Evidence for a relationship between the duration of untreated psychosis and the proportion of psychotic homicides prior to treatment

Systematic Review and Meta-Analysis: Risk Factors of Violence During First-Episode Psychosis

Most people with a psychotic illness will never be violent; however, it is widely known that violence is more prevalent in this group compared to the general community, particularly during first-episode psychosis (FEP). Despite this, there is limited research into what contributes to this increased risk during FEP. The present systematic review aimed to identify whether certain risk factors are differentially associated with severity and timing of violence perpetration during FEP. The following databases were used to identify studies, up to March 8, 2024: MEDLINE, Embase, PsycINFO, CINAHL, and ProQuest. A total of 15 studies were included. Male gender, non-white ethnicity, history of violence, higher general psychopathology, and recent substance use were significantly associated with any violence, regardless of the time at which violence was committed. Serious violence was not associated with any risk factors. Higher general psychopathology was associated with any violence committed before presentation to services, while male gender was associated with violence perpetrated at service entry. Only male gender and unemployment were associated with violence committed after treatment. Based on our results, risk factors appear to vary according to the severity and timing of violence. These risk factors also overlap with those found associated with violence risk in the general community, and those correlated with the risk of psychosis. Past studies are limited in the range of risk factors studied and further work is needed to understand correlates of violence in people who have experienced FEP to inform treatment options.

Systematic Review and Meta-analysis: Rates of Violence During First-Episode Psychosis (FEP)

BACKGROUND

Most people with psychotic disorders will never commit an act of violence. However, the risk of violence committed by people with schizophrenia is higher than the general population. Violence risk is also known to be highest during the first episode of psychosis compared to later stages of illness. Despite this, there have been no comprehensive reviews conducted in the past 10 years examining rates of violence during FEP. We aimed to provide an updated review of the rate of violence in people with FEP.

STUDY DESIGN

Meta-analytical techniques were used to identify pooled proportions of violence according to severity (less serious, serious, severe) and timing of violence (before presentation, at first presentation, after presentation to services).

STUDY RESULTS

Twenty-two studies were included. The pooled prevalence was 13.4% (95% CI [9.0%-19.5%]) for any violence, 16.3% (95% CI [9.1%-27.4%]) for less serious violence, 9.7% (95% CI [5.4%-17.0%]) for serious violence and 2.7% for severe violence, regardless of time point. The pooled prevalence of any violence was 11.6% (95% CI [6.8%-18.9%]) before presentation, 20.8% (95% CI [9.8%-38.7%]) at first presentation and 13.3% (95% CI [7.3%-23.0%]) after presentation to services.

CONCLUSION

Overall, rates of violence appear to be lower in more recent years. However, due to the high between-study heterogeneity related to study design, the findings must be interpreted with consideration of sample characteristics and other contextual factors. The prevalence of violence remained high at all-time points, suggesting that more targeted, holistic, and early interventions are needed for clinical FEP groups.

Homicide in the context of psychosis: analysis of prior service utilisation and age at onset of illness and violence

BACKGROUND

Public stigma and fear are heightened in cases of extreme violence perpetrated by persons with serious mental illness (SMI). Prevention efforts require understanding of illness patterns and treatment needs prior to these events unfolding.

AIMS

To examine mental health service utilisation by persons who committed homicide and entered into forensic care, to investigate the adequacy of mental healthcare preceding these offences.

METHOD

Forensic patients across two mental health hospitals in Ontario with an admitting offence of homicide between 2011 and 2021 were identified (n = 112). Sociodemographic, clinical and offence-related variables were coded from the health record and reports prepared for the forensic tribunal.

RESULTS

Most patients (75.7%) had mental health contacts preceding the homicide, with 28.4% having a psychiatric in-patient admission in the year prior. For those with service contacts in the year preceding, 50.9% had had only sporadic contact and 70.7% were non-adherent with prescribed medications. Victims were commonly known to the individual (35.7%) and were often family members in care-providing roles (55.4%). Examination of age at onset of illness and offending patterns suggested that most persons admitted to forensic care for homicide act in the context of illness and exhibit a low frequency of pre-homicide offending.

CONCLUSIONS

Many individuals admitted to forensic care for homicide have had inadequate mental healthcare leading up to this point. Effective responses to reduce and manage risk should encompass services that proactively address illness-related (e.g. earlier access and better maintenance in care) and criminogenic (e.g. substance use treatment, employment and psychosocial supports) domains.

A clinical risk prediction tool for identifying the risk of violent offending in severe mental illness: A retrospective case-control study

BACKGROUND

Individuals with severe mental illness are at a higher risk of violence than the general population. However, there is a lack of available and simple tools to screen for the risk of violent offending in clinical settings. We aimed to develop an easy-to-use predictive tool to assist clinicians' decision-making to identify risk of violent offences in China.

METHODS

We identified 1157 patients with severe mental illness who committed violent offending and 1304 patients who were not suspected of violent offending in the matched living areas. We used stepwise regression and Lasso's method to screen for predictors, built a multivariate logistic regression model, and performed internal validation with the 10- fold cross-validation to develop the final prediction model.

RESULTS

The risk prediction model for violence in severe mental illness included age (beta coefficient (b) = 0.05), male sex (b = 2.03), education (b = 1.14), living in rural areas (b = 1.21), history of homeless (b = 0.62), history of previous aggression (b = 1.56), parental history of mental illness (b = 0.69), diagnosis of schizophrenia (b = 1.36), episodes (b = -2.23), duration of illness (b = 0.01). The area under curve for the predictive model for the risk of violence in severe mental illness was 0.93 (95% CI: 0.92-0.94).

CONCLUSIONS

In this study, we developed a predictive tool for violent offending in severe mental illness, containing 10 items that can be easily used by healthcare practitioners. The model was internally validated and has the potential for assessing the risk of violence in patients with severe mental illness in community routine care, although external validation is necessary.

Socio-demographic, clinical and offense-related characteristics of forensic psychiatric inpatients in Hunan, China: a cross-sectional survey

BACKGROUND

There is still a lack of comprehensive research on the profile of patients in forensic mental health hospitals in China. This study aims to investigate the socio-demographic, clinical, and offense-related characteristics of mentally ill offenders in the Hunan Provincial Forensic Psychiatric Hospital in China.

METHODS

This study was conducted from November 1, 2018, to January 30, 2019. The data of socio-demographic, clinical, and offense-related characteristics of the patients were collected. The Brief Psychiatric Rating Scale (BPRS), the Modified Overt Aggression Scale (MOAS), and the Clinical Global Impression-Severity (CGI-S) scale were used to measure their psychiatric conditions.

RESULTS

A total of 461 participants were enrolled in this study. Among them, 86.3% were males and 56.8% were unmarried; the average age of them was 44.7 ± 10.1 years, and the mean years of education were 7.51 ± 3.3 years. Before their current offense, a total of 345 patients (74.8%) had sought medical help for their mental illnesses. While 303 (87.8%) of these patients were prescribed antipsychotics, 254 (73.6%) failed to take them regularly. Of all the inpatients, 90.5% were diagnosed with schizophrenia; 385 (83.5%) engaged in homicidal offenses, with 54.0% of the victims being their family members. In homicide cases, the relatives were more likely to be victims of female patients. The mean length of stay in the forensic hospital was 8.02 ± 4.74 years, and over 80.0% of the patients had been hospitalized for over 5 years.

