Relationships among functions of non-suicidal self-injury,addictions and neuroticism personality in adolescents and young adults with mental disorders
Objective:To explore relationships among functions of non-suicidal self-injury(NSSI),addictions of NSSI and neuroticism personality in adolescents and young adults with mental disorders.Methods:A total of 305 inpatients aged 16-25 years old with depressive disorder,bipolar disorder or eating disorder according to diagnostic criteria in the International Statistical Classification of Diseases and Related Health Problems,Tenth Revision(ICD-10)who reported lifetime NSSI were recruited.The subscale of function and subscale of addiction in the Ottawa self-injury inventory(OSI)were used to assess the functions and addictions of NSSI.The NEO Five Factor Inven-tory(NEOFFI)were used to assess the neuroticism personality.Results:There were significant moderate positive correlations among scores of NSSI functions,NSSI addictions and neuroticism personality(r=0.32～0.53,P＜0.001).Neuroticism played a moderating role between functions of NSSI and addictions of NSSI(β=0.60,0.49,0.37,Ps＜0.001).Functions of NSSI played a partial mediating role between neuroticism and addictions of NSSI(β=0.15,P＜0.001).The mediation effect accounted for 49.4％of the total effect.Conclusion:The higher the neuroticism of adolescents and young adults with mental disorders,the stronger the correlation between functions of NSSI and addictions of NSSI.Neuroticism may affect addictions of NSSI indirectly by strengthening NSSI function.
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