Self-InjurIouS ThoughTS and BehavIorS QueSTIonnaIre-nonSuIcIdal (SITBQ- nS): developmenT and valIdaTIon of a revISed verSIon of The Self-InjurIouS ThoughTS and BehavIorS InTervIew (SITBI) for The Self-aSSeSSmenT of nonSuIcIdal Self-Injury alessandra d’agostino, raffaele pepi, antonella aportone, mar

Objective: despite the fact that nonsuicidal self-injury (nSSI) has become an important issue among clinicians and researchers all over the world, in Italy there is still a lack of instruments able to assess it. The objective of this study is to develop and validate the Self-Injurious Thoughts and Behaviors Questionnaire-nonsuicidal (SITBQ-nS), a self-report measuring the whole nSSI spectrum, that is, from ideation to act. Method: SITBQ-nS was administered to 51 adult patients recruited from public mental health services together with the millon clinical multiaxial Inventory (mcmI-III), the Beck hopelessness Scale (BhS), the deliberate Selfharm Inventory (dShI), and the nepean dysphoria Scale (ndS-I). Results: SITBQ-NS demonstrated excellent internal consistency (α=0.983). NSSI thoughts were present in 56.9% of participants, and NSSI behaviors were present in 49% of participants. Similar NSSI functions were found among participants, except for “To end suicidal ideation,” which was more common among those having nSSI thoughts (34.1%) than those exhibiting NSSI behaviors (21.6%). There were strong positive correlations between the scores of SITBQ-nS and the scores of BhS, dShI and ndS-I. also, there were weak to strong positive correlations between the scores of SITBQ-nS and some mcmI-III scales. Conclusions: The SITBQ-nS shows very good psychometric properties, being a useful and easy-to-handle instrument for measuring the whole nSSI spectrum. further research in clinical samples is needed.