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Guo X, Wang L, Li Z, Feng Z, Lu L, Jiang L, Zhao L. Factors and pathways of non-suicidal self-injury in children: insights from computational causal analysis. Front Public Health 2024; 12:1305746. [PMID: 38532971 PMCID: PMC10963487 DOI: 10.3389/fpubh.2024.1305746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Accepted: 02/23/2024] [Indexed: 03/28/2024] Open
Abstract
Background Non-suicidal self-injury (NSSI) has become a significant public health issue, especially prevalent among adolescents. The complexity and multifactorial nature of NSSI necessitate a comprehensive understanding of its underlying causal factors. This research leverages the causal discovery methodology to explore these causal associations in children. Methods An observational dataset was scrutinized using the causal discovery method, particularly employing the constraint-based approach. By integrating machine learning and causal inference techniques, the study aimed to determine direct causal relationships associated with NSSI. The robustness of the causal relationships was evaluated using three methods to construct and validate it: the PC (Peter and Clark) method, Fast Causal Inference (FCI) method, and the GAE (Graphical Autoencoder) method. Results Analysis identified nine nodes with direct causal relationships to NSSI, including life satisfaction, depression, family dysfunction, sugary beverage consumption, PYD (positive youth development), internet addiction, COVID-19 related PTSD, academic anxiety, and sleep duration. Four principal causal pathways were identified, highlighting the roles of lockdown-induced lifestyle changes, screen time, positive adolescent development, and family dynamics in influencing NSSI risk. Conclusions An in-depth analysis of the factors leading to Non-Suicidal Self-Injury (NSSI), highlighting the intricate connections among individual, family, and pandemic-related influences. The results, derived from computational causal analysis, underscore the critical need for targeted interventions that tackle these diverse causative factors.
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Affiliation(s)
- Xinyu Guo
- Department of Health Policy and Management, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, China
| | - Linna Wang
- College of Computer Science, Sichuan University, Chengdu, Sichuan, China
| | - Zhenchao Li
- Department of Health Policy and Management, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, China
| | - Ziliang Feng
- College of Computer Science, Sichuan University, Chengdu, Sichuan, China
| | - Li Lu
- College of Computer Science, Sichuan University, Chengdu, Sichuan, China
| | - Lihua Jiang
- Department of Health Policy and Management, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, China
- Teaching and Research Section of General Practice, The General Practice Medical Center, West China Hospital of Sichuan University, Chengdu, China
| | - Li Zhao
- Department of Health Policy and Management, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, China
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Wang H, Deng Y, Li M, Tao Z, Yu C. Parental Psychological Control, the Parent-Adolescent Relationship, and Non-suicidal Self-Injury Among Chinese Adolescents: The Moderating Effect of the Oxytocin Receptor Gene rs53576 Polymorphism. Child Psychiatry Hum Dev 2023:10.1007/s10578-023-01646-2. [PMID: 38110758 DOI: 10.1007/s10578-023-01646-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/21/2023] [Indexed: 12/20/2023]
Abstract
Parental psychological control (PPC) is associated with adolescent non-suicidal self-injury (NSSI); however, its underlying mechanisms have not been extensively investigated. Considering that genetic and environmental factors interactively influence adolescent development, this study examined whether the parent-adolescent relationship mediated the link between PPC and adolescent NSSI, and whether this mediating process was moderated by the oxytocin receptor gene rs53576 polymorphism (OXTR rs53576). Participants comprised 673 adolescents (Meanage = 12.81 years, SD = 0.48 years) who completed questionnaires regarding PPC, the parent-adolescent relationship, and NSSI. DNA was extracted from each participant's saliva samples. The results indicated that the positive association between PPC and adolescent NSSI was mediated by the parent-adolescent relationship. Moreover, this indirect link was stronger for adolescents with AA homozygotes of OXTR rs53576 than for those with the GG or AG genotype. These findings extend our understanding of the association between PPC and adolescent NSSI and suggest that a simultaneous focus on PPC, the parent-adolescent relationship, and OXTR rs53576 may favor NSSI interventions.
