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Steadman HJ Silver E Monahan J Appelbaum PS Robbins PC Mulvey EP Grisso T Roth LH Banks S 《Law and human behavior》2000,24(1):83-100
Since the 1970s, a wide body of research has suggested that the accuracy of clinical risk assessments of violence might be increased if clinicians used actuarial tools. Despite considerable progress in recent years in the development of such tools for violence risk assessment, they remain primarily research instruments, largely ignored in daily clinical practice. We argue that because most existing actuarial tools are based on a main effects regression approach, they do not adequately reflect the contingent nature of the clinical assessment processes. To enhance the use of actuarial violence risk assessment tools, we propose a classification tree rather than a main effects regression approach. In addition, we suggest that by employing two decision thresholds for identifying high- and low-risk cases--instead of the standard single threshold--the use of actuarial tools to make dichotomous risk classification decisions may be further enhanced. These claims are supported with empirical data from the MacArthur Violence Risk Assessment Study. 相似文献
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Recent studies have reported comparable rates of violence among men and women with mental disorder, raising important issues for clinical risk assessment. This study examines the relationship between gender and violence using data from the MacArthur Violence Risk Assessment Study. Patients in acute psychiatric wards were interviewed 5 times over the year following their discharge to the community. Results showed some differences between men and women in the violence committed immediately following discharge, with rates for men being higher. But the prevalence of violence over the 1 year was similar for female and male discharged patients. However, there were substantial gender differences in the situational context of the violence committed. Men were more likely to have been drinking or using street drugs, and less likely to have been adhering to prescribed psychotropic medication, prior to committing violence. The violence committed by men was more likely to result in serious injury than the violence committed by women, and men were more likely than women to be arrested after committing a violent act. Women were more likely to target family members and to be violent in the home. 相似文献
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建立生物试样中常见巴比妥类药物的固相提取和柱上衍生化GC/MS分析法。将预制的血或肝分别在pH6.0和pH2.2的条件下过预活化的GDX-403吸附小柱,再用缓冲浪和蒸馏水各4ml顺序洗柱。最后用4ml丙酮/氯仿(1:1)溶剂洗脱样品,离心弃除水相,80℃挥至近干,用50μl乙醇定溶、取净化的样品2~4μl挥至近干,加20μl0.2molTMAH衍生化试剂,直接进样0.5μl,柱上衍生化GC/MS(GC)分析。在试验条件下,当血和肝分别添加2.0μg和5.0μg混合药物,回收率≥80%,相对标准差(RSD)优于±10%,检测限优于5ng(信/噪比≥2)。该法能有效地排除类脂物和组胺的干扰,可用于治疗量级药物分析和婴幼儿中毒案检验。 相似文献
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