Adolescent non-suicidal self-injury (NSSI) in German-speaking countries: comparing prevalence rates from three community samples

The pooled prevalence and influential factors of non-suicidal self-injury in non-clinical samples during the COVID-19 outbreak: A meta-analysis

BACKGROUND

COVID-19 has had an enormous impact on the mental health of people around the world, particularly adolescents. Non-suicidal self-injury (NSSI) is one of the most prominent and dangerous behaviors associated with suicide. However, few meta-analyses of the NSSI prevalence have ever been conducted since the COVID-19 outbreak. Here, we conducted a meta-analysis to estimate the pooled prevalence and elucidate the influencing factors for NSSI.

METHODS

We searched PubMed, Web of Science, Embase, APA PsycINFO, CNKI and Wanfang Database for relevant literature published before April 2022. Pooled prevalence and 95 % confidence interval (CI) were used to assess NSSI prevalence. Subgroup and meta-regression analyses were performed to clarify the potential influencing factors.

RESULTS

A total of 15 studies with 24,055 participants were eventually included. The results showed that the pooled overall prevalence of NSSI among overall samples during the COVID-19 pandemic was 22.5 % (95 % CI: 17.2 % to 28.9 %). Subgroup and meta-regression analyses revealed that the crucial influencing factors for NSSI included gender, age, regional distribution, and suicidal ideation. Specifically, the NSSI prevalence among adolescents and adults during the pandemic was 32.40 % and 15.70 %, respectively. Most importantly, gender is a significant influencing factor for NSSI among adolescents.

CONCLUSIONS

The pooled prevalence of NSSI during the COVID-19 outbreak has surged to alarming heights, especially among adolescents. The prevalence of NSSI may be influenced by complex factors such as gender and age. Therefore, it is critical to pay attention to NSSI behaviors in the adolescent population, particularly male adolescents who appear to be susceptible.

Internalized Homophobia, Body Dissatisfaction, Psychological Distress, and Nonsuicidal Self-Injury Among Young Sexual Minority Men in China

Purpose: Sexual minority men (SMM) have been shown to be at high risk of nonsuicidal self-injury (NSSI). Internalized homophobia, body dissatisfaction, and psychological distress have been found to be related to NSSI among SMM, but few studies have focused on the mechanisms underlying these associations. Thus, the current study was conducted to examine the association between internalized homophobia and NSSI, and whether body dissatisfaction and psychological distress mediate this relationship among young SMM in China. Methods: In total, 264 young SMM (mean age, 22.00 ± 2.86 years) in Henan Province, China, participated in the study. A set of questionnaires were used to assess participants' internalized homophobia, body fat dissatisfaction, muscularity dissatisfaction, psychological distress, and NSSI. Correlation and mediation analyses were used to examine the data. Results: Internalized homophobia correlated positively with NSSI (r = 0.24, p < 0.001) among young SMM in China. This relationship was partly mediated by body fat dissatisfaction, muscularity dissatisfaction, and psychological distress. Conclusion: The study findings suggest that internalized homophobia is a risk factor for NSSI among young SMM in China, and that body fat and muscle dissatisfaction and psychological distress underlie the association between internalized homophobia and NSSI. In developing interventions targeting NSSI among SMM, the findings of the current study should be considered to improve intervention outcomes.

Body dissatisfaction and non-suicidal self-injury among Chinese young adults: a moderated mediation analysis

OBJECTIVE

Extensive evidence from Western societies supports the role for body dissatisfaction in the etiological models of non-suicidal self-injury (NSSI). However, research of the underlying mechanisms of this relationship has been limited, especially in China. Therefore, the aim of this study was to examine the association between body dissatisfaction and NSSI among college students in China. Possible mediating roles for psychological distress and disordered eating, as well as a moderating role for self-compassion, were also examined.

METHODS

College students (n = 655, M_age = 20.32 years, SD = 1.02) were recruited from Henan province, China. Each participant completed questionnaires regarding body dissatisfaction, psychological distress, disordered eating, and self-compassion.

RESULTS

A close to medium positive relationship between body dissatisfaction and NSSI was revealed with r = 0.24 (p < .001). The relationship was found to be fully mediated by psychological distress and disordered eating. The mediation role for disordered eating was found to be further moderated by self-compassion, suggesting that self-compassion acted as a buffer against the relationship between disordered eating and NSSI.

CONCLUSION

These findings indicate that body dissatisfaction, psychological distress, disordered eating, and self-compassion may play important roles in Chinese young adults' NSSI. Researchers and practitioners need to pay closer attention to the underlying mechanisms of how body dissatisfaction links to NSSI to deepen the understanding of their linkage as well as to provide appropriate interventions.

