Department of Psychology, Eastern Michigan University, Ypsilanti, MI 48197, USA.
Psychopathology. 2011;44(5):303-13. doi: 10.1159/000323608. Epub 2011 Jun 9.
In the history of the DSM, two disorders have been proposed for consideration that shared much in common - self-defeating personality disorder (SDPD) and depressive personality disorder (DPD). In a previous paper, it was reported that SDPD (n = 34) and DPD (n = 240) shared a diagnostic overlap of 70%. It was concluded that SDPD could not be empirically supported as a diagnostic category. In this paper, the overlap of the two disorders was explored further in this same sample (n = 1,200) of psychiatric outpatients. We found that symptoms of the two disorders were positively correlated. Confirmatory factor analysis (CFA) provided strong support for a model with two distinct, but very highly correlated constructs. Based on the hypothesis that SDPD and DPD are separate but related, a second-order CFA factor was fit to the data to further examine the strong association between the two disorders. Taken collectively, it is concluded that DPD and SDPD are components of the same construct, and that the current DPD and SDPD diagnoses as proposed in the DSM are actually subtypes of a common personality pathology (i.e. a second-order factor).
在 DSM 的历史上，曾有两种被提议考虑的障碍具有许多共同特征 - 自我挫败人格障碍 (SDPD) 和抑郁人格障碍 (DPD)。在之前的一篇论文中，报告称 SDPD（n = 34）和 DPD（n = 240）具有 70%的诊断重叠。结论是，SDPD 不能作为一个经验支持的诊断类别。在本文中，同一批（n = 1,200）精神科门诊患者的样本中进一步探讨了这两种障碍的重叠。我们发现两种障碍的症状呈正相关。验证性因素分析 (CFA) 为具有两个独特但高度相关的结构的模型提供了强有力的支持。基于 SDPD 和 DPD 是独立但相关的假设，将二阶 CFA 因素拟合到数据中，以进一步检查两种障碍之间的强烈关联。总的来说，结论是 DPD 和 SDPD 是同一结构的组成部分，DSM 中提出的当前 DPD 和 SDPD 诊断实际上是共同人格病理的亚型（即二阶因素）。
