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Insomnia symptoms and non-suicidal self-injury in adolescence: understanding temporal relations and mechanisms.

ABSTRACT: We propose a theoretical model of insomnia symptoms and non-suicidal self-injury (NSSI) that posits bidirectional linkages. We hypothesised that heightened depressive symptoms and impulsivity that result from insomnia increase NSSI. We also posit that the shame associated with NSSI triggers repetitive negative thinking, in turn increasing insomnia. Using three longitudinal waves of questionnaire data collected annually from a sample of Swedish adolescents (n = 1,457; M_age = 13.2, SD = 0.43; 52.7% boys), we assessed the mediating role of depressive symptoms, impulsivity, rumination, and worry on the link between insomnia and NSSI. After controlling for depressive symptoms, we found that insomnia was related to increases in NSSI from the second to the third time point (ß₂₃ = 0.09, p = .01). NSSI was consistently related to increased insomnia (ß₁₂ = 0.09, p = .01; ß₂₃ = 0.11, p < .001). In addition, depressive symptoms (ß_ind = 0.01, p = .02), but not impulsivity (ß_ind = 0.01, p = .09), mediated the path from insomnia to increased NSSI. Neither worry (ß_ind = 0.00, p = .59) nor rumination (ß_ind = 0.00, p = .96) mediated the link between NSSI and increased insomnia. We conclude that NSSI and insomnia maintain each other over time. Thus, screening adolescents for insomnia symptoms may help identify those at risk of NSSI. Although depression seems to explain why insomnia is a risk factor for NSSI, further studies should investigate why NSSI plays a role in the maintenance of insomnia. This understanding will lay the foundation for intervention.

SUBMITTER: Latina D

PROVIDER: S-EPMC7900995 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature

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Insomnia symptoms and non-suicidal self-injury in adolescence: understanding temporal relations and mechanisms.

Latina Delia D Bauducco Serena S Tilton-Weaver Lauree L

Journal of sleep research 20200907 1

We propose a theoretical model of insomnia symptoms and non-suicidal self-injury (NSSI) that posits bidirectional linkages. We hypothesised that heightened depressive symptoms and impulsivity that result from insomnia increase NSSI. We also posit that the shame associated with NSSI triggers repetitive negative thinking, in turn increasing insomnia. Using three longitudinal waves of questionnaire data collected annually from a sample of Swedish adolescents (n = 1,457; M<sub>age</sub> = 13.2, SD ...[more]

PMID: 32893426

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Project description:ObjectiveThis study aimed to explore the relationship between different types of interpersonal relationships and anxiety symptoms, depressive symptoms, and suicidal ideation and discusses the impact of different grades among middle school students.MethodsThe Patient Health Questionnaire Depression Scale, the Chinese version of the Generalized Anxiety Scale, suicidal ideation questions, and interpersonal relations items were used to measure the depression symptoms, anxiety symptoms, suicidal ideation, and interpersonal relations of the participants. The variables of anxiety symptoms, depressive symptoms, suicidal ideation, and interpersonal relations were screened using the Chi-square test and principal component analysis. AMOS17.0 constructs the path of the association between interpersonal relations and depressive symptoms, anxiety symptoms, and suicidal ideation.ResultsThe mother-child relationship had direct impacts of -0.06, -0.07, and -0.06 on anxiety symptoms, depressive symptoms, and suicidal ideation. On anxiety symptoms, depressive symptoms, and suicidal ideation, the direct impacts of the father-child relationship were -0.09, -0.03, and -0.08. Moreover, the direct effects of peer relationships on depressive symptoms were -0.04, whereas the direct impact of teacher-student relationships on anxiety and depressive symptoms were -0.10 and -0.09. Further pathway analysis based on grade level showed that in the junior high school model, the direct effect of the mother-child relationship on anxiety and depressive symptoms was -0.18 and -0.16. The direct impact of the father-child relationship on depressive symptoms and suicidal ideation was -0.08 and 0.09. The direct effect of peer relationships on depressive symptoms was -0.08, and the direct impact of the teacher-student relationship on anxiety symptoms was -0.06. In the high school model, the direct effect of the mother-child relationship on suicidal ideation was -0.07, while the direct impact of the father-child relationship on anxiety, depression, and suicidal ideation was -0.10, -0.07, and -0.12, respectively. In addition, the direct effects of peer relationships on anxiety and depression were -0.06 and -0.05, and the direct impact of teacher-student relationships on anxiety and depression was -0.10 and -0.11.ConclusionThe father-child relationship affects suicidal ideation and depression the most, followed by the mother-child relationship, the teacher-student interaction, and the peer relationship. The teacher-student relationship influences anxiety symptoms the most, followed by the father-child and mother-child relationships. The association between interpersonal interactions and anxiety, depressive symptoms, and suicidal ideation varied significantly across grade levels.