CONCLUSIONS

To our knowledge, this is the first study investigating the profile of forensic patients receiving compulsory treatments in a forensic psychiatric hospital in China. These results add to the world literature on the characteristics of forensic patients and can help identify common treatment and risk-related needs of this population.

The neurobiology of duration of untreated psychosis: a comprehensive review

Duration of untreated psychosis (DUP) is defined as the time from the onset of psychotic symptoms until the first treatment. Studies have shown that longer DUP is associated with poorer response rates to antipsychotic medications and impaired cognition, yet the neurobiologic correlates of DUP are poorly understood. Moreover, it has been hypothesized that untreated psychosis may be neurotoxic. Here, we conducted a comprehensive review of studies that have examined the neurobiology of DUP. Specifically, we included studies that evaluated DUP using a range of neurobiologic and imaging techniques and identified 83 articles that met inclusion and exclusion criteria. Overall, 27 out of the total 83 studies (32.5%) reported a significant neurobiological correlate with DUP. These results provide evidence against the notion of psychosis as structurally or functionally neurotoxic on a global scale and suggest that specific regions of the brain, such as temporal regions, may be more vulnerable to the effects of DUP. It is also possible that current methodologies lack the resolution needed to more accurately examine the effects of DUP on the brain, such as effects on synaptic density. Newer methodologies, such as MR scanners with stronger magnets, PET imaging with newer ligands capable of measuring subcellular structures (e.g., the PET ligand [11C]UCB-J) may be better able to capture these limited neuropathologic processes. Lastly, to ensure robust and replicable results, future studies of DUP should be adequately powered and specifically designed to test for the effects of DUP on localized brain structure and function with careful attention paid to potential confounds and methodological issues.

Violence in relation to cognitive deficits and symptom severity in a sample of Egyptian patients with schizophrenia

BACKGROUND

Patient with schizophrenia are significantly more likely to be violent than general population; and the consequences of this violence risk are often very serious for the patients, their caregivers, and the entire community.

AIM

To assess the risk of violence in patients with schizophrenia and its correlation with severity of symptoms and cognitive functions.

METHODS

A cross-sectional comparative study conducted in Okasha institute of psychiatry including 50 patients with schizophrenia compared to 50 healthy control group regarding violence risk as assessed by Historical, Clinical, and Risk Management-20 (HCR-20), case group was assessed using Structured Clinical Interview for DSM-IV (SCID-I), Positive and Negative Syndrome Scale (PANSS), cognitive functions were assessed by Wechsler Adult Intelligence Scale (WAIS), Trail Making Test (TMT) Part A and B, the Wisconsin Card Sorting Test (WCST), and the Wechsler Memory Scale (WMS).

RESULTS

There was a statistically significant difference between case and control groups regarding risk of violence where 58% of the case group were found to have risk of violence compared to only 18% in the control group. There was a significant correlation between this risk of violence and period of untreated psychosis, no of episodes, and history of substance use; also was significantly correlated with PANSS and Wisconsin card sorting test subscales. Regarding logistic regression analysis for factors affecting violence risk; total PANSS score and history of substance use were significant independent factors that increase violence risk.

CONCLUSION

Violence risk in patient with schizophrenia is a cardinal factor that may affect life of the patients, their family, and society; this risk can be affected by different factors including severity of symptoms, no of episodes, history of substance use, and cognitive function of the patients.

Mental health service contact following release from prison or hospital discharge in those with psychosis

BACKGROUND

An association exists between psychosis and criminal offending, which evidence suggests can be reduced by effective mental health care for this vulnerable population. However mental health services often lose contact with people after diagnosis. The association between the first episode of psychosis and criminal offending highlights the need for effective mental health care for this vulnerable population.

AIMS

To investigate the association between the first diagnosis of psychosis (FDP) in prison or hospital and subsequent mental health service contact following release from prison or discharge from hospital.

MATERIALS AND METHODS

Individuals with a FDP either in prison (n = 492) or hospital setting (n = 24,910) between July 2006 and December 2011 in NSW (Australia), were followed post-release or discharge until their first mental health service contact in the community, the occurrence of an offence, death, or completion of the study period at the end of December 2012. Cox regression models were used to examine the predictors for the mental health service contacts following release or discharge.

RESULTS

Over 70% of those with a FDP in prison or hospital had a psychosis-related or any community-based mental health service contact following release or discharge between July 2006 and December 2012. Those with a FDP in prison were more likely to have no contact with mental health services than those in hospital with no prior offence record (hazard ratio, HR = 3.14, 95% CI: 2.66-3.72 and adjusted hazard ratio, aHR = 3.05, 95% CI: 2.56-3.63) within a median follow-up time of 25 days for the prison group and 26 days for hospital group. Males, individuals of Aboriginal heritage and individuals diagnosed with substance-related psychoses compared to those with schizophrenia and related psychoses were less likely to have a mental health service contact following release or discharge in both the univariable and multivariable analysis.

CONCLUSION

This study suggests that prior offending or a previous prison episode represents a barrier to mental health service contact in the community for those with a FDP. Effective rehabilitation planning while exiting prison and discharge planning from hospital are essential to the successful reintegration of these individuals with a FDP.

Reducing the Duration of Untreated Psychosis (DUP) in a US Community: A Quasi-Experimental Trial

Objective

Duration of Untreated Psychosis (DUP) remains unacceptably long and limits effectiveness of care. To determine whether an early detection campaign ("Mindmap") can reduce DUP in a US community setting.

Methods

In this nonrandomized controlled trial, Mindmap targeted the catchment of one specialty first-episode service or FES (STEP, Greater New Haven) from 2015 to 2019, while usual detection efforts continued at a control FES (PREP, Greater Boston). Mindmap targeted diverse sources of delay through mass & social media messaging, professional outreach & detailing, and rapid enrollment of referrals. Both FES recruited 16-35 years old with psychosis onset ≤3 years. Outcome measures included DUP-Total (onset of psychosis to FES enrollment), DUP-Demand (onset of psychosis to first antipsychotic medication), and DUP-Supply (first antipsychotic medication to FES enrollment).

Results

171 subjects were recruited at STEP and 75 at PREP. Mindmap was associated with an increase in the number of referrals and in efficiency of engagement at STEP. Pre-campaign DUP (2014-2015) was equivalent, while Mindmap was associated with DUP reductions at STEP but not PREP. DUP-Total fell significantly in both the first and the second quartile (11.5 and 58.5 days reduction per campaign year, respectively). DUP-Demand and DUP-Supply fell in the third quartiles only (46.3 and 70.3 days reduction per campaign year, respectively). No reductions were detectable across all quartiles at PREP, but between site comparisons were not significant.

Conclusions

This is the first controlled demonstration of community DUP reduction in the US, and can inform future early detection efforts across diverse settings.

