Karsberg Sidsel, Armour Cherie, Elklit Ask
National Centre for Psychotraumatology, University of Southern Denmark, Campusvej 55, 5230, Odense M, Denmark,
Soc Psychiatry Psychiatr Epidemiol. 2014 Sep;49(9):1389-99. doi: 10.1007/s00127-014-0890-4. Epub 2014 May 8.
The current study had two main aims. The first was to identify groups of adolescents based on their similarity of responding across a number of victimizing and potentially traumatic events (PTEs). In doing so, we employed the statistical technique of Latent Class Analysis (LCA). The second aim was to assess the relationship between our resultant classes and the covariates of gender, suicide attempt, and PTSD.
Two hundred and sixty-nine Greenlandic school students, aged 12-18 (M = 15.4, SD = 1.84) were assessed for their level of exposure to PTEs. In addition, adolescents were assessed for the psychological impact of these events. A LCA was performed on seven binary indicators representing PTEs. Logistic regression was subsequently implemented to ascertain the relationships between latent classes and covariates.
Three distinct classes were uncovered: a violence, neglect, and bullying class (class 1), a wide-ranging multiple PTE class (class 2), and a normative/baseline class (class 3). Notably, classes 1 and 2 were largely separated by the presence or absence of sexual PTEs. Individuals who reported having previously attempted suicide were almost six times more likely to be members of class 1 (OR = 5.97) and almost four times more likely to be members of class 2 (OR = 3.87) compared to the baseline class (class 3). Individuals who met the diagnostic criteria for PTSD were five times as likely to be members of class 1 and class 2 (OR = 5.09) compared to the baseline class. No significant associations were found between classes and gender.
The results underline the complexity of the interplay between multiple victimization experiences, traumatization, and suicide attempts.
本研究有两个主要目的。第一个目的是根据青少年在一系列受害和潜在创伤性事件（PTEs）中的反应相似性来确定青少年群体。在此过程中，我们采用了潜在类别分析（LCA）这一统计技术。第二个目的是评估我们得出的类别与性别、自杀未遂和创伤后应激障碍（PTSD）等协变量之间的关系。
对269名年龄在12至18岁（M = 15.4，SD = 1.84）的格陵兰学生进行了PTEs暴露水平评估。此外，还对青少年这些事件的心理影响进行了评估。对代表PTEs的七个二元指标进行了潜在类别分析。随后进行逻辑回归以确定潜在类别与协变量之间的关系。
发现了三个不同的类别：暴力、忽视和欺凌类别（类别1）、广泛的多种PTE类别（类别2）以及规范/基线类别（类别3）。值得注意的是，类别1和类别2在很大程度上因是否存在性PTEs而区分开来。与基线类别（类别3）相比，报告曾有过自杀未遂的个体成为类别1成员的可能性几乎高六倍（OR = 5.97），成为类别2成员的可能性几乎高四倍（OR = 3.87）。符合PTSD诊断标准的个体成为类别1和类别2成员的可能性是基线类别的五倍（OR = 5.09）。未发现类别与性别之间存在显著关联。
结果强调了多种受害经历、创伤和自杀未遂之间相互作用的复杂性。