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Affiliation(s)
- Huahua Wang
- Department of Psychology, School of Education, Guangzhou University, Guangzhou, 510006, Guangdong, China
| | - Yuting Deng
- Department of Psychology, School of Education, Guangzhou University, Guangzhou, 510006, Guangdong, China
| | - Meijin Li
- Zhangbian Primary School, Guangzhou, 511446, Guangdong, China
| | - Zhiyuan Tao
- School of Psychology, South China Normal University, Guangzhou, 510631, Guangdong, China
| | - Chengfu Yu
- Department of Psychology, School of Education, Guangzhou University, Guangzhou, 510006, Guangdong, China.
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Li X, Liu S, Tian Y, He J, Chen H, Ning M, Chen Z, Yang J, Li Y, Zhou J. Challenges for psychiatric nurses working with non-suicidal self-injury adolescents: a qualitative study. BMC Nurs 2023; 22:382. [PMID: 37833692 PMCID: PMC10571286 DOI: 10.1186/s12912-023-01542-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Accepted: 09/27/2023] [Indexed: 10/15/2023] Open
Abstract
BACKGROUND Psychiatric nurses play a crucial role in treating and supporting adolescents with non-suicidal self-injury (NSSI) in China. However, few studies have explored their experiences and challenges. OBJECTIVES The aim of this qualitative study was to describe the challenges experienced by psychiatric nurses when working with adolescents having NSSI behaviors. METHODS This was a descriptive qualitative study using phenomenological approach. 18 psychiatric nurses from psychiatric wards were recruited from a tertiary hospital from Changsha, Hunan province, China. In-depth interview was performed for each participant collecting information about their feelings and experiences taking care of NSSI adolescents. ATLAS.ti 8 was used to enter data and perform thematic analysis following the six-phased process described by Braun and Clarke. RESULTS Two main themes and five sub-themes were summarized in this study. Nurses experienced both (1) Internal challenges (Lacking knowledge and skills to deal with NSSI adolescents and Feeling hard and stressful working with NSSI adolescents) and (2) External barriers (Unrealistic high expectations from family and schools, Uncooperative parents and Little help from communities and schools). CONCLUSIONS Psychiatric nurses had to face with their own negative feelings, insufficient knowledge and skills, alongside with pressures and little help from family, schools and communities when working with NSSI adolescents. Targeted training programs of treating NSSI adolescents and their supporting systems be performed in nurses, furthermore, family, schools and societies should also be raised.
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Affiliation(s)
- Xuting Li
- Clinical Nursing Teaching and Research Section, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
- Department of Psychiatry, National Clinical Research Center for Mental Disorders, The Second Xiangya Hospital, Central South University, Changsha, China
- Department of Thoracic Surgery, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Shiyan Liu
- Department of Psychiatry, National Clinical Research Center for Mental Disorders, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Yusheng Tian
- Clinical Nursing Teaching and Research Section, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
- Department of Psychiatry, National Clinical Research Center for Mental Disorders, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Juan He
- Xiangya School of Nursing, Central South University, Changsha, Hunan, China
| | - Hui Chen
- Department of Psychiatry, National Clinical Research Center for Mental Disorders, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Meng Ning
- Xiangya School of Nursing, Central South University, Changsha, Hunan, China
| | - Zengyu Chen
- Xiangya School of Nursing, Central South University, Changsha, Hunan, China
| | - Jiaxin Yang
- Clinical Nursing Teaching and Research Section, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
- Department of Psychiatry, National Clinical Research Center for Mental Disorders, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Yamin Li
- Clinical Nursing Teaching and Research Section, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China.
| | - Jiansong Zhou
- Department of Psychiatry, National Clinical Research Center for Mental Disorders, The Second Xiangya Hospital, Central South University, Changsha, China.