Research findings on Greek forensic patients found not guilty by reason of insanity. A juxtaposition of patients who committed a criminal offense during their first psychotic episode with those who did so later in the course of their illness

The aim of this study was to compare the baseline characteristics (demographic, psychiatric-psychopathological and legal) among Greek forensic patients found not guilty by reason of insanity. The first step of this approach being differentiating patients who committed a criminal offense during their first psychotic episode from the ones who did so later in the course of their illness. All patients were hospitalized in the Department of Forensic Psychiatry (DFP) of the Psychiatric Hospital of Thessaloniki (PHT) from January 2015 to January 2020 and were examined in order to be included in the study. The final research sample consisted of 78 patients (70 identifying themselves as males and 8 identifying themselves as females) aged 18 and older, 21 of whom committed a criminal offense during their first psychotic episode (FEP, N = 21) and 57 did so later on in the course of their illness (Course, N = 57). Data were collected from multiple sources and several psychometric tools were used (Mini International Neuropsychiatric Interview-M.I.N·I, Positive And Negative Syndrome Scale-PANSS, Addiction Severity Index-ASI, CAGE Questionnaire, Hostility and Direction of Hostility Questionnaire-HDHQ, Global Assessment of Functioning-GAF and Aggression Questionnaire). Comparing the two groups (FEP vs. Course) we found that patients in FEP were younger, had experienced stressful life events in the last 24 months, committed more serious violent crimes, and more frequently attempted suicide after the crime. Their victims were usually members of their family. The main psychometric disparities between the two groups were found in the "Hostility" score of the Aggression questionnaire, and the items "Criticism of Others" and "Paranoid Hostility" of the HDHQ questionnaire, where patients in FEP scored lower. Patients in FEP scored significantly higher in items P1 (delusions), P4 (excitement), P6 (suspiciousness/persecution) and P7 (hostility) of the PANSS scale. No statistically significant differences were found between the two groups regarding their evaluation with the CAGE, ASI or GAF questionnaires. When comparing the patients' present scores in PANSS scale, the patients in FEP had lower total scores in the Positive and the General Psychopathology subscales. Both groups showed significant improvement during hospitalization in all scales (PANSS & GAF), except for the Negative Subscale of the PANSS scale. Through logistic regression analysis, we found that patients in FEP were younger, more likely to have recently experienced stressful life events and more likely to have assaulted a member of their family. Patients with higher scores in the "Hostility" subscale of the Aggression questionnaire were found to remain at risk for committing a crime during the course of their illness. These findings underline the need to design and develop specialized mental health services in order to identify and treat patients involved in violent crime in a timely and effective manner addressing their multiple needs.

First diagnosis of psychosis in the prison: results from a data-linkage study

BACKGROUND

Psychosis is more prevalent among people in prison compared with the community. Early detection is important to optimise health and justice outcomes; for some, this may be the first time they have been clinically assessed.

AIMS

Determine factors associated with a first diagnosis of psychosis in prison and describe time to diagnosis from entry into prison.

METHOD

This retrospective cohort study describes individuals identified for the first time with psychosis in New South Wales (NSW) prisons (2006-2012). Logistic regression was used to identify factors associated with a first diagnosis of psychosis. Cox regression was used to describe time to diagnosis from entry into prison.

RESULTS

Of the 38 489 diagnosed with psychosis for the first time, 1.7% (n = 659) occurred in prison. Factors associated with an increased likelihood of being diagnosed in prison (versus community) were: male gender (odds ratio (OR) = 2.27, 95% CI 1.79-2.89), Aboriginality (OR = 1.81, 95% CI 1.49-2.19), older age (OR = 1.70, 95% CI 1.37-2.11 for 25-34 years and OR = 1.63, 95% CI 1.29-2.06 for 35-44 years) and disadvantaged socioeconomic area (OR = 4.41, 95% CI 3.42-5.69). Eight out of ten were diagnosed within 3 months of reception.

CONCLUSIONS

Among those diagnosed with psychosis for the first time, only a small number were identified during incarceration with most identified in the first 3 months following imprisonment. This suggests good screening processes are in place in NSW prisons for detecting those with serious mental illness. It is important these individuals receive appropriate care in prison, have the opportunity to have matters reheard and possibly diverted into treatment, and are subsequently connected to community mental health services on release.

DECLARATION OF INTEREST

None.

Recent violence and legal involvement among young adults with early psychosis enrolled in Coordinated Specialty Care

AIM

Individuals with serious mental illnesses have a small increased risk of engaging in violence or legal involvement compared to the general population. This seems to be particularly true for young adults experiencing early stages of psychosis. This study analysed the prevalence of and risk factors for reports of violence and legal involvement in a sample of young adults receiving Coordinated Specialty Care for early non-affective psychosis.

METHODS

A total of 373 young adults (ages 16-30) within 2 years of the onset of non-affective psychosis were enrolled in 10 Coordinated Specialty Care sites in New York State from October 2013 to August 2016. Baseline violent ideation or behaviour and legal involvement was described and predictors identified.

RESULTS

Approximately one-quarter of individuals had either recent violent ideation or behaviour at baseline (n = 90, 24.6%); nearly one-tenth of the sample reported recent legal involvement (n = 33, 9.0%). Individuals with violent ideation or behaviour had lower levels of education and were less likely to be working. Those with recent legal involvement were more likely to be male and more likely to have substance use (alcohol, cannabis and other drugs).

CONCLUSIONS

The overall rate of recent violent ideation or behaviour is similar to other studies; up to one-third of individuals experiencing a first-episode of psychosis (FEP) report violence. Recent legal involvement was strongly associated with substance use. This study presents insight into violence and legal involvement among individuals with FEP and indicates the need for further research.

The utility of outpatient commitment: Reduced-risks of victimization and crime perpetration

BACKGROUND

Outpatient civil commitment (OCC) provisions, community treatment orders (CTOs) in Australia and Commonwealth nations, are part of mental health law worldwide. This study considers whether and by what means OCC provides statutorily required "needed-treatment" addressing two aspects of its legal mandate to protect the safety of self (exclusive of deliberate-self-harm) and others.

METHOD

Over a 12.4-year period, records of hospitalized-psychiatric-patients, 11,424 with CTO-assignment and 16,161 without CTO-assignment were linked to police-records. Imminent-safety-threats included perpetrations and victimizations by homicides, rapes, assaults/abductions, and robberies. "Need for treatment" determinations were validated independently by Health of the Nations Scale (HoNOS) severity-score-profiles. Logistic regressions, with propensity-score- adjustment and control for 46 potential confounding-factors, were used to evaluate the association of CTO-assignment with occurrence-risk of perpetrations and victimizations.

RESULTS

CTO-assignment was associated with reduced safety-risk: 17% in initial-perpetrations, 11% in initial-victimizations, and 22% for repeat-perpetrations. Each ten-community-treatment-days in interaction with CTO-assignment was associated with a 3.4% reduced-perpetration-risk. CTO-initiated-re-hospitalization was associated with a 13% reduced-initial-perpetration-risk, a 17% reduced-initial-victimization-risk, and a 22% reduced-repeat-victimization-risk. All risk-estimates appear to be the unique contributions of the CTO, CTO-initiated-re-hospitalization, or the provision of ten-community-treatment-days-i.e. after accounting for the influence of prior crimes and victimizations, ethnic-bias, neighborhood disadvantage and other between-group differences in the analysis.

CONCLUSIONS

CTO assignment's association with reduced criminal-victimization and perpetration-risk, in conjunction with requiring participation in needed-treatment via re-hospitalization and community-service, adds support to the conclusion that OCC is to some extent fulfilling its legal objectives related to protecting safety of self (exclusive of deliberate-self-harm), and others.