LEVEL OF EVIDENCE

Level V, cross-sectional descriptive study.

Non-suicidal self-injury and its co-occurrence with suicidal behavior: An epidemiological-study among adolescents and young adults

OBJECTIVE

Non-suicidal self-injury (NSSI) comprising thoughts and behaviors is common and often co-occurring with suicidal behavior like ideation, plan, and attempt. As limited data are available for adolescents and young adults, this study aims to present prevalence estimates for lifetime NSSI, its co-occurrence with suicidal behavior, conditional probabilities and their association with socio-demographic characteristics, severity characteristics of suicidal behavior, and health service utilization.

METHOD

The epidemiological Behavior and Mind Health (BeMIND) study assessed in 2015/16 a random-community sample of N = 1180 aged 14-21 years from Dresden, Germany, regarding lifetime NSSI via self-administered questionnaire and suicidal behaviors via standardized interview.

RESULTS

Any lifetime NSSI was reported by 19.3% (thoughts: 18.0%, behaviors: 13.6%) of the sample with higher prevalence in females (OR = 2.7, 95% CI 1.9-3.8, P < 0.001). Lifetime prevalence of co-occurring NSSI and suicidal behavior was 7.7%. Females had a 3.3- to 8.8-fold odds of co-occurrence than males. Among those with any NSSI, 39.6% endorsed suicidal behavior, and 66.3% of those with any suicidal behavior reported NSSI. 42.3% of those with any NSSI reported to have used mental healthcare services at any time during their life with higher rates in those with co-occurring suicidal behavior (62.3%).

CONCLUSION

Non-suicidal self-injury and co-occurring suicidal behavior is common in adolescents and young adults-especially females. The limited utilization of mental healthcare services underpins the need for improving recognition of NSSI and suicidal behavior as well as the accessibility of mental healthcare services during adolescence and emerging adulthood.

Anti-Suicide Function of Nonsuicidal Self-Injury in Female Inpatient Adolescents

BACKGROUND

There have been numerous studies investigating the relationship between nonsuicidal self-injury (NSSI) and suicidality. On the one side, NSSI is an important risk factor for suicidality, including suicidal thoughts and behaviors. On the other side, it has been suggested that one function of NSSI might be as a coping mechanism that can help individuals in the short term avoid suicide. The present study investigated the relationship between suicidality and NSSI in female inpatient adolescents, focusing on NSSI as an anti-suicide strategy.

METHODS

Subjects were 56 female adolescents, aged 12-18 years (M = 15.95 years, SD = 1.27), recruited from different inpatient child and adolescent psychiatric units. All participants fulfilled the DSM-5 research criteria for nonsuicidal self-injury disorder (NSSI-D). To assess suicidality, NSSI-D, and current and past diagnoses, a structured clinical interview was conducted.

RESULTS

NSSI as a short-term coping strategy for avoiding suicide was indicated by one third (32.1%) of the participants. Before participants engaged in NSSI, the anti-suicide function was reported more frequently than reducing interpersonal problems (d = -.59). Getting relief from negative emotions and inducing positive feelings were reported at the same frequency as avoiding suicide before NSSI. Participants engaging in NSSI to avoid suicide and those reporting other functions did not significantly differ regarding other NSSI characteristics, suicidality, or psychopathology. Results indicate that the anti-suicide function significantly predicts the duration of current suicidal ideation (β = .557).

CONCLUSION

This study provides preliminary support for the idea that NSSI is frequently used by female adolescents with NSSI-D to avoid suicide. Given the high co-occurrence of NSSI and suicidality, our results underline the importance of clinical assessment of suicidality and several NSSI functions, including the anti-suicide function, in adolescents with NSSI.

Non-suicidal self-injury in Shanghai inner bound middle school students

Background

Non-suicidal self-injury (NSSI) behaviour is very common among adolescents. Its prevalence and behavioural characteristics may vary according to regional and cultural differences. Investigation of NSSI locations and diagnosis of adolescents with NSSI are relatively lacking in China.

Aims

The study objective was to determine the prevalence and features of NSSI among middle school students in Shanghai.

Methods

The participants were from grade 6 to 8 selected from three junior schools in Jing’an District. Consenting students completed the Ottawa Self-Injury Inventory to determine the prevalence and characteristics of NSSI. Those who indicated NSSI within the past month were administered the Mini-International Neuropsychiatric Interview for Children and Adolescents to assess for emotional disorders.

