Abstract
BackgroundPrevious research has suggested that depressive symptoms, emotional competence, and posttraumatic stress symptoms (PTSS) may mediate the association between family functioning and non-suicidal self-injury (NSSI). Therefore, this study aimed to evaluate the mediation effects of depressive symptoms, emotional competence, and COVID-related PTSS on the relationship between family functioning and NSSI in adolescents. MethodA sample of 5854 adolescents was recruited from June 16 to July 8, 2020. The data for family functioning, depressive symptoms, emotional competence, COVID-related PTSS, and NSSI behavior of adolescents were collected via self-reported questionnaires. A structural equation model was constructed to examine the relationship, and a bootstrap analysis was conducted to evaluate the mediation effects. ResultsThe reporting rate of adolescent NSSI was 30.2%. The poor family functioning was positively associated with adolescent NSSI (β = 0.130, 95% CI = 0.093–0.182), which was mediated by depression with effect size of 0.231 (95% CI = 0.201–0.257). The pathway coefficients between emotional competence and NSSI, and depression, COVID-related PTSS and NSSI, though statistically significant were unlikely to be clinically meaning with values of 0.057 and 0.015. There was no mediating effect by COVID-related PTSS. The pathways initially constructed between family functioning and COVID-related PTSS, emotional capacity and COVID-related PTSS were not been verified. LimitationsIt was unclear whether this mediational effect would be supported in a longitudinal design. The application and extension of this model toward other regions and countries, and different ages need to be further explored. ConclusionThe interventions of adolescent NSSI should focus on both the family level and individual levels. Improving family environment, screening depressive symptoms, enhancing emotional competence and lessening COVID-related PTSS may reduce NSSI.
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