Objective The aim of this study was to determine the unique and combined associations of various military stress exposures with positive and negative mental health symptoms in active duty service members. Materials and Methods We investigated 87 male U.S. Navy Explosive Ordnance Disposal (EOD) technicians (age M ± SE, range 33.7 ± 0.6, 22-47 years). Those who endorsed a positive traumatic brain injury diagnosis were excluded to eliminate the confounding effects on mental health symptoms. Using a survey platform on a computer tablet, EOD technicians self-reported combat exposure, deployment frequency (total number of deployments), blast exposure (vehicle crash/blast or 50-m blast involvement), depression, anxiety, posttraumatic stress, perceived stress, and life satisfaction during an in-person laboratory session. Results When controlling for other military stressors, EOD technicians with previous involvement in a vehicle crash/blast endorsed worse mental health than their nonexposed counterparts. The interactions of vehicle crash/blast with deployment frequency and combat exposure had moderate effect sizes, and combat and deployment exposures demonstrated protective, rather than catalytic, effects on negative mental health scores. Conclusions Military stressors may adversely influence self-reported symptoms of negative mental health, but deployment experience and combat exposure may confer stress inoculation.

中文翻译：

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军事暴露可预测爆炸物人员的心理健康症状，但并不总是如预期的那样

目的 本研究的目的是确定现役军人各种军事压力暴露与积极和消极心理健康症状的独特关联和联合关联。材料和方法 我们调查了 87 名男性美国海军爆炸物处理 (EOD) 技术人员（年龄 M ± SE，范围 33.7 ± 0.6，22-47 岁）。那些认可创伤性脑损伤阳性诊断的人被排除在外，以消除对心理健康症状的混杂影响。使用平板电脑上的调查平台，EOD 技术人员自我报告战斗暴露、部署频率（部署总数）、爆炸暴露（车辆碰撞/爆炸或 50 米爆炸涉及）、抑郁、焦虑、创伤后压力、感知压力，以及亲自实验室会议期间的生活满意度。结果 在控制其他军事压力源时，以前参与过车祸/爆炸的 EOD 技术人员比未暴露的同行认可更差的心理健康状况。车辆碰撞/爆炸与部署频率和战斗暴露的相互作用具有适度的影响大小，并且战斗和部署暴露显示出对负面心理健康评分的保护作用，而不是催化作用。结论 军事压力源可能对自我报告的消极心理健康症状产生不利影响，但部署经验和战斗经历可能会带来压力接种。车辆碰撞/爆炸与部署频率和战斗暴露的相互作用具有适度的影响大小，并且战斗和部署暴露显示出对负面心理健康评分的保护作用，而不是催化作用。结论 军事压力源可能对自我报告的消极心理健康症状产生不利影响，但部署经验和战斗经历可能会带来压力接种。车辆碰撞/爆炸与部署频率和战斗暴露的相互作用具有适度的影响大小，并且战斗和部署暴露显示出对负面心理健康评分的保护作用，而不是催化作用。结论 军事压力源可能对自我报告的消极心理健康症状产生不利影响，但部署经验和战斗经历可能会带来压力接种。