ABSTRACT
ObjectiveTo explore the characteristics of impulsivity in adolescent depressive disorder patients with non-suicidal self-injury （NSSI） behavior， analyze the relationship between NSSI behavior and impulsivity， so as to identify patients with NSSI behavior and provide targeted intervention at early stages. MethodsA total of 53 adolescent patients with depressive disorder who were hospitalized for the first hospitalization in Shenzhen Kangning Hospital were enrolled， diagnosed using Diagnostic and Statistical Manual of Mental Disorders， fifth edition （DSM-5）. Thereafter， the adolescents were divided into NSSI group （n=30） and non-NSSI group （n=23）. Hamilton Depression Scale-17 item （HAMD-17）， Adolescents Self-Harm Scale and Barratt Impulsivity Scale （BIS-11） were used to evaluate the severity of depression， NSSI and impulsivity. ResultsCompared with the non-NSSI group， the NSSI group scored higher on HAMD-17 ［（25.50±4.10） vs. （21.43±4.64）， t=3.379， P<0.01］， motor impulsiveness of BIS-11 ［（51.67±15.95） vs. （38.70±14.90）， t=3.018， P<0.01］， cognitive impulsiveness ［（52.75±13.22） vs. （43.37±18.40）， t=2.161， P<0.05］， non-planning impulsiveness ［（68.00±15.32） vs. （50.76±21.35）， t=3.424， P<0.01］ and BIS-11 ［（57.42±11.08） vs. （44.27±14.83）， t=3.695， P<0.01］. Within NSSI group， the score of Adolescents Self-Harm Scale was positively correlated with the score of motor impulsiveness in BIS-11 （r=0.691， P<0.01）. Binary Logistic regression analysis showed that HAMD-17 score （β=0.172， OR=1.187， 95% CI： 1.007~1.400） and non-planning impulsiveness of BIS-11 （β=0.044， OR=1.045， 95% CI： 1.002~1.091） were associated with NSSI in adolescent patients with depressive disorder （P<0.05）. ConclusionThe severity of depressive symptoms and non-planning impulsiveness may be risk factors for NSSI behavior in adolescent patients with depressive disorder.