Measuring Trauma Exposure: Count Versus Variety of Potentially Traumatic Events in a Binational Sample
Measuring Trauma Exposure: Count Versus Variety of Potentially Traumatic Events in a Binational Sample
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DOI：
10.1002/jts.22563
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发表时间：
2020-06-29
影响因子：
3.3
通讯作者：
Garcia-Sosa, Icelini
中科院分区：
文献类型：
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作者：
Rasmussen, Andrew;Romero, Sara;Garcia-Sosa, Icelini
创伤事件清单通常要求受访者指出他们是否经历过特定类型的潜在创伤事件（PTE），然后将这些认可相加，以衡量累积的创伤暴露。然而，这些认可的总和表明了受访者经历过的各种PTE，而不是暴露事件的数量。本研究的主要目的是探讨PTE计数和多样性之间的关联，以检查使用创伤事件清单来衡量累积创伤暴露的假设。有限的实证研究表明，数量和品种是密切相关的，但是，可能有变化的幅度有关参与者的环境是否赋予增加或减少的风险暴露。我们从墨西哥和美国的参与者（n= 1，820）的大样本中提供了生活事件清单数据，这使我们能够比较计数和种类的报告。计数和品种是强相关的，肯德尔的tau-b = 0.74，这样计数占品种的方差的54.6%。负二项回归分析显示，这种关联是缓和县和municipio凶杀率，作为暴力犯罪的代理，而不是自然灾害的历史。多样性与DSM-5的创伤后应激量表得分的相关性更强，Kendall的tau-b = 0.26，而PTE计数的相关性更强，Kendall的tau-b = 0.22，Fisher的z =-8.04，p <0.001。虽然在估计PTE计数方面存在挑战，但目前的研究结果表明，PTE的多样性并不是累积创伤暴露的良好代表。
Traumatic event checklists typically ask respondents to indicate whether they have experienced particular types of potentially traumatic events (PTEs) and then sum these endorsements to gauge cumulative trauma exposure. However, the sum of these endorsements indicates the variety of PTEs respondents have experienced rather than the count of exposure events. The main objective of the present study was to explore the association between PTE count and variety to examine assumptions regarding the use of traumatic event checklists to measure cumulative trauma exposure. The limited empirical research suggests that count and variety are strongly associated; however, there may be variation in magnitude concerning whether participants' environments confer an increased or decreased risk of exposure. We present Life Event Checklist data from a large sample of Mexican and U.S. participants (n= 1,820), which allowed us to compare reports of count and variety. Count and variety were strongly correlated, Kendall's tau-b = .74, such that count accounted for 54.6% of the variance in variety. A negative binomial regression analysis revealed that this association was moderated by county andmunicipiohomicide rate, used as a proxy for violent crime, but not by natural disaster history. Variety was more strongly associated with scores on the Posttraumatic Stress Checklist forDSM-5, Kendall's tau-b = .26, than was PTE count, Kendall's tau-b = .22, Fisher'sz= -8.04,p< .001. Although there are challenges in estimating PTE counts, the present findings suggest that PTE variety is not a good proxy for cumulative trauma exposure.