Assari Shervin, Boyce Shanika, Bazargan Mohsen, Caldwell Cleopatra Howard
Department of Family Medicine, Charles R. Drew University of Medicine and Science, Los Angeles, 90059 CA, USA.
Department of Pediatrics, Charles R. Drew University of Medicine and Science, Los Angeles, 90059 CA, USA.
Sexes. 2020 Dec;1(1):19-31. doi: 10.3390/sexes1010002. Epub 2020 Oct 19.
The study aimed to investigate sex differences in the boosting effects of household income on children's executive function in the US. This is a cross-sectional study using data from Wave 1 of the Adolescent Brain Cognitive Development (ABCD) study. Wave 1 ABCD included 8608 American children between ages 9 and 10 years old. The independent variable was household income. The primary outcome was executive function measured by the stop-signal task. Overall, high household income was associated with higher levels of executive function in the children. Sex showed a statistically significant interaction with household income on children's executive function, indicating a stronger effect of high household income for female compared to male children. Household income is a more salient determinant of executive function for female compared to male American children. Low-income female children remain at the highest risk regarding poor executive function.
该研究旨在调查美国家庭收入对儿童执行功能的促进作用中的性别差异。这是一项横断面研究，使用了青少年大脑认知发展（ABCD）研究第一波的数据。ABCD研究第一波纳入了8608名9至10岁的美国儿童。自变量是家庭收入。主要结果是通过停止信号任务测量的执行功能。总体而言，高家庭收入与儿童较高水平的执行功能相关。性别在家庭收入对儿童执行功能的影响上显示出具有统计学意义的交互作用，表明高家庭收入对女童的影响比对男童更强。与美国男童相比，家庭收入对女童执行功能的决定作用更为显著。低收入女童在执行功能较差方面仍面临最高风险。
