Dusing Catherine Rice, Richards Maryse, Ochoa Nadia, Onyeka Cynthia
Loyola University Chicago.
Psychol Violence. 2020 Mar;10(2):182-191. doi: 10.1037/vio0000247. Epub 2019 Jun 27.
Children in low-income, urban neighborhoods are at high risk of exposure to violence (ETV) across settings and subsequent posttraumatic stress symptoms (PTSS). Little research has examined how multiple forms of ETV co-occur and relate to variations in children's posttraumatic responses. Furthermore, previous research primarily uses variable-centered methods, which can obscure person-level differences. The current study used person-centered methods to derive commonly occurring patterns of ETV by examining frequency of witnessing and victimization across family, school, and community contexts. The current study related profiles of ETV to demographic variables and PTSS, with the goal of obtaining nuanced representations of urban children's experiences of, risk factors for, and responses to violence.
Patterns of ETV were examined in a sample of 239 African American 7 grade youth using latent profile analysis. Profiles were related to demographic variables and PTSS using logistic regression.
Results showed three profiles: Low ( = 130, 54.4%), Moderate ( = 87; 36.4%), and High ( = 22; 9.2%) Exposure groups. The High Exposure group showed the highest levels of PTSS. The Moderate group showed the lowest levels of all PTSS, except dissociation. In contrast, the Low Exposure group showed significantly higher numbing and hypervigilance than the Moderate Exposure group.
Results support a dose-response model of ETV and PTSS, but implicate situational factors (e.g., setting) as important in understanding posttraumatic responses. The systematic variation in ETV and subsequent differences in PTSS expression illustrate the need for individualized trauma-informed intervention and thorough screenings in low-income, urban neighborhoods.
生活在城市低收入社区的儿童在各种环境中遭受暴力暴露(ETV)以及随后出现创伤后应激症状(PTSS)的风险很高。很少有研究探讨多种形式的ETV如何同时发生以及与儿童创伤后反应的差异之间的关系。此外,以往的研究主要采用以变量为中心的方法,这可能会掩盖个体层面的差异。本研究采用以个体为中心的方法,通过考察家庭、学校和社区环境中目睹暴力和成为受害者的频率,得出常见的ETV模式。本研究将ETV模式与人口统计学变量和PTSS相关联,目的是获得对城市儿童暴力经历、风险因素及对暴力反应的细致描述。
使用潜在剖面分析在239名非裔美国七年级青少年样本中考察ETV模式。使用逻辑回归将剖面与人口统计学变量和PTSS相关联。
结果显示出三种剖面:低暴露组(n = 130,54.4%)、中度暴露组(n = 87;36.4%)和高暴露组(n = 22;9.2%)。高暴露组的PTSS水平最高。中度暴露组在除解离之外的所有PTSS水平上最低。相比之下,低暴露组的麻木和过度警觉水平显著高于中度暴露组。
结果支持ETV与PTSS的剂量反应模型,但表明情境因素(如环境)在理解创伤后反应中很重要。ETV的系统变化以及随后PTSS表达的差异表明,在低收入城市社区需要进行个性化的创伤知情干预和全面筛查。