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Li L, Yang H. Heterogeneity in Adolescents' Non-Suicidal Self-Injury Behaviour Trajectories Based on the Group-Based Trajectory Model and a Decision Tree Analysis of Family-Related Determinants. Psychol Res Behav Manag 2023; 16:3359-3371. [PMID: 37654969 PMCID: PMC10465360 DOI: 10.2147/prbm.s427090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Accepted: 08/19/2023] [Indexed: 09/02/2023] Open
Abstract
Background Non-suicidal self-injury (NSSI) is a global public health problem. While some studies have noted the importance of behavioural development patterns in NSSI, most NSSI research is based on cross-sectional survey data. Few studies explore the time-series heterogeneity of trajectories of NSSI symptoms and family-related influencing factors of NSSI. Aim The purpose of the study was to identify the heterogeneity in trajectories of adolescents' NSSI behaviour and their family-related influencing factors. Methods The group-based trajectory model (GBTM) was used to identify the heterogeneity in the NSSI behaviour trajectories of 208 adolescents in China. Next, the decision tree model (DTM) was used to analyse which family related factors influence the trajectory type. Results The GBTM revealed two heterogeneous trajectories of NSSI behaviour: the high-risk and low-risk NSSI behaviour groups. Next, DTM's average accuracy was 83.2%. A total of seven independent variables were used for the DTM: gender, number of NSSIs in the past month, and family economic, family structure, family conflict, parental psychological control, parental behavior control and family intimacy risks. Family conflict risk was located at the root node and was the most important factor. Conclusion Heterogeneity within the population should be considered in the management of adolescents' NSSI behaviours. Further, from the perspective of family system theory and cumulative risk, focusing on the adverse effect of multiple risk factors on adolescents' NSSI addiction is more meaningful rather than the impact of single risk factors. Studies that use time series data should focus on the trend of dynamic changes in NSSI addiction characteristics over time.
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Affiliation(s)
- Linbo Li
- College of Nursing, Shanxi Medical University, Taiyuan, Shanxi, People’s Republic of China
| | - Hui Yang
- College of Nursing, Shanxi Medical University, Taiyuan, Shanxi, People’s Republic of China
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Deng W, Yan S, Xu Y, Lu Z, Liu L, Zhou Y, Chen M. Effects of BPD tendencies and subjective well-being on NSSI in adolescents with PTSD. Front Psychiatry 2023; 14:1152352. [PMID: 37398590 PMCID: PMC10308082 DOI: 10.3389/fpsyt.2023.1152352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 05/04/2023] [Indexed: 07/04/2023] Open
Abstract
Background Severe posttraumatic stress disorder (PTSD) may lead to non-suicidal self-injury (NSSI), and borderline personality disorder (BPD) tendencies may play a role in this process. Secondary vocational students experience more social, familial and other pressures and are more vulnerable to psychological problems. Thus, we explored the effect of BPD tendencies and subjective well-being (SWB) on NSSI in secondary vocational students with PTSD. Methods A total of 2,160 Chinese secondary vocational students in Wuhan participated in our cross-sectional investigation. The Diagnostic and Statistical Manual of Mental Disorders, 5th edition (DSM-5), criteria for PTSD, NSSI Questionnaire, Personality Diagnostic Questionnaire-4+, subjective well-being scale, and family adaptation, partnership, growth, affection, and resolve (APGAR) Index were used. We conducted a binary logistic regression model and linear regression analysis. Results Sex (odds ratio [OR] = 0.354, 95% confidence interval [CI] = 0.171-0.733), BPD tendencies (OR = 1.192, 95% CI = 1.066-1.333) and SWB (OR = 0.652, 95% CI = 0.516-0.824) were independent factors that predicted NSSI in secondary vocational students with PTSD. Spearman's correlation analysis showed that BPD tendencies were positively correlated with NSSI frequency (r = 0.282, P < 0.01). SWB was negatively correlated with NSSI frequency (r = -0.301, P < 0.01). The linear regression showed that BPD tendencies (β = 0.137, P < 0.05 and β = -0.230, P < 0.001) were significantly correlated with NSSI frequency. Spearman's correlation analysis showed that family functioning was positively correlated with SWB (r = 0.486, P < 0.01) and negatively correlated with BPD tendencies (r = -0.296, P < 0.01). Conclusion In adolescents, PTSD in response to stressful events could lead to NSSI, and BPD tendencies promote the intensity of NSSI, while SWB diminishes its intensity. Improvement in family functioning may actively guide the development of mental health and improve SWB; such steps may constitute interventions to prevent or treat NSSI.
