Fresán A, Apiquian R, de la Fuente-Sandoval C, García-Anaya M, Nicolini H
Subdirección de Investigaciones Clínicas, Instituto Nacional de Psiquitría Ramón de la Fuente, Mexico.
Actas Esp Psiquiatr. 2004 Mar-Apr;32(2):71-5.
Research focused on the assessment of violent behavior in schizophrenic patients has been hindered by the lack of clinical instruments adapted to the Mexican psychiatric population. This study aimed to obtain sensitivity and specificity data as well as the most adequate cutoff point of the Overt Aggression Scale (OAS).
137 schizophrenic patients were included. A clinical evaluation was performed with the PANSS subscale of excitability and the OAS. Diagnosis of violent behavior was obtained with the PANSS and clinical consensus of two psychiatrists.
66.4% of the sample was considered as nonviolent patients. A cutoff point of 7 points in the OAS showed sensitivity of 0.80 and specificity of 0.97, with adequate positive and negative predictive power.
The objective assessment of violent behavior in schizophrenic patients can contribute to the development of new lines of research. Adaptation of the OAS for the assessment of violent behavior will encourage the development of better strategies for the detection and intervention of violent behavior in schizophrenia.
由于缺乏适用于墨西哥精神病患者群体的临床工具，针对精神分裂症患者暴力行为评估的研究受到了阻碍。本研究旨在获取外显攻击量表（OAS）的敏感性和特异性数据以及最合适的临界值。
纳入137名精神分裂症患者。使用PANSS兴奋性分量表和OAS进行临床评估。通过PANSS和两位精神科医生的临床共识得出暴力行为的诊断。
66.4%的样本被视为非暴力患者。OAS的临界值为7分时，敏感性为0.80，特异性为0.97，具有足够的阳性和阴性预测能力。
对精神分裂症患者暴力行为的客观评估有助于新研究方向的发展。改编OAS用于暴力行为评估将促进制定更好的策略来检测和干预精神分裂症中的暴力行为。
