Amaral do Espirito Santo Helena Maria, Pio-Abreu José Luís
Instituto Superior Miguel Torga, Coimbra, Portugal.
Braz J Psychiatry. 2007 Dec;29(4):354-8. doi: 10.1590/s1516-44462006005000039. Epub 2008 Jan 8.
The Somatoform Dissociation Questionnaire is a self-report questionnaire that has proven to be a reliable and valid instrument. The objectives of this study were to validate the Portuguese version and to determine its capability to distinguish patients with dissociative disorders from others with psychopathological disorders.
234 patients answered the translated version of Somatoform Dissociation Questionnaire. The Portuguese Dissociative Disorders Interview Schedule was used to validate clinical diagnosis. Patients with dissociative disorder (n = 113) were compared to a control group of 121 patients with various anxiety and depression disorders.
Reliability measured by Cronbach's a was 0.88. The best performance of the Portuguese form was at a cut-off point of 35, which distinguishes between dissociative disorder and neurotic disorders with a good diagnostic efficacy (sensitivity = 0.73). The somatoform dissociation was significantly more frequent in dissociative disorder patients, conversion disorder patients and post-traumatic stress disorder patients.
These findings suggest that dissociative disorders can be differentiated from other psychiatric disorders through somatoform dissociation. The Portuguese version of the Somatoform Dissociation Questionnaire has fine psychometric features that sustain its cross-cultural validity.
躯体形式解离问卷是一种自陈式问卷，已被证明是一种可靠且有效的工具。本研究的目的是验证葡萄牙语版本，并确定其区分解离性障碍患者与其他精神病理障碍患者的能力。
234名患者回答了躯体形式解离问卷的翻译版本。使用葡萄牙语解离性障碍访谈量表来验证临床诊断。将解离性障碍患者（n = 113）与121名患有各种焦虑和抑郁障碍的对照组患者进行比较。
用克朗巴哈系数测量的信度为0.88。葡萄牙语版本的最佳表现是在35分的分界点，该分界点能以良好的诊断效能区分解离性障碍和神经症性障碍（敏感性 = 0.73）。躯体形式解离在解离性障碍患者、转换障碍患者和创伤后应激障碍患者中明显更常见。
这些发现表明，解离性障碍可以通过躯体形式解离与其他精神障碍相区分。躯体形式解离问卷的葡萄牙语版本具有良好的心理测量学特征，支持其跨文化效度。