Informal Caregiving Relationships in Psychosis: Reviewing the Impact of Patient Violence on Caregivers

A modest association can be found between people with a schizophrenia spectrum diagnosis (psychosis) and perpetrating acts of violence. When a person with psychosis does engage in violence, it is their informal carers, when compared to those from the general population, who are more likely to be the targets, and violence will often occur within the family home. Despite the importance of carer support for improving patient outcomes, our understanding of how carers are impacted by patient initiated violence in psychosis remains limited. This paper reviews literature documenting the effects of patient-initiated violence in psychosis on carer functioning. The review comprised searches of Medline, PsychInfo, Embase, and Web of Science databases and the hand searches of reference lists from relevant published papers. The review was limited to English language publications from inception to 11th September 2017, and where carer experiences following reports of violence from patients with psychosis were specifically recorded. Data from 20 papers using mixed methodologies were reviewed. Patient violence in psychosis was linked to poorer carer outcomes, including carer reports of burden, trauma, fear, and helplessness. There is, however, a significant need for further studies to systematically quantify the impact and correlates of patient initiated violence on psychosis caregivers, and improve prevention.

Perceptions of mental illness etiology and treatment in Saudi Arabian healthcare students: A cross-sectional study

OBJECTIVES

Cultural beliefs often affect people's attitude toward mental illness and their help-seeking behavior. Belief in superstitious causes of mental illness can lead to seeking help from non-medical practitioners, which might hinder treatment. This study aimed to explore the perception of mental illness and help-seeking behavior among healthcare students.

METHODS

A cross-sectional study carried out on a sample of 400 randomly selected undergraduate health professional students in Riyadh. Data collection involved two self-administered questionnaires: the causes and treatment routes for a female vignette with psychosis and the General Health Questionnaire-28.

RESULTS

The mean age of participants was 20.9 years, and 68.2% were male. Although participants reported a lack of personal history of mental illness (81.9%), female participants were more likely to disclose psychological distress as measured by General Health Questionnaire-28 (67.6%). Mental illness (47.2%) was chosen as the main reason for the problem depicted by the female vignette. General Health Questionnaire-28 scores for "caseness" did not affect perception about psychosis versus non-caseness. Factor analysis produced four dimensions for causes of psychosis: "social," "psychobiological," "superstitious," and "socially undesirable"; and two treatment routes: "clinical" versus "social interventions." Male participants leaned toward social factors for the cause of psychosis and were more likely to endorse social interventions for treatment.

CONCLUSION

Healthcare students in Riyadh remained supportive of a biomedical approach toward the causation and treatment of mental illness. The use of religious practices as an adjunct was apparent. Students, especially females, were prone to experience more psychological distress.

Factors associated with changes in hospitalisation in patients prescribed clozapine

OBJECTIVE

The objective of this study was to examine whether delays in clozapine treatment affect outcomes once clozapine is started and identify factors that affect these outcomes.

METHOD

Patients starting clozapine in a four year period at South London and the Maudsley NHS Foundation Trust were included. Clinical details were gathered from clinical notes. Primary outcome was net change in inpatient admissions comparing the periods before and after clozapine was started.

RESULTS

There was no significant association between the length of clozapine delay (mean clozapine delay = 3.93 years) and number or length of inpatient admissions once clozapine had been started (mean net change in days of admission = 16.74 days), F value = 0.901, p = 0.345. Clozapine reduced the total number of bed days per year, but only if treatment was continued - stopping resulted in inpatient admissions returning to pre-clozapine levels. Younger patients had a greater reduction in bed days when taking clozapine (p = 0.027).

CONCLUSION

Clozapine reduces the number of inpatient days, regardless of the chronicity of the illness at the time clozapine was started. Continued compliance with clozapine is necessary to maintain this benefit. Reduction in bed days is greater in younger patients, suggesting early initiation of clozapine may be beneficial.

Infanticide by a mother with untreated schizophrenia

This case report describes a 30-year-old mother of four with a 6-year history of obvious paranoia and psychosis from a poor rural farming community in India. Her symptoms and social functioning deteriorated over time, but the family did not seek medical care until she killed her 3-month-old daughter while under the influence of command hallucinations. Subsequent treatment with antipsychotic medication resulted in control of her psychotic symptoms and greatly improved psychosocial functioning. This case is an example of one of the many negative consequences of a community’s failure to recognize and treat mental illnesses. The patient had severe symptoms that were obvious to all for 6 years prior to the infanticide, but the family’s lack of basic knowledge about mental illness, the lack of locally available mental health care, and the relatively high cost of care prevented family members from obtaining the treatment that almost certainly would have prevented the tragic death of her infant. Changing these three factors in poor rural communities of low- and middle-income countries is the challenge we must work together to address. Infanticide secondary to untreated mental illness is a glaring reminder of how urgent this task is.

How much do we know about schizophrenia and how well do we know it? Evidence from the Schizophrenia Library

BACKGROUND

True findings about schizophrenia remain elusive; many findings are not replicated and conflicting results are common. Well-conducted systematic reviews have the ability to make robust, generalizable conclusions, with good meta-analyses potentially providing the closest estimate of the true effect size. In this paper, we undertake a systematic approach to synthesising the available evidence from well-conducted systematic reviews on schizophrenia.

METHOD

Reviews were identified by searching Medline, EMBASE, CINAHL, Current Contents and PsycINFO. The decision to include or exclude reviews, data extraction and quality assessments were conducted in duplicate. Evidence was graded as high quality if reviews contained large samples and robust results; and as moderate quality if reviews contained imprecision, inconsistency, smaller samples or study designs that may be prone to bias.

RESULTS

High- and moderate-quality evidence shows that numerous psychosocial and biomedical treatments are effective. Patients have relatively poor cognitive functioning, and subtle, but diverse, structural brain alterations, altered electrophysiological functioning and sleep patterns, minor physical anomalies, neurological soft signs, and sensory alterations. There are markers of infection, inflammation or altered immunological parameters; and there is increased mortality from a range of causes. Risk for schizophrenia is increased with cannabis use, pregnancy and birth complications, prenatal exposure to Toxoplasma gondii, childhood central nervous system viral infections, childhood adversities, urbanicity and immigration (first and second generation), particularly in certain ethnic groups. Developmental motor delays and lower intelligence quotient in childhood and adolescence are apparent.

CONCLUSIONS

We conclude that while our knowledge of schizophrenia is very substantial, our understanding of it remains limited.

The impact of first episode psychosis on sibling quality of life

PURPOSE

The adverse impact of first episode psychosis (FEP) upon parents' quality of life (QoL) has been well documented. However, the determinants and levels of QoL remain poorly understood in siblings of young people experiencing FEP. This study aimed to characterise and establish the predictors of QoL for siblings of young people with FEP.

METHOD

Survey methodology was used to examine the experience of 157 siblings in the first 18 months of their brother or sister's treatment for FEP. The World Health Organisation Quality of Life Scale-Bref (WHOQOL-Bref) was used to assess siblings' QoL. A series of multivariate regression analyses were conducted to determine the relationships between illness characteristics and siblings' QoL.

RESULTS

Younger sisters reported the lowest satisfaction of QoL. Older brothers were the most satisfied. When the young person with FEP had attempted suicide and/or had been physically violent, siblings reported less satisfaction in all domains of QoL. Living with the ill brother or sister resulted in less satisfaction in the social domain. Multivariate analysis showed that female gender was a significant factor in explaining the impact of illness-related variables on QoL, particularly suicide attempts.

CONCLUSION

Suicide attempts and a history of violence impacted negatively on all four domains of QoL. Female siblings are at higher risk of reduced QoL and may be particularly vulnerable to the effects of suicide attempts and violence. These findings have significant implications for early, targeted interventions for this vulnerable group.

