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Parent-Child Separation and Diurnal Cortisol Rhythms Among Left-Behind Adolescents: The Moderating Role of Sex

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Abstract

Prior research examining parent-child separation and the hypothalamic–pituitary–adrenal (HPA) axis functioning has primarily focused on separation due to parental divorce or loss or forced migration. Less clear is the impact of parental economic migration on adolescents’ HPA axis functioning. The present study fills this gap by examining diurnal cortisol patterns among left-behind adolescents who experienced separation from their migrant parents. Participants were 293 Chinese adolescents (33.4% girls, 66.21% left-behind adolescents; Mage = 10.80 years old, SD = 0.82 years). Two-level multilevel modeling was conducted to examine the associations between parent-child separation experiences and diurnal cortisol patterns. Although no significant differences were found between left-behind adolescents and their non-left-behind peers, results revealed that left-behind adolescents who experienced parent-child separation at earlier ages had more blunted diurnal cortisol slopes (usually signaling poorer mental and physical health), compared to their counterparts who experienced separation at older ages. Left-behind adolescent girls who had more adverse separation experiences exhibited smaller waking cortisol and blunted diurnal slopes; these findings were not observed among left-behind adolescent boys. Observing the association between timing of parent-child separation and adolescents’ diurnal cortisol and the moderating effects of child sex, this study contributes uniquely to the developmental science of left-behind adolescents’ physiological health.

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Funding

This work was supported by the National Natural Science Foundation of China [Project #32071076] awarded to the last author. The work was partially funded by China Postdoctoral Science Foundation under award 2021M700484 for the first author. The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Natural Science Foundation of China or the China Postdoctoral Science Foundation.

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The data for the manuscript are not deposited but are available from the corresponding author on reasonable request.

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M.X. conceived of the study, reviewed the literature, performed the statistical analyses, and drafted the manuscript; Y.J. helped to interpret the data and edit the manuscript; S.Z. participated in the interpretation of the data and editing the manuscript; S.X. helped to draft the methods section and present the results; S.Z. conducted literature searches and drafted part of introduction; D.L. designed and supervised the original data collection and edited the manuscript. All authors read and approved the final manuscript.

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Correspondence to Danhua Lin.

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The study procedures were approved by Beijing Normal University Institutional Review Board. All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional research committee.

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Xie, M., Jiang, Y., Zilioli, S. et al. Parent-Child Separation and Diurnal Cortisol Rhythms Among Left-Behind Adolescents: The Moderating Role of Sex. J. Youth Adolescence 52, 2144–2157 (2023). https://doi.org/10.1007/s10964-023-01820-8

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