ArticlePsychology research and behavior management2025
Birth Order and Chinese Adolescent Mental Health within the Context of the Three-Child Policy: The Roles of Parenting Styles and Parental Company.
Article in Psychology research and behavior management, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Purpose: The implementation of the three-child policy brings about changes to family structures and resource distributions. However, little research has explored the effects of birth order on adolescent mental health in this context. This study aims to bridge the gap by investigating the relationship between birth order and mental health and discovering the underlying factors. Patients and Methods: In this cross-sectional study, 3581 adolescents from 42 schools across 17 cities in China were recruited. Data on mental health (the adapted Chinese version of the Strengths and Difficulties Questionnaire, SDQ), parenting styles (the Parenting Styles Scale), birth order, duration of parental company, and demographic characteristics were assessed. Hierarchical multiple regression analysis analyzes the relationships among these factors. Results: Compared with only-child adolescents, first-borns had higher scores of total SDQ ( Conclusion: This study elucidates the effects of birth order on adolescent mental health in the three-child policy era, revealing that parenting styles vary by birth order. First-borns may experience suboptimal parenting styles and shorter parental company, increasing mental health risks. Middle-borns may encounter neglectful parenting styles, while last-borns experience spoiled parenting styles. These findings emphasize the need for tailored support from parents and schools to address each child's unique needs and foster better psychological development. Limitations include reliance on self-reported data and the cross-sectional design that restricts causal inference. Future research should adopt longitudinal designs and explore cultural and regional variations.
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