Family conflict, chaos, and negative life events predict cortisol activity in low-income children.
Family conflict, chaos, and negative life events predict cortisol activity in low-income children.
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DOI：
10.1002/dev.21602
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发表时间：
2018-05
影响因子：
2.2
通讯作者：
Miller AL
中科院分区：
文献类型：
--
作者：
Doom JR;Cook SH;Sturza J;Kaciroti N;Gearhardt AN;Vazquez DM;Lumeng JC;Miller AL
儿童贫困被认为会增加心理和身体健康问题的风险，至少在一定程度上是通过下丘脑-垂体-肾上腺轴的失调。然而，关于与皮质醇反应和对贫困儿童的调节相关的具体心理社会应激因素，人们知之甚少。本研究调查了7-10岁低收入儿童(N=242；男性=7.9岁)在学龄前和儿童中期的负性生活事件、家庭混乱和家庭冲突作为皮质醇调节的潜在预测因素。参与者在学龄前接受评估，并在儿童期中期参与跟踪评估，在此期间评估每日游离皮质醇和对特里尔儿童社会压力测试(TSST-C)的游离皮质醇反应。学龄前的家庭混乱预示着在童年中期，皮质醇的昼夜倾斜率会变得更加迟钝。学龄前较多的负性生活事件和较多的家庭冲突与儿童中期的自由皮质醇反应增加有关。
Childhood poverty is hypothesized to increase risk for mental and physical health problems at least in part through dysregulation of the hypothalamic-pituitary-adrenal axis. However, less is known about the specific psychosocial stressors associated with cortisol reactivity and regulation for children living in poverty. The current study investigates negative life events, household chaos, and family conflict in preschool and middle childhood as potential predictors of cortisol regulation in low-income 7–10 year olds (N = 242; M age = 7.9 years). Participants were assessed in preschool and participated in a follow-up assessment in middle childhood, during which diurnal free cortisol and free cortisol reactivity to the Trier Social Stress Test for Children (TSST-C) were assessed. Household chaos during preschool predicted a more blunted diurnal cortisol slope in middle childhood. Greater negative life events during preschool and greater concurrent family conflict were associated with increased free cortisol reactivity in middle childhood.
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