Firearms regulation, violence and the mentally ill: a contemporary Antipodean appraisal

As recent cases of mass murder at Utoya Island in Norway, and in the United States (US) at Virginia Tech, Virginia; Tucson, Arizona; Aurora, Colorado; and Newtown, Connecticut all illustrate, acts of extreme violence involving high powered weapons and committed by persons with a presumed or confirmed mental illness tend to arouse intense public and political debates about the efficacy of firearm regulation and control. Following these tragedies, in the US at least, various law reform measures have been proposed and in some cases implemented designed principally to make it more difficult for mentally ill persons to gain access to firearms. In this article it is contended that measures like these are at best tinkering with the margins of gun control and also have the tendency to reinforce the stigma and discrimination experienced by persons with a mental illness, while perpetuating stereotypes of them as dangerous to themselves and others. Despite these limitations, and while firearm regulation policies and practices vary widely across the globe, most nations still seek in some way to limit access to guns by persons with a mental illness. This article explores in more detail how such policies and practices have been applied in the Australian State of New South Wales and the lessons to be learned elsewhere from this experience.

An investigation of duration of untreated psychosis and the affecting factors

One of the main goals in treatment planning of psychiatric disorders is early diagnosis of patients in the early psychosis period so that duration of untreated psychosis (DUP) is decreased and the treatment response and outcome is improved. The aim of this study was to investigate the DUP of psychosis and factors affecting it. In this cross-sectional study, 80 patients from the psychiatric clinic of Fatemi hospital in Ardabil and Razi hospital in Tabriz who were in the first episode of psychosis completed a questionnaire. The data were analysed by SPSS statistical software. In this study, the mean DUP measured from the appearance of the first symptoms of psychosis were 261.3 ± 110.8 and 212.5 ± 143.5 days for patients referring to Razi and Fatemi hospital, respectively. About 65% of the patients in Fatemi hospital and 32.5% of them in Razi hospital considered visiting a psychiatrist as hard and very hard. The DUP mean here was found to be higher as compared with that of the developed countries. The following factors were found to be playing a role in making DUP longer: lower education, implausible beliefs and culturally rooted social stigma status of visiting a psychiatrist.

A systematic review and meta-regression analysis of aggression during the first episode of psychosis

OBJECTIVE

The First Episode of Psychosis (FEP) represents a period of heightened risk for aggression. However, it is not known whether this risk is significantly altered following contact with mental health services.

METHOD

Meta-analytic methods were used to estimate pooled prevalence of 'any' and 'serious' aggression during FEP, while meta-regression analyses were conducted to explore reasons for heterogeneity between studies.

RESULTS

Fifteen studies comprising 3, 294 FEP subjects were analysed. Pooled prevalence of 'any aggression' before service contact was 28% (95% CI: 22-34) and following contact 31% (95% CI: 20-42). Pooled prevalence of 'serious aggression' was 16% (95% CI: 11-20) before service contact and 13% (95% CI: 6-20) following contact. Four studies reporting repeated assessments within the same cohort revealed that aggression rates did not significantly differ post and pre service contact: Odds Ratios for any aggression: 1.18 (95% CI: 0.46-2.99) and serious aggression: 0.61 (95% CI: 0.31-1.21).

CONCLUSION

Rates of aggression are high during FEP, both before and following initial service contact, and seem not to alter following contact. This conclusion remains tentative due to considerable heterogeneity between studies and a lack of prospective cohort studies.

[Homicide, schizophrenia and substance abuse: a complex interaction]

BACKGROUND AND AIM

The prevalence of homicide perpetrators with a diagnosis of schizophrenia is 6% in Western countries populations. The relationship between schizophrenia and homicide is complex and cannot be reduced to a simple causal link. The aim of this systematic review was to clarify the role of substance abuse in the commission of murder in people suffering from schizophrenia.

METHODS

A systematic English-French Medline and EMBASE literature search of cohort studies, case-control studies and transversal studies published between January 2001 and December 2011 was performed, combining the MeSH terms "schizophrenia", "psychotic disorders", "homicide", "violence", "substance use disorder", and the TIAB term "alcohol". Abstract selection was based on the STROBE and PRISMA checklist for observational studies and systematic and meta-analysis studies, respectively.

RESULTS

Of the 471 selected studies, eight prospective studies and six systematic reviews and meta-analysis studies met the selection criteria and were included in the final analysis. Homicide committed by a schizophrenic person is associated with socio-demographic (young age, male gender, low socioeconomic status), historical (history of violence against others), contextual (a stressful event in the year prior to the homicide), and clinical risk factors (severe psychotic symptoms, long duration of untreated psychosis, poor adherence to medication). In comparison to the general population, the risk of homicide is increased 8-fold in schizophrenics with a substance abuse disorder (mainly alcohol abuse) and 2-fold in schizophrenics without any comorbidities. A co-diagnosis of substance abuse allows us to divide the violent schizophrenics into "early-starters" and "late-starters" according to the age of onset of their antisocial and violent behavior. The violence of the "early-starters" is unplanned, usually affects an acquaintance and is not necessarily associated with the schizophrenic symptoms. Substance abuse is frequent and plays an important role in the homicide commission. In addition, the risk of reoffending is high. In the "late-starters", the violence is linked to the psychotic symptoms and is directed to a member of the family. The reoffence risk is low and it depends on the pursuit of care or not.

CONCLUSION

Defining subgroups of violent schizophrenic patients would avoid stigmatization and would help to prevent the risk of homicide by offering a multidisciplinary care which would take into account any substance abuse.

Violence in childhood-onset schizophrenia

Violence is elevated in older adolescents and adults with schizophrenia; however, little is known about younger children. This report focuses on rates of violence in younger children with schizophrenic-spectrum illnesses. A retrospective review of structured diagnostic interviews from a case series of 81 children, ages 4-15 years of age, with childhood onset of schizophrenic-spectrum illness is reported. Seventy-two percent of children had a history of violent behavior, including 25 children (31%) with a history of severe violence. Of those with a history of violence, 60% had a least one episode of violence that did not appear to be in response to an external stimulus (internally driven violence). There was no significant impact of age or gender. For many children, these internally driven violent episodes were rare and unpredictable, but severe. Similar to what is found in adolescents and adults, violence is common in children with schizophrenic-spectrum illnesses. General violence prevention strategies combined with early identification and treatment of childhood psychotic illnesses may decrease the morbidity associated with childhood psychotic violence.

Managing risks of violence in a youth mental health service: a service model description

AIM

There is a significant relationship between experiencing a severe mental illness, particularly psychosis, and exhibiting violent or offending behaviour. Reducing, if not preventing, the risks of violence among patients of mental health services is clinically warranted, but models to address this are limited.

METHODS

We provide a rationale for, and service description of, a pilot forensic satellite clinic embedded within an early intervention service for patients with emerging psychosis, mood disorder and/or personality disorders. The core elements of the programme and its implementation are described, and demographic, clinical and risk data are presented for the patients assessed during the clinic's pilot phase.

RESULTS

A total of 54 patients were referred, 45 of whom were subsequently assessed via primary or secondary consultation. The majority of patients were male, with psychosis (40%) or major depressive disorder (31%) as the most common diagnoses. Illicit substance use in the sample was common, as was previous aggression (81%) and prior criminal offences (51%). Most referrals related to assessing and managing violent behaviour (64%) and violent/homicidal ideation (38%). On the basis of the risk assessments, 71% of patients were rated as medium to high risk of offending.