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Affiliation(s)
- Weixi Deng
- Affiliated Wuhan Mental Health Center, Tongji Medical College of Huazhong, University of Science and Technology, Wuhan, China
| | - Shu Yan
- Department of Psychiatry, Wuhan Mental Health Center, Wuhan, China
- Department of Psychiatry, Wuhan Hospital for Psychotherapy, Wuhan, China
| | - Yongjun Xu
- Wuhan Dongfang Bode Psychiatric Hospital, Wuhan, China
| | - Zhaoyuan Lu
- School of Medicine, Jianghan University, Wuhan, China
| | - Lianzhong Liu
- Affiliated Wuhan Mental Health Center, Tongji Medical College of Huazhong, University of Science and Technology, Wuhan, China
- Department of Psychiatry, Wuhan Mental Health Center, Wuhan, China
- Department of Psychiatry, Wuhan Hospital for Psychotherapy, Wuhan, China
| | - Yang Zhou
- Department of Psychiatry, Wuhan Mental Health Center, Wuhan, China
- Department of Psychiatry, Wuhan Hospital for Psychotherapy, Wuhan, China
| | - Mo Chen
- Department of Psychiatry, Wuhan Mental Health Center, Wuhan, China
- Department of Psychiatry, Wuhan Hospital for Psychotherapy, Wuhan, China
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Wang Y, Liu Y, Zhou J. Cyberbullying Victimization and Nonsuicidal Self-Injury in Early Adolescents: A Moderated Mediation Model of Social Anxiety and Emotion Reactivity. CYBERPSYCHOLOGY, BEHAVIOR AND SOCIAL NETWORKING 2023. [PMID: 37140449 DOI: 10.1089/cyber.2022.0346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
This study examined the mediating role of social anxiety in the relation between cyberbullying victimization and nonsuicidal self-injury (NSSI), as well as the moderating role of emotion reactivity in those associations. Participants included 2,864 adolescents (Mage = 12.46, SD = 1.36, 47.1 percent girls). Results of path analysis showed that cyberbullying victimization was significantly related to NSSI, and social anxiety plays a mediating role in the relation between them. Emotion reactivity strengthened the effect of cyberbullying victimization on NSSI and of social anxiety on NSSI. The results further showed that the mediating effect of social anxiety was more prominent for youths who have higher levels of emotion reactivity. Interventions to reduce adolescent social anxiety and emotion reactivity may interrupt the pathway from cyberbullying victimization to NSSI.
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Affiliation(s)
- Yuan Wang
- School of Psychology, Northwest Normal University, Lanzhou, China
| | - Yanyan Liu
- School of Psychology, Northwest Normal University, Lanzhou, China
| | - Jianhua Zhou
- School of Psychology, Northwest Normal University, Lanzhou, China
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Zhou J, Gong X. Longitudinal relation between maladaptive parenting and nonsuicidal self-injury among Chinese early adolescents: The roles of internalizing symptoms and FKBP5 gene variation. J Affect Disord 2023; 331:33-42. [PMID: 36934853 DOI: 10.1016/j.jad.2023.03.034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 03/08/2023] [Accepted: 03/14/2023] [Indexed: 03/21/2023]
Abstract
BACKGROUND While increasing research has effectively documented that maladaptive parenting is a significant risk factor for adolescent nonsuicidal self-injury, the process mechanism and gene-by-environment interaction in this relation among Chinese early adolescents are still poorly understood. METHODS In this study, a multi-informant longitudinal design was applied to investigate the indirect effect of internalizing symptoms in the relation between maladaptive parenting and nonsuicidal self-injury, and to examine how FKBP5 gene variation moderates these association. A total of 1718 Chinese Han early adolescents (44.30 % girls; Mage at Wave 1 = 10.35) and their parents participated this study. RESULTS The results showed that maladaptive parenting significantly predicts adolescent nonsuicidal self-injury after six months. Maladaptive parenting was also indirectly related to nonsuicidal self-injury via internalizing symptoms. Moreover, using a cumulative genetic score approach, the results showed that FKBP5 gene variation moderates the predictive effect of maladaptive parenting on internalizing symptoms and also moderates the indirect effect of internalizing symptoms between maladaptive parenting and nonsuicidal self-injury. These effects were more salient among adolescents with high (versus low) FKBP5 gene related cumulative genetic score linked to heightened stress reactivity. LIMITATIONS Our study only obtained two waves of data. Three waves of data would be more suitable for examining a mediation model. CONCLUSION This study reveals the process mechanism between maladaptive parenting and nonsuicidal self-injury and highlights the significance of gene-by-environment interaction to explain the emergence of nonsuicidal self-injury among adolescents.
