VA Boston Healthcare System, Boston, MA 02130, USA.
J Affect Disord. 2012 Feb;136(3):366-9. doi: 10.1016/j.jad.2011.11.022. Epub 2011 Dec 10.
Prolonged Grief Disorder (PGD) is a new diagnosis proposed for inclusion in the DSM-V. Although some studies have shown the distinctiveness of PGD and posttraumatic stress disorder (PTSD), this relationship has yet to be tested within a context of sudden, violent loss.
We conducted an exploratory factor analysis (EFA) using self-report data collected from a sample of 587 bereaved adults who lost friends and relatives in the attacks of September 11th. Participants completed a 9-item PGD screening measure and the 17-item PTSD Checklist.
A five factor solution representing two distinct constructs emerged from our analysis. Although two PGD items loaded onto factors containing PTSD symptoms, these items assessed non-specific symptomatology (i.e., generalized negative affect). Thus, overall, our results support the distinctiveness of PGD and PTSD within a context of sudden, violent loss.
Data were collected using self-report. The representativeness of our sample is uncertain.
These findings provide a stringent test of construct validity and suggest that PGD warrants inclusion in the diagnostic nosology. Adding PGD to the DSM-V will help clinicians better assess and treat psychopathology resulting from grief.
延长哀伤障碍（PGD）是一个新的诊断，被提议纳入 DSM-V。虽然一些研究表明 PGD 与创伤后应激障碍（PTSD）的区别，但这种关系尚未在突发的暴力性丧失的背景下进行测试。
我们对 587 名因 911 袭击而失去朋友和亲人的丧亲者进行了一项探索性因素分析（EFA），他们使用自我报告数据完成了一项 9 项 PGD 筛查量表和 17 项 PTSD 清单。
从我们的分析中出现了一个代表两个不同结构的五因素解决方案。尽管两个 PGD 项目加载到包含 PTSD 症状的因素上，但这些项目评估的是非特异性症状（即，普遍的负面情绪）。因此，总的来说，我们的结果支持 PGD 和 PTSD 在突发、暴力性丧失的背景下的独特性。
数据是通过自我报告收集的。我们样本的代表性不确定。
这些发现对构念效度进行了严格的检验，并表明 PGD 值得纳入诊断分类。将 PGD 添加到 DSM-V 中将帮助临床医生更好地评估和治疗因悲伤而产生的心理病理学。
