Application Research of "Internet+" Dialectical Behavior Therapy Intervention Mode in Adolescent Non-suicidal Self-injury Intervention

Background Adolescent non-suicidal self-injury has become an increasingly serious mental health problem, and its course is protracted, causing serious burdens to patients, families and society. Intervention of non-suicidal self-injury in adolescents requires a comprehensive intervention model, and the practice of online intervention management in China is still in its infancy. Objective To investigate the intervention effect of "Internet+" dialectical behavior therapy (DBT) on suicidal ideation, cognitive emotion regulation, and alleviation of depression in adolescent patients with non-suicidal self-injury. Methods A total of 120 adolescent patients with non-suicidal self-injury who were discharged from the Second Affiliated Hospital of Xinxiang Medical University from May 2021 to May 2022 were selected and randomly divided into the control group (n=60) and intervention group by randomized controlled single-blind method (n=60). The control group received drug intervention, telephone follow-up and psychologica