CONCLUSION

Assessing and managing risks of violent offending among young patients are both clinically indicated for a proportion of patients and feasible via a forensic outreach model. Given the proliferation of early psychosis services worldwide, the issue of managing, and ideally preventing, patient risk of violence will almost certainly have wide application. However, a comprehensive evaluation of this model is required to ultimately determine the effectiveness of this approach for improving patient outcomes.

Civil commitment law, mental health services, and US homicide rates

PURPOSE

The study considers whether involuntary civil comment (ICC) statute provisions are associated with homicide rates. Do statutes based solely upon dangerousness criteria versus broader ICC-criteria-i.e. "need for treatment," "protection of health and safety," and family protection-have differential associations related to their goal of reducing the frequency of homicide?

METHOD

State-level data were obtained from online data bases and key-informant surveys. Ordinary-least-squares and Poisson regression were used to evaluate the association between statute characteristics, mental health system characteristics, and 2004 Homicide Rates after controlling for firearm-control-law restrictiveness and social-economic-demographic-geographic-and-political indicators historically related to homicide rate variation.

RESULTS

Poisson and OLS models, respectively, were significant: likelihood ratio χ(2) = 108.47, df = 10; p < 0.000 and Adj. R (2) = 0.72; df = 10, 25; F = 10.21; p < 0.000. Poisson results indicate that social-economic-demographic-geographic-and-political-indicators had the strongest association with state homicide rates (p < 0.000). Lower rates were associated with: broader ICC-criteria (p ≤ 0.01), fewer inpatient-bed access problems (p ≤ 0.03), and better mental health system ratings (p ≤ 0.04). OLS results indicate that social-economic-demographic-geographic-and-political indicators accounted for 25% of homicide rate variation. Broader ICC-criteria were associated with 1.42 less homicides per 100,000. Less access to psychiatric inpatient-beds and more poorly rated mental health systems were associated with increases in the homicide rates of 1.08 and 0.26 per 100,000, respectively.

CONCLUSIONS

While social-economic-demographic-geographic-and-political indicators show the strongest association with homicide rate variation, the results show the importance and potentially preventive utility of broader ICC criteria, increased psychiatric inpatient-bed access, and better performing mental health systems as factors contributing to homicide rate variation.

Pathways to forensic mental health care in Toronto: a comparison of European, African-Caribbean, and other ethnoracial groups in Toronto

OBJECTIVE

To describe pathways taken to care by a sample of patients in a secure forensic unit who have been found not criminally responsible or unfit to stand trial, and to investigate the pathways taken by patients within 3 ethnoracial subgroups of origin: European, African or Caribbean, and Other.

METHOD

Fifty patients from secure forensic units were interviewed using the Encounter Form developed for pathways mapping undertaken in the World Health Organization field trials. Differences in the types of caregivers seen, the total number of caregivers seen, and the time taken to reach forensic psychiatric services were compared across the 3 ethnoracial groupings.

RESULTS

Most people committed their index offence after they had already had contact with general mental health services. Few significant differences were observed in the pathways to secure forensic units across the European, African-Caribbean, and Other ethnoracial groups.

CONCLUSIONS

These findings suggest that improvements in general mental health services may be a key to decreasing the use of forensic psychiatric services. Further research is required to explore factors that may predict and prevent offending. Larger studies are needed to examine ethnoracial differences in pathways to care.

Ethnic differences in risk of acute compulsory admission in Amsterdam, 1996-2005

PURPOSE

Several European studies have shown that migrants from non-western countries are at increased risk of psychotic disorders. This study examines how this is reflected in the risk of acute compulsory admission (ACA).

METHODS

Information on all patients with an ACA in Amsterdam from 1996 to 2005 was linked to the Amsterdam municipal register.

RESULTS

The incidence of first ACA in Amsterdam was 4.5 per 10,000 person years. The incidence risk of ACA for any psychiatric disorders and for psychotic disorders in particular showed a 2- to 3-fold increase in almost all migrant groups from non-western countries, and especially for second-generation migrants. In addition, all non-western migrant groups were at increased risk of being assessed as posing a danger to others.

CONCLUSIONS

The relative risk of ACA for psychotic disorders was similar to that for the incidence of psychotic disorders in most ethnic groups from other studies, suggesting that the increased risk of ACA in non-western migrants can mainly be explained by the increased incidence of psychotic disorders in these groups. However, the relative risk of ACA for psychotic disorders among Moroccan migrants was lower than expected on the basis of incidence studies, which suggests that additional factors are relevant, such as illness-related expression and access to and quality of care.

Severe non-lethal violence during psychotic illness

BACKGROUND

Research about violence in psychosis has mainly considered homicide by people with mental disorder, especially schizophrenia, and violence in groups of psychiatric patients. In this study we examine the characteristics of a sample of offenders with psychotic illness who committed severe non-lethal violent offences.

METHOD

A review of court documents from a consecutive series of cases involving violence resulting in significant injury concluded in the District Court of New South Wales, Australia, in the years 2006 and 2007.

RESULTS

Of 661 people found to have committed a severe violent offence, 74 (11%, 95% confidence interval (CI) 9-14%) had a diagnosed psychotic illness. Of these, 16 (22%, 95% CI 12-31%) had never received treatment with antipsychotic medication and could be regarded as being in the first episode of psychosis. Offenders with psychosis were typically non-adherent to treatment, had co-morbid substance use and prior criminal convictions. Positive symptoms of psychotic illness such as hallucinations and delusional beliefs were reported to be present at the time of the offence in most of the cases. Seven of 74 (10%) psychotic offenders were found not guilty on the grounds of mental illness.

CONCLUSIONS

People with psychotic illness are over-represented among those who commit violent offences resulting in significant injury, confirming the presence of an association between psychosis and severe non-lethal violence. Earlier treatment of first episode psychosis, improving the adherence to treatment of known patients and treatment of co-morbid substance abuse could reduce the incidence of severe violence committed by patients with psychosis.

Homicide of strangers by people with a psychotic illness

BACKGROUND

The homicide of strangers by people with psychosis, referred to here as "stranger homicides," are rare and tragic events that generate adverse publicity for mental health services and have resulted in significant changes in mental health policy and law.

AIM

To estimate the incidence of stranger homicides, using data from previously published studies, and to compare the characteristics of psychotic offenders who killed strangers with the characteristics of those who killed a close relative.

METHOD

Meta-analysis of the population-based studies of homicide by persons suffering from a psychosis in which the number of subjects who killed strangers was also reported. Characteristics of stranger homicide and family homicide offenders were examined in a multicenter case-control study of homicide during psychotic illness in four high-income countries.

RESULTS

A pooled estimate of 1 stranger homicide per 14.3 million people per year (95% confidence interval, 1 in 18.9 million to 1 in 11.5 million people per year) was calculated by meta-analysis of 7 studies. The characteristics of the 42 stranger homicide offenders from New South Wales [NSW], Quebec and Eastern Ontario, Finland, and the Netherlands were identified. Twenty seven (64%) of these had never previously received treatment with antipsychotic medication. The stranger homicide offenders were more likely to be homeless, have exhibited antisocial conduct, and had fewer negative symptoms than those who killed family members. The victims of stranger homicide were mostly adult males and the homicides rarely occurred in the victim's home or workplace.

