Non-suicidal self-injury (NSSI) has been proposed as diagnostic entity and was added to the section 3 of the DSM 5. Nevertheless, little is known about the long-term course of this disorder and many studies have pointed to the fact that NSSI seems to be volatile over time. We aimed to assemble studies providing longitudinal data about NSSI and furthermore included studies using the definition of deliberate self-harm (DSH) to broaden the epidemiological picture. Using a systematic search strategy, we were able to retrieve 32 studies reporting longitudinal data about NSSI and DSH. We furthermore aimed to describe predictors for the occurrence of NSSI and DSH that were identified in these longitudinal studies. Taken together, there is evidence for an increase in rates of NSSI and DSH in adolescence with a decline in young adulthood. With regards to predictors, rates of depressive symptoms and female gender were often reported as predictor for both NSSI and DSH.

Nonsuicidal self-injury (NSSI) and suicidality are common among adolescents. School staff are often the first adults to be confronted with those behaviors. However, previous studies have shown a lack of knowledge and confidence in dealing with self-harming behaviors. Objectives of this study were to evaluate a workshop on NSSI and suicidality in adolescence for teachers, school social workers and school psychologists. In total, N = 267 school staff participated in 1 of 16 two-day workshops, which were offered in different cities in southern Germany. Pre-, post- and 6-month follow-up assessments were conducted concerning attitudes, confidence in own skills, perceived knowledge, and knowledge on NSSI and suicidality. Satisfaction with the workshop was evaluated directly after the workshop; changes in handling situations involving youth with self-harm were evaluated at follow-up. Overall, participants were very satisfied with the workshop. Few negative attitudes regarding NSSI and suicidality were prevalent before and after the workshop. Large effect sizes were found for improvement in confidence, perceived knowledge, and knowledge at postassessment, which were still present at 6-month follow-up. There were significant differences between professions, with teachers seemingly benefitting the most from the workshop. At follow-up, participants reported more changes in their own behavior than having been able to implement changes on a school level. A 2-day workshop seems to be effective in changing knowledge and confidence in school staff regarding NSSI and suicidality. Workshops catered to different professions (i.e., teachers and school psychologists) might be feasible. (PsycINFO Database Record

BackgroundWhereas non-suicidal self-injury (NSSI) and suicide attempts (SA) are rather common among adolescents, the description of risk factors has often failed to take migration into perspective. Our study aimed to describe immigration status in adolescents with regards to their lifetime history of NSSI and SA.MethodsWe carried out a population based study in a school community of ninth-graders (N = 452, mean age 14.85, SD 0.58) in southern Germany. Data were collected via adolescent self report on sociodemographic variables and on NSSI and SA using the Self Harm Behavior Questionnaire.ResultsAdolescents born outside Germany showed an elevated rate of a lifetime history of NSSI and SA. When compared to German adolescents without a (family) history of migration (NSSI 19.16%, SA 3.24%), adolescents who were born in another country had an elevated risk for NSSI (42.86%, OR 3.36) and SA (17.86%, OR 6.78), which was higher than the risk of adolescents who had at least one parent who had emigrated from another country (NSSI 30.08%, OR 2.46 and SA 8.94%, OR 4.45).ConclusionOur findings should inform intervention services and prevention programs for NSSI and suicidality in youth. Adopting such programs to include culturally sensible modules could improve the outcome in ethnically diverse adolescents.