Farsi Translation of Four Additional Items for the Addictive Features Section of the Ottawa Self-injury Inventory Version 3.1

Dear Editor,Self-harm (non‐suicidal self‐injury) is a major global health issue,1 especially among adolescents2 and psychiatric patients.3 The association of self-harm and the risk of suicide is extensively documented.1 Interest in self‐harm by both clinicians and researchers is now well-established4. This growing interest has been accompanied by the development of several psychometric instruments to examine the prevalence, frequency, and psychological functions of self-harm.5,6 One such scale is the Ottawa Self-Injury Inventory (OSI-3.1).6,7 The OSI 3.1 is a 26‐item self‐report questionnaire aimed at measuring the occurrence, frequency (eight items), types (eighteen items), and functions (seven items) of self‐harm.Recent research has examined the psychometric properties of the Persian version of the OSI-3.1)8 among a sample of 310 hospitalised patients who had been referred to Nekoei-Hedayati Hospital, Qom City, Iran, with non-suicidal self-injury. The results showed that the Persian version of the OSI 3.1 had satisfactory reliability (Cronbach’s alpha 0.71) and validity (Content Validity Index [CVI] 0.75; Content Validity Ratio [CVR] 0.79) in this sample. Moreover, it was also found that 52% of the sample reported at least one addictive characteristic. These findings are of importance to a better understanding of research and practice of self-harm in at least three potentially significant ways.