CONCLUSIONS

Stranger homicide in psychosis is extremely rare and is even rarer for a patient who has received treatment with antipsychotic medication. A lack of distinguishing characteristics of stranger homicide offenders and an extremely low base rate of stranger-homicide suggests that risk assessment of patients known to have a psychotic illness will be of little assistance in the prevention of stranger homicides.

Violence in first-episode psychosis: a systematic review and meta-analysis

BACKGROUND

Violence towards others is a recognised complication of first-episode psychosis.

AIMS

To estimate the rate of violence and the associations with violence in first-episode psychosis.

METHOD

A systematic review and meta-analysis of 9 studies.

RESULTS

Pooled estimates of the proportion of patients with first-episode psychosis committing any violence, serious violence and severe violence were 34.5%, 16.6% and 0.6%, respectively. Violence of any severity was associated with involuntary treatment (OR=3.84), a forensic history (OR=3.28), hostile affect (OR=3.52), symptoms of mania (OR=2.86), illicit substance use (OR=2.33), lower levels of education (OR=1.99), younger age (OR=1.85), male sex (OR =1.61) and the duration of untreated psychosis (OR=1.56). Serious violence was associated with a forensic history (OR=4.42), the duration of untreated psychosis (OR=2.76) and total symptom scores (OR=2.05). Violence in the period after initiation of treatment for first-episode psychosis was associated with involuntary treatment (OR=5.71).

CONCLUSIONS

A substantial proportion of patients in first-episode psychosis commit an act of violence before presenting for treatment, including a number who commit an act of more serious violence causing injury to another person. However, severe violence resulting in serious or permanent injury to the victim is uncommon in this population.

Rates of homicide during the first episode of psychosis and after treatment: a systematic review and meta-analysis

The observation that almost half of the homicides committed by people with a psychotic illness occur before initial treatment suggests an increased risk of homicide during the first episode of psychosis. The aim of this study was to estimate the rates of homicide during the first episode of psychosis and after treatment. A systematic search located 10 studies that reported details of all the homicide offenders with a psychotic illness within a known population during a specified period and reported the number of people who had received treatment prior to the offense. Meta-analysis of these studies showed that 38.5% (95% confidence interval [CI] = 31.1%-46.5%) of homicides occurred during the first episode of psychosis, prior to initial treatment. Homicides during first-episode psychosis occurred at a rate of 1.59 homicides per 1000 (95% CI = 1.06-2.40), equivalent to 1 in 629 presentations. The annual rate of homicide after treatment for psychosis was 0.11 homicides per 1000 patients (95% CI = 0.07-0.16), equivalent to 1 homicide in 9090 patients with schizophrenia per year. The rate ratio of homicide in the first episode of psychosis in these studies was 15.5 (95% CI = 11.0-21.7) times the annual rate of homicide after treatment for psychosis. Hence, the rate of homicide in the first episode of psychosis appears to be higher than previously recognized, whereas the annual rate of homicide by patients with schizophrenia after treatment is lower than previous estimates. Earlier treatment of first-episode psychosis might prevent some homicides.

Clinical and cognitive associations with aggression in the first episode of psychosis

OBJECTIVE

Although there may be an increased risk of aggression in first-episode psychosis, little is known about the clinical and cognitive associations of serious and less serious aggression during this phase of psychotic illness.

METHODS

Eighty-five patients in the first episode of psychosis under the age of 26 underwent comprehensive clinical assessment and cognitive testing. Aggression was assessed using a purpose-designed rating scale based on corroborative interviews to record 10 types of aggressive behaviour in the 3 months before presenting for treatment.

RESULTS

Thirty-seven of 85 patients (43.5%) exhibited physically aggressive behaviour and 23 patients (27.1%) had assaulted another person or used a weapon. Young age and elevated scores in the mania rating scale were associated with a history of any type of aggression. Serious aggression was associated with regular cannabis use and more errors of commission on a continuous performance task.

CONCLUSIONS

The clinical features associated with less serious aggression were different to those associated with more serious forms of aggression. Serious aggression is associated with regular cannabis use and also reduced behavioural inhibition. Awareness of substance use and neurocognitive deficits may assist in the identification of potentially violent patients.

Major self-mutilation in the first episode of psychosis

Major self-mutilation (MSM) is a rare but catastrophic complication of severe mental illness. Most people who inflict MSM have a psychotic disorder, usually a schizophrenia spectrum psychosis. It is not known when in the course of psychotic illness, MSM is most likely to occur. In this study, the proportion of patients in first episode of psychosis (FEP) was assessed using the results of a systematic review of published case reports. Histories of patients who had removed an eye or a testicle, severed their penis, or amputated a portion of a limb and were diagnosed with a schizophrenia spectrum psychosis were included. A psychotic illness was documented in 143 of 189 cases (75.6%) of MSM, of whom 119 of 143 (83.2%) were diagnosed with a schizophrenia spectrum psychosis. The treatment status of a schizophrenia spectrum psychosis could be ascertained in 101 of the case reports, of which 54 were in the FEP (53.5%, 95% confidence interval = 43.7%-63.2%). Patients who inflict MSM in FEP exhibited similar symptoms to those who inflict MSM later in their illness. Acute psychosis, in particular first-episode schizophrenia, appears to be the major cause of MSM. Although MSM is extremely uncommon, earlier treatment of psychotic illness may reduce the incidence of MSM.

Did the introduction of 'dangerousness' and 'risk of harm' criteria in mental health laws increase the incidence of suicide in the United States of America?

INTRODUCTION

Mental health laws limiting involuntary admission to psychiatric hospitals to those assessed to be dangerous or at risk of harm to themselves or others (obligatory dangerousness criteria, ODC) have been introduced in almost every jurisdiction in the United States of America. Some mentally ill patients, who might have been admitted for treatment under previous laws, but who were not admitted because they were not considered 'dangerous', could subsequently have committed suicide. In order to investigate whether or not suicide rates increased after the introduction of ODC, we examined suicide statistics from 48 states and the District of Columbia.

METHODS

We aligned suicide statistics according to the year in which ODC were introduced in each jurisdiction. We then examined suicide rates in the 15 years before and after the introduction of ODC and trends in national and state suicide rates between 1960 and 1990. Meta-analysis was used to examine differences in suicide rates in the year immediately before and in the year immediately after the introduction of ODC.

RESULTS

Between 1968 and 1977, the decade in which ODC were introduced in the majority of jurisdictions, national suicide rates increased from under 11 per 100,000 per annum to over 12.5 per 100,000 per annum. The increase in many jurisdictions occurred in the years immediately before the introduction of ODC. The introduction of ODC was associated with a non-significant increase in suicide rates in the 49 jurisdictions. There was a significant increase in suicide rates after the introduction of ODC in the 19 jurisdictions that introduced ODC prior to 1976.

CONCLUSIONS

The introduction of ODC might have contributed to increased suicide rates prior to 1976. However, a simpler explanation for the finding is that national suicide rates were rising for other reasons in the same period. We did not find an increase in suicide rates in the jurisdictions where ODC mental health laws were introduced after 1976. Hence, the findings of this study do not support the conclusion that ODC laws have a measurable impact on suicide rates.

The relationship between the rate of homicide by those with schizophrenia and the overall homicide rate: a systematic review and meta-analysis

BACKGROUND

It is widely believed that the rate of homicide by the mentally ill is fixed, differs little between regions and is unrelated to the total homicide rate.

