This study examined the prevalence of somatic symptoms in post-traumatic stress disorder (PTSD) in a population-based military sample (N = 14,445). Descriptive statistics explored somatic symptom endorsement in the entire sample. A latent class analyses was conducted on participants with a posttraumatic stress checklist (PCL) score ≥29 (n = 2433), with class differentiated by somatic symptom endorsement.Multinomial logistic regression explored correlates of latent class. Somatic disorder was more prevalent in probable-PTSD (59.6%) and subsyndromal-PTSD (26.5%) than no-PTSD (5.0%) groups, supporting an intersection of pathophysiological processes between somatic and PTSD symptoms. A 3-class solution of Syndromal (26.7%),Psychological (17.7%), and Somatic (55.5%) classes provided the optimal representation of latent somatic symptom typologies in probable PTSD and subsyndromal PTSD. Differences between classes on key characteristics supported potentially meaningful class distinctions. Class was not predicted by number of deployments nor whether a member had ever deployed. However, class was predicted by life-time trauma, indicating that the PTSD somatic symptom relationship is not confined to combat related PTSD or the effect of toxic exposures on deployment, but that pre-existing pathophysiology related to life-time trauma may drive the relationship.The high degree of coincidence between PTSD and somatic symptoms and the high prevalence of somatic distress in the Syndromal and Somatic classes support somatic symptoms are a ubiquitous aspect of the clinical presentation and should be considered a central characteristic of PTSD and therefore included in the diagnostic criteria, as suggested by the original formulations of PTSD.

本研究检查了基于人群的军事样本（N = 14,445）中创伤后应激障碍 (PTSD) 躯体症状的患病率。描述性统计探讨了整个样本中的躯体症状认可。对创伤后压力检查表 (PCL) 评分 ≥ 29 (n = 2433) 的参与者进行潜在类别分析，类别由躯体症状背书区分。多项逻辑回归探讨了潜在类别的相关性。躯体障碍在可能的 PTSD (59.6%) 和亚综合征-PTSD (26.5%) 中比无 PTSD (5.0%) 组更普遍，支持躯体和 PTSD 症状之间病理生理过程的交叉。综合症状 (26.7%)、心理 (17.7%) 和躯体 (55. 5%) 类提供了可能的 PTSD 和亚综合征 PTSD 中潜在躯体症状类型的最佳表示。类别之间在关键特征上的差异支持潜在有意义的类别区别。等级不是通过部署数量或成员是否曾经部署来预测的。然而，类别是由终生创伤预测的，这表明 PTSD 躯体症状关系不仅限于对抗相关的 PTSD 或毒性暴露对部署的影响，而是与终生创伤相关的预先存在的病理生理学可能驱动这种关系.