Richard A. Van Dorn

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PURPOSE A general consensus exists that severe mental illness (SMI) increases violence risk. However, a recent report claimed that SMI "alone was not statistically related to future violence in bivariate or multivariate analyses." We reanalyze the data used to make this claim with a focus on causal relationships between SMI and violence, rather than the(More)
Psychiatric advance directives (PADs) are legal instruments that allow competent persons to document their preferences regarding future mental health treatment and to designate a surrogate decisionmaker in the event they lose capacity to make reliable treatment decisions during an acute episode of psychiatric illness. This study reports the findings of a(More)
CONTEXT Violent behavior is uncommon, yet problematic, among schizophrenia patients. The complex effects of clinical, interpersonal, and social-environmental risk factors for violence in this population are poorly understood. OBJECTIVE To examine the prevalence and correlates of violence among schizophrenia patients living in the community by developing(More)
The Clinical Antipsychotic Trials of Intervention Effectiveness (CATIE) obtained a sample of 1493 chronic schizophrenia patients. The European First Episode Schizophrenia Trial (EUFEST) studied a sample of 498 patients. We have combined these two samples to study the predictors and correlates of adherence to treatment. Here we report on adherence to(More)
OBJECTIVE Studies show a high potential demand for psychiatric advance directives but low completion rates. The authors conducted a randomized study of a structured, manualized intervention to facilitate completion of psychiatric advance directives. METHOD A total of 469 patients with severe mental illness were randomly assigned to a facilitated(More)
BACKGROUND Violence is an uncommon but significant problem associated with schizophrenia. AIMS To compare antipsychotic medications in reducing violence among patients with schizophrenia over 6 months, identify prospective predictors of violence and examine the impact of medication adherence on reduced violence. METHOD Participants (n=1445) were(More)
BACKGROUND Previous reviews on risk and protective factors for violence in psychosis have produced contrasting findings. There is therefore a need to clarify the direction and strength of association of risk and protective factors for violent outcomes in individuals with psychosis. METHOD We conducted a systematic review and meta-analysis using 6(More)
We conducted a meta-analysis of studies examining the association between the Val158Met COMT polymorphism and violence against others in schizophrenia. A systematic search current to November 1, 2011 was conducted using MEDLINE, EMBASE, CINAHL, PsycINFO, ProQuest, and the National Criminal Justice Reference Service and identified 15 studies comprising 2,370(More)
BACKGROUND Research has uncovered many characteristics related to violence committed by people with mental illness. However, relatively few studies have focused on understanding the connection between violence and dynamic, malleable variables such as a patient's level of treatment engagement. AIMS To explore the link between community violence and(More)
OBJECTIVE This study prospectively examined the effectiveness of treatment with olanzapine versus risperidone in reducing violent behavior among patients with schizophrenia under "usual care" conditions in the community. METHOD Participants were 124 adults with DSM-IV-diagnosed schizophrenia-spectrum disorders receiving services in public-sector mental(More)