METHODS

We conducted a systematic review and meta-analysis of population-based studies conducted in developed countries of homicide committed by persons diagnosed with schizophrenia.

FINDINGS

We found that rates of homicide by people diagnosed with schizophrenia were strongly correlated with total homicide rates (R=0.868, two tailed, P<0.001). Using meta-analysis, a pooled proportion of 6.48% of all homicide offenders had a diagnosis of schizophrenia (95% confidence intervals [CI]=5.56%-7.54%). Rates of other homicides did not contribute to the heterogeneity in the proportion of homicides committed by those with schizophrenia (slope=-0.055, P=0.662).

CONCLUSIONS

Homicide rates by people with schizophrenia are associated with rates of all homicides. It is therefore likely that both types of homicide have some common etiological factors. Accordingly, measures to reduce the likelihood of a person committing homicide during a psychotic illness should not only attempt to optimise treatment, but include attention to those factors associated with an increased risk of all homicides, such as improving the social circumstances of disadvantaged patients, treating substance abuse and reducing access to weapons.

Measurement and reporting of the duration of untreated psychosis

AIM

The aim of this study was to investigate the demographic, illness and methodological factors associated with mean and median duration of untreated psychosis (DUP).

METHODS

A systematic review and meta-analysis of the published studies of DUP and an examination of available DUP distributions.

RESULTS

DUP was longer in samples with a higher proportion of patients with schizophrenia and was shorter in samples that included affective psychosis. Sex, age, and the methods of measuring the onset and end-point of DUP and the type of service in which the studies were performed did not contribute to the heterogeneity of the mean or median DUP values. Mean DUP is significantly prolonged by a small number of patients, and the median DUP is a poor indicator of the rate at which patients present.

CONCLUSIONS

The DUP of patients with affective and non-affective psychosis should be examined separately in order to make measures of DUP more meaningful and comparable, and DUP should be reported using more comprehensive measures. We suggest a method of reporting DUP based on the rate of presentation of first-episode psychosis patients rather than the length of DUP.

Relationship between gross domestic product and duration of untreated psychosis in low- and middle-income countries

BACKGROUND

The duration of untreated psychosis (DUP), the period between the first onset of psychotic symptoms and treatment, has an important influence on the outcome of schizophrenia.

AIMS

To compare the published studies of DUP in low- and middle-income (LAMI) countries with the DUP of high-income countries, and examine a possible association between DUP and per capita income.

METHOD

We used six search strategies to locate studies of the DUP from LAMI countries published between January 1975 and January 2008. We then examined the relationship between DUP and measures of economic activity, which was assessed using the LAMI classification of countries and gross domestic product (GDP) purchasing power parity.

RESULTS

The average mean DUP in studies from LAMI countries was 125.0 weeks compared with 63.4 weeks in studies from high-income countries (P=0.012). Within the studies from LAMI countries, mean DUP fell by 6 weeks for every $1000 of GDP purchasing power parity.

CONCLUSIONS

There appears to be an inverse relationship between income and DUP in LAMI countries. The cost of treatment is an impediment to care and subsidised antipsychotic medication would improve the access to treatment and the outcome of psychotic illness in LAMI countries.

Homicide due to mental disorder in England and Wales over 50 years

BACKGROUND

It has been stated that rates of homicide due to mental disorder are constant over time.

AIMS

To examine whether there were changes in the rates of homicide due to mental disorder over time, and whether changes in these rates were associated with changes in the rates of other homicides in England and Wales.

METHOD

Examination of four sets of official homicide statistics from England and Wales from 1946 to 2004.

RESULTS

The rate of total homicide and the rate of homicide due to mental disorder rose steadily until the mid-1970s. From then there was a reversal in the rate of homicides attributed to mental disorder, which declined to historically low levels, while other homicides continued to rise.

CONCLUSIONS

The reasons for the rise and fall in homicides attributed to mental disorder are not clear. The earlier increase in such homicides may have been due to the same sociological factors that caused the increase in other homicides over that time. The subsequent decline may have been due to improvements in psychiatric treatments and service organisation. Another possibility is that there has been an informal change to the legal tests for the finding of homicide due to mental disorder.

Perceptions about the cause of schizophrenia and the subsequent help seeking behavior in a Pakistani population - results of a cross-sectional survey

BACKGROUND

There is a cultural variability around the perception of what causes the syndrome of schizophrenia. Generally patients with schizophrenia are considered dangerous. They are isolated and treatment is delayed. Studies have shown favorable prognosis with good family and social support, early diagnosis and management. Duration of untreated psychosis is a bad prognostic indicator. We aimed to determine the perceptions regarding the etiology of schizophrenia and the subsequent help seeking behavior.

METHODS

This cross-sectional study was carried out on a sample of 404 people at the out patient departments of Aga Khan University Hospital Karachi. Data was collected via a self-administered questionnaire. Questions were related to a vignette of a young man displaying schizophrenic behavior. Data was analyzed on SPSS v 14.

RESULTS

The mean age of the participants was 31.4 years (range = 18-72) and 77% of them were males. The majorities were graduates (61.9%) and employed (50%). Only 30% of the participants attributed 'mental illness' as the main cause of psychotic symptoms while a large number thought of 'God's will' (32.3%), 'superstitious ideas' (33.1%), 'loneliness' (24.8%) and 'unemployment' (19.3%) as the main cause. Mental illness as the single most important cause was reported by only 22%. As far as management is concerned, only 40% reported psychiatric consultation to be the single most important management step. Other responses included spiritual healing (19.5%) and Sociachanges (10.6) while 14.8% of respondents said that they would do nothing. Gender, age, family system and education level were significantly associated with the beliefs about the cause of schizophrenia (p < 0.05). While these variables plus 'religious inclination' and 'beliefs about cause' were significantly associated with the help seeking behavior of the participants.

CONCLUSION

Despite majority of the study population being well educated, only a few recognized schizophrenia as a mental illness and many held superstitious beliefs. A vast majority of Pakistanis have non-biomedical beliefs about the cause of schizophrenia. Their help seeking behavior in this regard is inappropriate and detrimental to the health of schizophrenic patients. Areas for future research have been identified.

Mental health laws that require dangerousness for involuntary admission may delay the initial treatment of schizophrenia

INTRODUCTION

A long duration of untreated psychosis (DUP) is associated with a worse prognosis, an increased risk of suicide and may be linked to serious violence. Mental health laws that require patients to be dangerous to themselves or to others before they can receive involuntary psychiatric treatment may make it more difficult to treat patients in their first episode of psychosis.

METHODS

The mean and median DUP reported in studies of schizophrenia related psychoses were examined. A comparison was made between the DUP reported from jurisdictions that had an obligatory dangerousness criterion (ODC) and those with other criteria for involuntary treatment.

RESULTS

The average mean DUP in samples from jurisdictions with an ODC was 79.5 weeks, but was only 55.6 weeks in those jurisdictions that did not have an ODC (P < 0.007).

CONCLUSIONS

Mental health laws that require the patient to be assessed as dangerous before they can receive involuntary treatment are associated with significantly longer DUP. As reducing DUP is an intervention that can improve the prognosis of schizophrenia, this finding suggests that mental health laws should be amended to allow treatment on grounds other than dangerousness, at least in the crucial first episode of psychosis.