Diurnal Cortisol in a Sample of Socioeconomically Disadvantaged Chinese Children: Evidence for the Shift-and-Persist Hypothesis
Diurnal Cortisol in a Sample of Socioeconomically Disadvantaged Chinese Children: Evidence for the Shift-and-Persist Hypothesis
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DOI：
10.1097/psy.0000000000000659
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发表时间：
2019-02-01
影响因子：
3.3
通讯作者：
Zilioli, Samuele
中科院分区：
文献类型：
--
作者：
Chen, Lihua;Li, Xiaoming;Zilioli, Samuele
目的低社会经济地位（SES）是影响健康的最重要的社会因素之一。然而，人们对如何保护生活在低社会经济地位环境中的个人（特别是儿童）的健康知之甚少。本研究探讨了心理策略的转变和坚持保护低SES儿童从压力相关的生理风险，通过测量钝（不健康）昼夜皮质醇profiles.Methods样本645名儿童（年龄8-15岁）从低SES背景和至少有一个HIV阳性的父母完成了电池的心理量表。昼夜皮质醇评估包括收集唾液样本，每天四次，持续3天，从中获得三个皮质醇参数。结果高水平的转换-坚持（被认为是一个单一变量）与高水平的皮质醇觉醒相关（B = 0.0119，SE = 0.0034，p <0.001）和更陡的皮质醇斜率（B =-0.0007，SE = 0.0003，p = 0.023）。在调整协变量后，这些相关性仍然显著，并且不随年龄而变化。在补充分析中，转移和坚持被视为单独的变量，这两种应对策略之间的相互作用显着预测皮质醇在觉醒（B = 0.0250，SE = 0.0107，p = 0.020）和皮质醇斜率（B =-0.0022，SE = 0.0011，p = .040），这表明转换和持续的组合对于预测昼夜皮质醇曲线是重要的。结论我们的研究结果表明，转换和持续的组合对于预测昼夜皮质醇曲线是重要的。坚持与社会经济上处于不利地位的儿童中更健康的昼夜皮质醇谱相关，并引入了这种应对策略对其他压力源具有保护作用的可能性，例如我们研究中儿童所特有的压力源（即，受父母艾滋病毒感染）。
Objective Low socioeconomic status (SES) is one of the most well-established social determinants of health. However, little is known about what can protect the health of individuals (especially children) living in low-SES circumstances. This study explored whether the psychological strategy of shift-and-persist protects low-SES children from stress-related physiological risks, as measured through blunted (unhealthy) diurnal cortisol profiles.Methods A sample of 645 children (aged 8-15 years) from low-SES backgrounds and having at least one HIV-positive parent completed a battery of psychological scales. Diurnal cortisol assessments included collection of saliva samples four times a day for 3 days, from which three cortisol parameters (cortisol at awakening, cortisol awakening response, and cortisol slope) were derived.Results Higher levels of shift-and-persist, considered as a single variable, were associated with higher cortisol at awakening (B = 0.0119, SE = 0.0034, p < .001) and a steeper cortisol slope (B = -0.0007, SE = 0.0003, p = .023). These associations remained significant after adjusting for covariates and did not vary by age. In supplementary analyses, where shifting and persisting were treated as separate variables, the interaction between these two coping strategies significantly predicted cortisol at awakening (B = 0.0250, SE = 0.0107, p = .020) and the cortisol slope (B = -0.0022, SE = 0.0011, p = .040), suggesting that the combination of shift-and-persist is important for predicting diurnal cortisol profiles.Conclusions Our findings demonstrate that shift-and-persist is associated with healthier diurnal cortisol profiles among socioeconomically disadvantaged children and introduce the possibility that this coping strategy is protective against other stressors, such as those uniquely faced by children in our study (i.e., being affected by parental HIV).