Abstract
Non-suicidal self-injury (NSSI) Disorder has been included in DSM-5 for the first time as a disorder requiring further research. The present study investigated DSM-5 criteria for NSSI Disorder in a community sample of adults and provided an initial investigation of differences between those with and without a diagnosis of NSSI Disorder and NSSI history. Participants over the age of 18 (N=548) completed an online survey using Amazon׳s MTurk. A lifetime history of NSSI was reported by 23% of the sample. Nearly 3% of the total sample and 11.2% of those with an NSSI history met criteria for NSSI Disorder. Those with NSSI Disorder were similar to participants with an NSSI history who did not meet criteria for the disorder on NSSI frequency and methods, and age of NSSI onset, use of coping strategies, and borderline symptoms, but they differed on automatic reinforcement of the behavior and reported interference with functioning. Endorsement of specific NSSI Disorder criteria, potential implications for the diagnosis, and avenues for future research are discussed.
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