The mental well-being of adolescents, particularly those facing unique challenges such as parental absence due to labor migration, is a growing concern. A recent comprehensive study has shed light on the complex interplay between family functioning, shame, and non-suicidal self-injury (NSSI) among left-behind secondary school students in China. Conducted in 2024, the research identified distinct profiles of family dynamics and found that lower levels of family functioning significantly increase the risk of NSSI, with shame acting as a crucial psychological mediator. The study, which surveyed 2,385 secondary school students from two rural schools in Huaihua City, Hunan Province, employed sophisticated statistical methods, including latent profile analysis (LPA) and causal mediation modeling, to unravel these relationships. The findings underscore the heterogeneity of family environments experienced by these students and highlight the critical need for targeted interventions to support their mental health. Understanding the Left-Behind Phenomenon China’s rapid economic development and urbanization have led to a massive internal migration of its labor force. Millions of parents, primarily from rural areas, have moved to urban centers in search of employment, leaving behind a significant number of children. These "left-behind children" are often raised by grandparents or other relatives, leading to prolonged periods of separation from their parents. This separation can result in a deficit of parental emotional support, supervision, and guidance, particularly during adolescence – a critical period for psychological development and identity formation. Previous research has consistently linked the left-behind experience to a higher prevalence of mental health issues, including depression, anxiety, and low self-esteem. Non-suicidal self-injury (NSSI), defined by the DSM-5 as the deliberate destruction of one’s own body tissue without suicidal intent, is a concerning behavioral problem that disproportionately affects adolescents. Studies indicate that left-behind children are at a heightened risk for NSSI compared to their peers who live with both parents. This vulnerability is often attributed to the emotional void created by parental absence and the associated compromises in family functioning. Identifying Distinct Family Functioning Profiles A key innovation of this research was the application of latent profile analysis (LPA) to categorize family functioning among the 1,735 left-behind secondary school students who participated in the study. Unlike traditional approaches that examine average scores, LPA allows for the identification of distinct subgroups of individuals who share similar patterns of characteristics. The analysis revealed three discernible latent profiles of family functioning: Low Family Functioning Profile: This group characterized by consistently low scores across essential family dimensions such as emotional expression, partnership, growth, affection, and conflict resolution. This suggests a significant lack of emotional connection, support, and effective communication within these families. Moderate Family Functioning Profile: Students in this profile experienced family environments that offered a certain level of emotional interaction and support, but these were not as robust or consistent as in the high-functioning group. High Family Functioning Profile: This profile represented families with strong cohesion, open communication, ample emotional support, and effective problem-solving strategies. These families provided a stable and nurturing environment for the adolescents. The identification of these distinct profiles is crucial, as it moves beyond a generalized understanding of "poor" family functioning and allows for a more nuanced examination of risk pathways. The Direct Link Between Family Functioning and NSSI The study’s multivariable logistic regression analysis, which controlled for various demographic and socioeconomic factors, established a clear link between lower family functioning profiles and an increased risk of NSSI. Students in the low-functioning family profile exhibited a significantly higher risk of NSSI, with an odds ratio (OR) of 1.686 (95% CI: 1.346–2.114) compared to those in the high-functioning group. Even more striking, adolescents in the moderate-functioning family profile faced an even greater risk, with an OR of 2.880 (95% CI: 2.125–3.921) compared to their peers in high-functioning families. These findings underscore that even a moderately impaired family environment can substantially elevate the likelihood of NSSI. This suggests that the quality of emotional support, communication, and familial cohesion plays a vital role in protecting adolescents from engaging in self-harming behaviors. The consistent pattern across different adjustment models reinforces the robustness of this association, even after accounting for factors such as sex, age, grade, household income, and parental educational background. Shame: A Key Psychological Mediator Beyond the direct impact of family functioning, the research delved into the psychological mechanisms that might explain this association. Shame, a deeply negative self-conscious emotion characterized by a sense of worthlessness and inadequacy, emerged as a significant mediator. The study found that shame scores were significantly higher in both the low-functioning (β = 