Ryder A G, Bagby R M, Dion K L
Department of Psychology, University of British Columbia, Vancouver.
J Pers Disord. 2001 Feb;15(1):84-93. doi: 10.1521/pedi.15.1.84.18641.
Depressive personality disorder (DPD) is being considered for inclusion in future editions of the Diagnostic and Statistical Manual of Mental Disorders (DSM). However, there is substantial conceptual and empirical overlap between DPD and dysthymic disorder (Dysthymia) criteria, suggesting that these two constructs may not be distinct. Confirmatory factor analysis of the DPD traits and dysthymia symptoms in a large, nonclinical sample (N = 368) indicated that a two-factor model was a better fit than a one-factor model. However, binary diagnostic analysis revealed that over half of the individuals meeting criteria for DPD also met criteria for dysthymia and that the best-fitting model allowed the psychological symptoms of dysthymia to load on both DPD and dysthymia latent factors. All of the individuals with DPD alone failed to meet criteria for dysthymia because they did not report chronic depressed mood. Our results suggest that although DPD is not synonymous with Dysthymia, it may be a milder subtype.
抑郁性人格障碍（DPD）正被考虑纳入未来版的《精神疾病诊断与统计手册》（DSM）。然而，DPD与恶劣心境障碍（心境恶劣）的标准在概念和实证上存在大量重叠，这表明这两种结构可能并非截然不同。对一个大型非临床样本（N = 368）中的DPD特质和心境恶劣症状进行的验证性因素分析表明，双因素模型比单因素模型拟合得更好。然而，二元诊断分析显示，超过一半符合DPD标准的个体也符合心境恶劣的标准，并且拟合度最佳的模型允许心境恶劣的心理症状同时加载在DPD和心境恶劣的潜在因素上。所有仅患有DPD的个体均未达到心境恶劣的标准，因为他们未报告长期情绪低落。我们的结果表明，尽管DPD与心境恶劣并非同义词，但它可能是一种较轻的亚型。
