Psychological trauma has implications for many aspects of physical health, including preventive health behaviours (PHBs). However, whether trauma exposure additionally contributes to PHBs above and beyond the effects of posttraumatic stress disorder (PTSD) symptoms remains unclear. In this systematic review, 32 studies were analysed to characterise: (1) the relationships between trauma exposure and PHBs, (2) the relationships between PTSD symptoms and PHBs, (3) the unique associations between trauma exposure and PHBs, independent of PTSD symptoms, and (4) the unique associations between PTSD symptoms and PHBs, independent of trauma exposure. Findings were variable across the three examined PHBs (physical activity, diet, medical screening) when only trauma exposure or PTSD symptoms were taken into account. Clearer relationships emerged between trauma exposure and PHBs when PTSD symptoms were taken into account, demonstrating that trauma exposure is related to PHB engagement above and beyond the effects of PTSD symptoms. Additionally, PTSD symptoms shared unique associations with physical activity and screening frequency, which were not explained by trauma exposure. Our review reveals that teasing apart the effects of trauma exposure and PTSD symptoms on PHBs brings greater clarity to the strength and direction of these associations.

中文翻译：

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创伤暴露，创伤后压力和预防性健康行为：系统评价

心理创伤对身体健康的许多方面都有影响，包括预防性健康行为（PHB）。然而，尚不清楚创伤暴露是否额外导致PHB超出创伤后应激障碍（PTSD）症状的影响。在此系统评价中，分析了32项研究的特征：（1）创伤暴露与PHB之间的关系，（2）PTSD症状与PHB之间的关系，（3）创伤暴露与PHB之间的独特关联，独立于PTSD症状（4）PTSD症状与PHB之间的独特关联，与创伤暴露无关。当仅考虑创伤暴露或PTSD症状时，在三个检查的PHB（体力活动，饮食，医学筛查）中，发现是可变的。当考虑到PTSD症状时，在创伤暴露与PHB之间出现了更清晰的关系，表明创伤暴露与PHB参与超出PTSD症状的影响有关。此外，PTSD症状与体力活动和筛查频率具有独特的关联，而创伤暴露并不能解释这一点。我们的审查表明，减轻创伤暴露和PTSD症状对PHB的影响使这些关联的强度和方向更加清晰。