requirement for treatment in an intensive patient care setting, leading to cost savings. The extent of the cost savings depends on the relative importance of symptoms and of social and environmental factors in these decisions.