AI Insight
This study developed a predictive model to identify psychological factors associated with non-suicidal self-injury (NSSI) in adolescents by comparing 104 adolescents with NSSI to 102 healthy controls. Multivariate logistic regression analysis revealed that self-blame coping style was an independent risk factor for NSSI, while better problem-solving skills served as a protective factor. The researchers created a nomogram prediction tool that demonstrated good discriminatory ability with an area under the curve of 0.834.
Why it matters
The findings suggest that interventions targeting self-blame reduction and problem-solving skill enhancement could be effective prevention strategies for adolescent NSSI. The developed nomogram may serve as a preliminary screening tool to help clinicians identify adolescents at higher risk for self-injury behaviors.
Understand the Science
ObjectiveNon-suicidal self-injury (NSSI) is an urgent and substantial public health concern among adolescents. This study is aimed at identifying the independent psychological predictors of NSSI and developing and validating a logistic regression-based risk discrimination model focused on coping styles.MethodsA cross-sectional study involving 206 adolescents (104 with NSSI and 102 healthy controls) was conducted. All the participants provided general demographic data, and completed the Experiences in Close Relationships Inventory (ECR), the Childhood Trauma Questionnaire-Short Form Version (CTQ-SF), and the Coping Styles Questionnaire (CSQ). Univariate and multivariate logistic regression analyses were performed to identify the independent predictors of NSSI. A nomogram was constructed in accordance with the final multivariate model. Model performance was evaluated using receiver operating characteristic (ROC) curves, calibration plots, the Hosmer-Lemeshow (HL) test, and a decision curve analysis (DCA).ResultsMultivariate logistic regression revealed that a higher level of self-blame (OR = 1.062; 95% CI: 1.023–1.102; P = 0.002) was an independent risk factor, whereas a better problem-solving capacity (OR = 0.911; 95% CI: 0.867–0.957; P 0.05), and superior clinical net benefit across a wide threshold (0.01–0.99).ConclusionTargeting self-blame and enhancing problem-solving skills may be effective styles for the prevention of adolescent NSSI. As a preliminary finding, the nomogram developed in our study is a useful tool for exploratory differentiation.