2.987, P < 0.001) and moderate-functioning (β = 3.762, P < 0.001) family profiles when compared to the high-functioning profile. This indicates that a less supportive family environment is directly associated with increased feelings of shame among these adolescents. Furthermore, the analysis revealed a strong and direct relationship between shame and NSSI. For every one-point increase in shame score, the risk of NSSI increased by approximately 33% (OR = 1.330, 95% CI: 1.260–2.041). This highlights shame as a potent predictor of self-injurious behavior. The Mediating Role of Shame in the Pathway Crucially, causal mediation analyses demonstrated that shame partially mediates the association between family functioning and NSSI. This means that lower family functioning contributes to NSSI not only directly but also indirectly by fostering shame. For students in the low-functioning family profile, shame accounted for 17.20% of the association between their family environment and NSSI. For those in the moderate-functioning family profile, shame explained 10.32% of this link. These findings are significant because they identify shame as a critical psychological bridge. Adolescents experiencing less supportive family environments may internalize negative self-perceptions, leading to heightened shame. This shame, in turn, can drive NSSI as a maladaptive coping strategy to manage overwhelming emotions, self-criticism, or feelings of worthlessness. The partial mediation suggests that while other factors may also contribute, shame is a demonstrably important psychological pathway through which family functioning impacts NSSI risk. Implications for Intervention and Prevention The study’s conclusions carry substantial implications for developing effective interventions and prevention strategies for left-behind secondary school students. Enhancing Family Functioning: Interventions should prioritize improving the quality of family interactions for left-behind children. This could involve programs that facilitate better communication between parents and children, even from a distance, and strengthen the emotional support provided by guardians (often grandparents). Educating parents and guardians on adolescent development and mental health needs is also paramount. Addressing Shame and Emotion Regulation: Given the significant mediating role of shame, interventions should directly target the reduction of shame and the development of healthy emotion regulation skills. This can be achieved through school-based counseling services, therapeutic groups, and individual therapy that focuses on building self-compassion, challenging negative self-talk, and promoting adaptive coping mechanisms. Identifying High-Risk Subgroups: The identification of distinct family functioning profiles allows for a more targeted approach. Students identified as belonging to low or moderate functioning profiles, and those exhibiting higher levels of shame, should be prioritized for mental health support. School-Family Collaboration: Effective prevention requires a collaborative effort between schools and families. Schools can act as vital points of detection and intervention, while families need to be engaged and supported in creating a more nurturing environment. Future Directions and Limitations While this study provides valuable insights, it is important to acknowledge its limitations. The cross-sectional design means that causal inferences, while strongly suggested by the mediation analysis, cannot be definitively established. Longitudinal studies tracking these students over time would be beneficial to confirm the causal pathways. Additionally, the study was conducted in only two rural schools, which may limit the generalizability of findings to other regions or urban populations. Reliance on self-report measures for NSSI and shame, while standard, can be subject to reporting bias. Future research could explore additional psychological mechanisms, such as depression, anxiety, and self-esteem, as potential mediators or moderators. Investigating the specific roles of different types of guardians (e.g., grandparents vs. other relatives) in shaping family functioning and NSSI risk would also be valuable. Furthermore, comparative studies examining these dynamics in urban versus rural settings, or among different ethnic groups, could provide a more comprehensive understanding of the issue. Conclusion The research offers a compelling analysis of the complex factors influencing non-suicidal self-injury among left-behind secondary school students. By employing latent profile analysis, the study successfully identified distinct family functioning types and demonstrated that lower levels of family functioning are significantly associated with an increased risk of NSSI. Crucially, shame was identified as a key psychological mediator, highlighting the internal emotional distress that arises from suboptimal family environments. These findings strongly advocate for integrated interventions that aim to improve family dynamics and directly address shame and emotion regulation challenges within this vulnerable adolescent population. Such efforts are essential to safeguard the mental well-being and foster healthier developmental trajectories for left-behind children navigating the complexities of parental absence. Post navigation Supporting Physical Education Teachers to Create an Empowering Motivational Climate