Project description:ObjectiveThe high co-occurrence of non-suicidal self-injury (NSSI) behaviours and eating disorder (ED) symptoms suggests these conditions share common aetiological processes. We assessed a new integrative model of shared factors for NSSI and ED symptoms, where affect dysregulation, impulsivity, self-esteem, and body dissatisfaction mediated the relationship between insecure attachment and maladaptive schemas and NSSI and ED symptoms. A further aim of the study was to assess whether the model behaved similarly across a clinical eating disorder (ED) and a community sample.Method123 females with a lifetime ED diagnosis and 531 female individuals from the community completed an online survey, which included measures assessing the variables of interest. A cross-sectional single time point analysis was used.ResultsInvariance testing indicated that the model was structurally non-invariant (different across groups). The proposed integrative model was a good fit for the ED group, but for the community sample only a revised model reached an acceptable fit. Both attachment and maladaptive schemas, included early in the model, were implicated in the pathways leading to ED and NSSI symptoms in the ED and community groups. In the community group, impulsivity, a mediator, was a shared predictor for NSSI and bulimic symptoms. No other mediating variables were shared by NSSI and ED symptoms in the two groups. Overall, the proposed model explained slightly more variance for the ED group relative to the community group in drive for thinness (R2 = .57 vs .51) and NSSI (R2 = .29 vs .24) but less variance in bulimic symptoms (R2 = .33 vs .39).ConclusionWe conclude that the current model provides only limited support for explaining the comorbidity between NSSI and ED symptoms. It is vital to consider both common (e.g., attachment and maladaptive schemas) and specific factors (e.g., impulsivity) to better understand the pathways that lead to the co-occurrence of NSSI and ED symptoms. A new integrative model assessed whether emotion dysregulation, impulsivity, self-esteem, and body dissatisfaction were mediators in the relationship between insecure attachment and maladaptive beliefs about the world and the self and subsequent eating disorder and self-harm symptoms. A further aim was to assess whether the proposed model differed between a clinical eating disorder and a community sample. All participants were female and included 123 patients with a lifetime eating disorder and 531 individuals from the community. Participating individuals completed an online survey at one timepoint, which included measures assessing the variables of interest. The findings of the current study indicated that the proposed model was a good match for the clinical eating disorder sample, but for the community sample only a revised model yielded acceptable statistical fit. Both insecure attachment and maladaptive beliefs about the world and the self, included early in the model, were indirectly related to eating disorder and self-harm symptoms for both the eating disorder and the community groups. Impulsivity, a mediator, was the only shared predictor for self-harm, and bulimic symptoms in the community group. We conclude that the current model provides only limited support for explaining the comorbidity between self-harming behaviours and disordered eating symptoms.

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Insomnia symptoms and non-suicidal self-injury in adolescence: understanding temporal relations and mechanisms.

Publications

Insomnia symptoms and non-suicidal self-injury in adolescence: understanding temporal relations and mechanisms.

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