Women's Health Sciences Division, National Center for PTSD, VA Boston Healthcare System, Boston, MA, USA; Department of Psychiatry, Boston Chobanian & Avedisian School of Medicine, Boston, MA, USA.
Durham Veterans Affairs Health Care System, Durham, NC, USA; VA Mid-Atlantic Mental Illness Research, Education, and Clinical Center, Durham, NC, USA.
Psychiatry Res. 2023 Nov;329:115558. doi: 10.1016/j.psychres.2023.115558. Epub 2023 Oct 22.
Nonsuicidal self-injury (NSSI) is a debilitating concern among U.S. veterans, with wall/object-punching commonly endorsed as an NSSI method. We examined how this behavior relates to other NSSI methods and psychosocial outcomes. We conducted a latent class analysis (LCA) of NSSI methods among 1,138 Gulf War Era veterans, (77.9% male), 21.7% of whom endorsed lifetime NSSI. We categorized classes based on their associations with age, sex, combat and military sexual assault exposure, then examined the association of class membership with psychosocial indicators. LCA results supported four classes: 1) High punching/banging NSSI (2.5%); 2) Multimethod NSSI methods (6.3%); 3) High-risk, multimethod NSSI (3.1%); and 4) Low-risk NSSI (88.1%). Psychosocial indicators (suicide attempt, ideation, possible depressive or posttraumatic stress disorders, poor psychosocial functioning) were worse for members of the NSSI classes versus those in the low-risk group. A subset of U.S. veterans may engage in NSSI primarily via punching/banging methods. All patterns of NSSI engagement were associated with negative psychosocial outcomes relative to those in the low-risk class of the behavior.
非自杀性自伤（NSSI）是美国退伍军人中一种令人衰弱的问题，墙壁/物体撞击通常被认为是一种 NSSI 方法。我们研究了这种行为与其他 NSSI 方法和心理社会结果的关系。我们对 1138 名海湾战争时代退伍军人（77.9%为男性）进行了 NSSI 方法的潜在类别分析（LCA），其中 21.7%的人有过终生 NSSI。我们根据年龄、性别、战斗和军事性侵犯暴露与这些行为的关联对类别进行了分类，然后检查了类别的成员资格与心理社会指标的关联。LCA 结果支持四个类别：1）高频率 punching/banging NSSI（2.5%）；2）多方法 NSSI 方法（6.3%）；3）高风险、多方法 NSSI（3.1%）；和 4）低风险 NSSI（88.1%）。与低风险组相比，NSSI 类别的成员的心理社会指标（自杀企图、意念、可能的抑郁或创伤后应激障碍、心理健康功能不佳）更差。美国退伍军人中的一部分人可能主要通过 punching/banging 方法参与 NSSI。与低风险类别的行为相比，所有 NSSI 参与模式都与负面的心理社会结果相关。