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Affiliation(s)
- Jianhua Zhou
- School of Psychology, Northwest Normal University, Lanzhou, People's Republic of China
| | - Xue Gong
- Department of Psychology, Normal College, Qingdao University, Qingdao, People's Republic of China.
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Jiang Z, Wang Z, Diao Q, Chen J, Tian G, Cheng X, Zhao M, He L, He Q, Sun J, Liu J. The relationship between negative life events and non-suicidal self-injury (NSSI) among Chinese junior high school students: the mediating role of emotions. Ann Gen Psychiatry 2022; 21:45. [PMID: 36403014 PMCID: PMC9675228 DOI: 10.1186/s12991-022-00423-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Accepted: 11/12/2022] [Indexed: 11/21/2022] Open
Abstract
BACKGROUND Adolescent non-suicidal self-injury (NSSI) is common and adolescence is the most common period of first self-injury, and the occurrence of NSSI is influenced by negative life events and emotional symptoms. The mediating role of emotional symptoms in the interaction between negative life events and NSSI has not been carefully investigated yet. METHODS For middle school students in three schools in a Chinese province, the Adolescents Self-Harm Scale was used to investigate NSSI, the Adolescent Self-Rating Life Events Check List was used to investigate adolescent negative life events, and the Self-Rating Anxiety Scale and Self-Rating Depression Scale were used to assess their emotional symptoms. After the description of general data and the test for differences between groups, the relationship between negative life events, emotional symptoms and NSSI was analyzed using Pearson correlation analysis. Structural equation modeling was used to analyze the mediating role of emotions in negative life events and NSSI. RESULTS A total of 2376 junior high school students completed this survey, which revealed an annual NSSI prevalence of 37.1% (n = 881) and a higher prevalence of NSSI among girls and rural adolescents. Among adolescents who developed NSSI, 67.4% (N = 594) used multiple means of self-injury. The most common means of self-injury was hair pulling (51.0%), and the most common NSSI purpose and external factors/events were venting bad emotions or feelings (57.5%) and poor academic performance (44.9%), respectively. Negative life events, emotional symptoms and NSSI were positively associated (P < 0.05). Structural equation modeling with negative life events, emotional symptoms and NSSI as variables showed that the model-fit index matched the data well, with RMSEA = 0.073, AGFI = 0.945, GFI = 0.980, CFI = 0.985, NFI = 0.982, TLI = 0.968, IFI = 0.985, and negative life events, emotional symptoms (anxiety, depression) and NSSI all had direct effects with standardized path coefficients of 0.16, 0.19, and 0.23, respectively, with negative life events playing an indirect role in NSSI through emotional symptoms and emotional symptoms playing an incomplete mediating role in negative life events and NSSI. CONCLUSION The prevalence of NSSI was higher among Chinese junior high school students. Both negative life events and emotional symptoms were direct risk factors for NSSI. In addition, negative life events were also indirect risk factors for NSSI, and emotional symptoms played an incomplete mediating role in the relationship between the effects of negative life events and NSSI. This indicates that the combination of reducing the frequency of negative life events while maintaining individual emotional stability during adolescent development can effectively reduce the prevalence of NSSI in adolescents.
