Department of Psychology, Wayne State University, Detroit, MI, 48202, United States.
Department of Psychology, Wayne State University, Detroit, MI, 48202, United States; Department of Family Medicine and Public Health Sciences, Wayne State University, Detroit, MI 48202, United States.
Brain Behav Immun. 2020 Aug;88:935-939. doi: 10.1016/j.bbi.2020.05.046. Epub 2020 May 20.
Individuals from different socioeconomic status (SES) backgrounds may respond variably to stressful events, and such differences are likely to contribute to health disparities. The current study leveraged data collected before and after a petrochemical explosion and aimed to investigate how individuals from different SES backgrounds responded to this unexpected stressor in terms of perceived social support, perceived stress, and systemic inflammation.
Data were drawn from 124 participants (M = 55.9 ± 16.1 years, 69.4% female, 29.0% White) living close to a petrochemical complex where the explosion occurred in 2005. SES was assessed at baseline, and perceived stress and inflammatory markers (i.e., C-reactive protein [CRP], interleukin-6 [IL-6]) were assessed at both pre- and post-explosion. Perceived social support was assessed at post-explosion.
Lower SES was associated with less perceived social support. Lower SES was also associated with a larger increase in perceived stress and higher levels of IL-6, but not CRP. Perceived social support did not moderate or mediate the effects of SES on changes in perceived stress, IL-6, or CRP. The associations between SES and inflammatory markers were also not explained by changes in perceived stress.
Findings from this study support the idea that individuals from different SES backgrounds respond differently to stressors at both the psychosocial (perceived social support and perceived stress) and biological (inflammation) levels. Our findings also suggest that these two processes appear to act independently from each other.
来自不同社会经济地位（SES）背景的个体可能对压力事件有不同的反应，这种差异可能导致健康差距。本研究利用 2005 年石化爆炸前后收集的数据，旨在调查来自不同 SES 背景的个体如何在感知社会支持、感知压力和系统炎症方面对这种意外应激源做出反应。
数据来自 124 名（M=55.9±16.1 岁，69.4%女性，29.0%白人）生活在石化综合体附近的参与者，该综合体发生了爆炸。SES 在基线时进行评估，感知压力和炎症标志物（即 C 反应蛋白 [CRP]、白细胞介素 6 [IL-6]）在爆炸前后均进行评估。感知社会支持在爆炸后进行评估。
较低的 SES 与较低的感知社会支持相关。较低的 SES 也与感知压力的更大增加和更高水平的 IL-6 相关，但与 CRP 无关。感知社会支持不能调节或介导 SES 对感知压力、IL-6 或 CRP 变化的影响。SES 与炎症标志物之间的关联也不能用感知压力的变化来解释。
本研究的结果支持这样一种观点，即来自不同 SES 背景的个体在心理社会（感知社会支持和感知压力）和生物（炎症）层面上对压力源的反应不同。我们的研究结果还表明，这两个过程似乎彼此独立。
