Yang Haibo, Wang Li, Cao Chengqi, Cao Xing, Fang Ruojiao, Zhang Jianxin, Elhai Jon D
Laboratory for Traumatic Stress Studies, CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China; Academy of Psychology and Behavior, Tianjin Normal University, Tianjin, China.
Laboratory for Traumatic Stress Studies, CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China; University of Chinese Academy of Sciences, Beijing, China.
Eur J Psychotraumatol. 2017 Feb 8;8(1):1272789. doi: 10.1080/20008198.2016.1272789. eCollection 2017.
A large number of empirical studies pertaining to the latent dimensions of DSM-5 PTSD symptoms have accumulated. However, there is still a lack of studies specific to youths. This study sought to investigate the latent dimensions of DSM-5 PTSD symptoms in a sample of adolescents exposed to an explosion accident. Participants were 836 students (407 females and 428 males). Self-reported measures including the PTSD Checklist for DSM-5 and the anxiety and depression subscales of the 21-item Depression Anxiety Stress Scale were administered to participants. Confirmatory factor analysis (CFA) was implemented to test competing factor models. A seven-factor model composed of intrusion, avoidance, negative affect, anhedonia, externalizing behaviours, anxious arousal and dysphoric arousal factors emerged as the best fitting model, and PTSD's factors displayed distinguishable correlations with external measures of anxiety and depression. The findings provide and extend empirical evidence supporting the newly refined seven-factor hybrid model of DSM-5 PTSD symptoms, and have implications for further trauma-related clinical practice and research.
大量关于《精神疾病诊断与统计手册》第五版（DSM - 5）创伤后应激障碍（PTSD）症状潜在维度的实证研究已经积累起来。然而，针对青少年的具体研究仍然缺乏。本研究旨在调查经历爆炸事故的青少年样本中DSM - 5 PTSD症状的潜在维度。参与者为836名学生（407名女性和428名男性）。对参与者进行了自我报告测量，包括DSM - 5创伤后应激障碍检查表以及21项抑郁焦虑压力量表中的焦虑和抑郁分量表。实施验证性因素分析（CFA）以检验竞争因素模型。一个由闯入、回避、消极情绪、快感缺失、外化行为、焦虑唤醒和烦躁唤醒因素组成的七因素模型成为最佳拟合模型，并且PTSD的各因素与焦虑和抑郁的外部测量显示出可区分的相关性。这些发现提供并扩展了支持新完善的DSM - 5 PTSD症状七因素混合模型的实证证据，并对进一步的创伤相关临床实践和研究具有启示意义。