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Affiliation(s)
- Zhongliang Jiang
- Department of Child and Adolescent Psychiatry, Shandong Mental Health Center, Shandong University, Shandong, China
| | - Zhiyi Wang
- Department of Child and Adolescent Psychiatry, Shandong Mental Health Center, Shandong University, Shandong, China
| | - Qidi Diao
- Department of Child and Adolescent Psychiatry, Shandong Mental Health Center, Shandong University, Shandong, China
| | - Jie Chen
- Department of Child and Adolescent Psychiatry, Shandong Mental Health Center, Shandong University, Shandong, China
| | - Geng Tian
- Department of Child and Adolescent Psychiatry, Shandong Mental Health Center, Shandong University, Shandong, China
| | - Xiaojing Cheng
- Department of Child and Adolescent Psychiatry, Shandong Mental Health Center, Shandong University, Shandong, China
| | - Miao Zhao
- Department of Child and Adolescent Psychiatry, Shandong Mental Health Center, Shandong University, Shandong, China
| | - Long He
- Department of Child and Adolescent Psychiatry, Shandong Mental Health Center, Shandong University, Shandong, China
| | - Qiang He
- Department of Child and Adolescent Psychiatry, Shandong Mental Health Center, Shandong University, Shandong, China
| | - Jin Sun
- Department of Developmental Pediatrics and Child Health Care, The First Affiliated Hospital of Shandong First Medical University and Shandong Provincial Qianfoshan Hospital, Shandong, China
| | - Jintong Liu
- Department of Child and Adolescent Psychiatry, Shandong Mental Health Center, Shandong University, Shandong, China.
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Deng Y, Li M, Wang H, Li J, He X, Yu C. Parent-Adolescent Conflict, Depressive Symptoms, and Non-Suicidal Self-Injury among Chinese Adolescents: The Moderating Effect of the COMT Gene rs4680 Polymorphism. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:10567. [PMID: 36078283 PMCID: PMC9517911 DOI: 10.3390/ijerph191710567] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Revised: 08/04/2022] [Accepted: 08/16/2022] [Indexed: 06/15/2023]
Abstract
Existing research suggests that parent-adolescent conflict is associated with increased risk for adolescent non-suicidal self-injury (NSSI). However, adolescent NSSI reactions to parent-adolescent conflicts exhibit large individual differences. This study sought to explore whether depressive symptoms mediates the relationship between parent-adolescent conflict and adolescent NSSI, and whether this mediating process is moderated by the COMT gene rs4680 polymorphism. A total of 673 adolescents (364 males, 309 females) in the age range of 12 to 15 years (Meanage = 12.81 years, SD = 0.48) completed questionnaires regarding parent-adolescent conflict, depressive symptoms, and NSSI. Genomic DNA was extracted from saliva and buccal cells from each participant. Bootstrapping techniques displayed statistically significant moderated mediation. The results showed that the positive association between parent-adolescent conflict and adolescent NSSI was in fact mediated by depressive symptoms. Moreover, this indirect link was moderated by the COMT gene rs4680 polymorphism. Specifically, the risk effect of parent-adolescent conflict on adolescent NSSI via depressive symptoms was stronger for adolescents with Val/Val genotype than for those with Met/Met or Val/Met genotype. These findings underscore the importance of examining the interaction between genes and the environment to understand how and when parent-adolescent conflict impacts adolescent NSSI.
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Affiliation(s)
- Yuting Deng
- Department of Psychology, Research Center of Adolescent Psychology and Behavior, School of Education, Guangzhou University, Guangzhou 510006, China
| | - Meijin Li
- Department of Psychology, Research Center of Adolescent Psychology and Behavior, School of Education, Guangzhou University, Guangzhou 510006, China
| | - Huahua Wang
- Department of Psychology, Research Center of Adolescent Psychology and Behavior, School of Education, Guangzhou University, Guangzhou 510006, China
| | - Jingjing Li
- School of Psychology, South China Normal University, Guangzhou 510631, China
| | - Xu He
- School of Psychology, South China Normal University, Guangzhou 510631, China
| | - Chengfu Yu
- Department of Psychology, Research Center of Adolescent Psychology and Behavior, School of Education, Guangzhou University, Guangzhou 510006, China
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