| 【Abstract】Background In recent years, the incidence of non-suicidal self-injury (NSSI) among adolescents has been increasing year by year. Self-esteem, alexithymia and NSSI behaviors are closely related, and alienation is related to self-esteem and alexithymia. However, there is limited research on the relationship between alienation and NSSI behaviors among adolescents in China. Objective To analyze the relationship between alienation and NSSI behavior among adolescents and to explore the influencing factors of NSSI behavior in adolescents, so as to provide references for the prevention and treatment of NSSI behavior in this population. Methods Adolescents admitted to the Department of Psychiatry and Psychology of the 923rd Hospital of the Joint Logistics Support Force of the Chinese People's Liberation Army from September 1, 2021, to March 1, 2023, who met the diagnostic criteria for NSSI in Diagnostic and Statistical Manual of Mental Disorders, 5th edition (DSM-5), were selected as the study group (n=60). Concurrently, middle school students in Nanning were recruited as the control group (n=60). Assessments were conducted using Adolescent Self Harm Scale (ASHS), Rosenberg Self-esteem Scale (RSES), Toronto Alexithymia Scale (TAS) and Adolescent Students′ Alienation Scale (ASAS). Pearson correlation analysis was employed to examine the correlations between the scale scores in the study group, and binary Logistic regression analysis was used to explore the influencing factors of NSSI behavior among adolescents. Results RSES score of the study group was lower than that of the control group (t=-7.033, P<0.05). TAS and ASAS scores of the study group were higher than those of the control group (t=5.591, 8.124, P<0.05). ASHS score was negatively correlated with RSES score (r=-0.410, P<0.01) and positively correlated with ASAS score (r=0.555, P<0.01). RSES scores of the study group were negatively correlated with TAS, ASAS and ASHS scores (r=-0.317, -0.590, -0.410, P<0.05 or 0.01). The results of binary logistic regression analysis showed that males may be more prone to NSSI behavior (OR=0.714, 95% CI: 0.042~0.709) and high alienation (OR=1.028, 95% CI: 1.013~1.043) and residing in rural areas (OR=6.692, 95% CI: 2.038~21.967) may be risk factors for NSSI behavior among teenagers. Conclusion Alienation was positively correlated with NSSI behavior in adolescents. Adolescents who are males, have a higher sense of alienation or reside in rural areas may be more prone to engaging in NSSI behavior. |