Many veterans return from deployment with posttraumatic stress disorder (PTSD), but most attend only a limited number of mental health care visits. Although global PTSD relates to seeking mental health care, it is unclear whether specific features of PTSD inform the low rates of mental health care utilization. This study examined PTSD cluster severities of avoidance, reexperiencing, dysphoria, and hyperarousal as predictors of intention to seek mental health care and prospective treatment utilization. US veterans with at least subthreshold PTSD (N = 189) completed a PTSD symptom measure and indicated whether they intended to seek mental health care. Prospective Department of Veterans Affairs mental health care utilization was extracted from the medical record. At the bivariate level, each cluster was positively associated with a positive intention to seek mental health care and prospective treatment utilization. In multivariate models, however, dysphoria severity (OR = 1.16, 95% CI [1.06, 1.26]) was uniquely and positively correlated with intention to seek mental health care, whereas higher avoidance severity (IRR = 0.86, 95% CI [0.76, 0.98]) predicted lower treatment utilization, and higher reexperiencing severity (IRR = 1.07, 95% CI [1.01, 1.14]) predicted greater treatment utilization. It is critical to tailor interventions to target specific features of PTSD and to meet patients where they are. 標題：患有PTSD症狀的退役軍人中獨特PTSD群集預測尋求精神健康服務的意圖和續後使用情況。 撮要：很多退役軍人從派駐任務回國後患上創傷後壓力症(PTSD)，但大多只接受少量精神健康服務。雖然全球PTSD都與尋求精神健康服務相關，PTSD獨特性質未知能否預測精神健康服務的低使用率。本文檢視PTSD羣集(迴避、再經歷、煩躁和過激反應)嚴重程度作為尋求精神健康服務意願和未來服務使用率的預知因素。患有最少亞閾值PTSD的退役兵(N=189)完成一個PTSD症狀測試，和表明他們會否尋求精神健康服務。退役軍人事務部門精神健康服務的預期使用情況則從病歷中獲取。在雙變量水平，每一羣集與尋求精神健康服務和預期治療使用情況的正面意圖呈正相連。在複合變量模型中，煩燥程度(OR=1.16,95%CI=[1.06,1.26])獨特地與尋求精神健康服務呈正相連，而較重迴避程度(IRR=0.86,95%CI=[0.76,0.98])預測較低治療使用量。較嚴重再經歷程度(IRR=1.07,95%CI=[1.01,1.14])則預知較多治療使用。我們急需聚焦PTSD獨特性質的合適介入服務和接觸病者的確實狀況。 标题：患有PTSD症状的退役军人中独特PTSD群集预测寻求精神健康服务的意图和续后使用情况。 撮要：很多退役军人从派驻任务回国后患上创伤后压力症(PTSD)，但大多只接受少量精神健康服务。虽然全球PTSD都与寻求精神健康服务相关，PTSD独特性质未知能否预测精神健康服务的低使用率。本文检视PTSD羣集(回避、再经历、烦躁和过激反应)严重程度作为寻求精神健康服务意愿和未来服务使用率的预知因素。患有最少亚阈值PTSD的退役兵(N=189)完成一个PTSD症状测试，和表明他们会否寻求精神健康服务。退役军人事务部门精神健康服务的预期使用情况则从病历中获取。在双变量水平，每一羣集与寻求精神健康服务和预期治疗使用情况的正面意图呈正相连。在复合变量模型中，烦燥程度(OR=1.16,95%CI=[1.06,1.26])独特地与寻求精神健康服务呈正相连，而较重回避程度(IRR=0.86,95%CI=[0.76,0.98])预测较低治疗使用量。较严重再经历程度(IRR=1.07,95%CI=[1.01,1.14])则预知较多治疗使用。我们急需聚焦PTSD独特性质的合适介入服务和接触病者的确实状况。