Result

The result shows 510 participants (21.7%; mean age 13.51 (0.97) years old; 56.7% female) reported at least one instance of NSSI during the previous 12 months. NSSI was significantly more common in girls than boys (24.9% vs 18.5%; χ²=14.03, p=0.00). Commonly reported reasons for NSSI were for internal and external emotion regulation (87.9%, 82.3%) and social influence (57.8%). Anxiety disorders were the most common (28.9%) disorder associated with NSSI.

Conclusion

The rate of NSSI of middle school students in Shanghai inner bound is similar to those reported in North American and European youth. It is essential that school mental health professionals are aware of how to manage NSSI within the school setting.

Nicht-suizidales selbstverletzendes Verhalten (NSSV) im Jugendalter: Klinische Leitlinie zur Diagnostik und Therapie

Zusammenfassung. Hintergrund: Nicht-suizidales selbstverletzendes Verhalten (NSSV) ist ein häufiges, klinisch relevantes Phänomen im Jugendalter, das sich in Zusammenhang mit verschiedenen psychischen Störungen beobachten lässt. Deutschland gehört mit einer Lebenszeitprävalenz von 25–35 % bei Jugendlichen innerhalb Europas zu den Ländern mit den höchsten Prävalenzraten an NSSV. Bislang existierte eine zuletzt im Jahr 2006 überarbeitete AWMF-Leitlinie zu selbstverletzendem Verhalten und stereotypen Bewegungsstörungen, deren Gültigkeit 2011 abgelaufen war.

Methoden: Die Leitliniengruppe setzte sich aus elf medizinisch, psychologisch bzw. psychotherapeutischen Fachgesellschaften und zwei Interessensvertretungen aus Angehörigen- bzw. Präventionsprojekten zusammen. Die Leitlinie wurde in zwei Konferenzen, darauf aufbauenden Literaturrecherchen und einer abschließenden Konsensuskonferenz erarbeitet. Der Algorithmus wurde in drei Delphi-Runden verabschiedet.

Ergebnisse: Während die Datenlage zur Epidemiologie und zur Diagnostik von NSSV gut ist, sind noch immer wenige Studien zum Langzeitverlauf und zur psychotherapeutischen sowie zum Stellenwert einer psychopharmakologischen, adjuvanten Behandlung von NSSV im Jugendalter verfügbar. Berufsgruppenübergreifend wurde auch das Vorgehen im Falle der Notwendigkeit einer somatischen Versorgung bei NSSV thematisiert.

Schlussfolgerungen: In Anbetracht der heterogenen Evidenzlage wurden, um die klinische Anwendbarkeit der Leitlinie zu gewährleisten, die wesentlichen Punkte zur Behandlung von NSSV im Jugendalter in einer Konsensuskonferenz abgestimmt. Forschungsdefizite zeigen sich sowohl im Bereich präventiver als auch klinischer Interventionen.

The influence of personality traits and emotional and behavioral problems on repetitive nonsuicidal self-injury in a school sample

BACKGROUND

Nonsuicidal self-injury (NSSI) is highly prevalent among adolescents and associated with various mental health problems and suicidality. Previous studies have found that certain personality traits are related to NSSI behavior, however only few studies examined personality traits in adolescents with NSSI. Our study aimed to assess the relationship between personality traits and emotional and behavioral problems in predicting repetitive NSSI among adolescents from a school sample.

METHODS

Four hundred and forty-seven students (M=14.95years, SD=0.74, 52% male) completed self-report measures on NSSI, personality traits, and emotional and behavioral problems.

RESULTS

The past year prevalence of occasional and repetitive NSSI was 4.9% and 6.3% respectively. Repetitive NSSI was significantly associated with female gender, higher levels of age, novelty seeking, harm avoidance, self-transcendence, antisocial behavior, and positive self and lower levels of persistence and self-directedness in univariate analyses. However, multivariate logistic regression analyses indicated that only high levels of antisocial behavior and low levels of self-directedness significantly predicted repetitive NSSI.

CONCLUSIONS

The association between a lack of self-directedness and NSSI emphasizes the significance of targeting self-directedness in psychotherapy by strengthening self-awareness, affect tolerance and emotion regulation, as well as establishing and pursuing long-term goals.

Diagnostik und Behandlung nichtsuizidaler Selbstverletzungen im Kindes- und Jugendalter

Zusammenfassung. Theoretischer Hintergrund: Nichtsuizidales Selbstverletzendes Verhalten (NSSV) ist insbesondere im Jugendalter häufig und klinisch bedeutsam. Die Entwicklung einer konsensbasierten Leitlinie verfolgt das Ziel, die Diagnostik und die Behandlung von NSSV zu optimieren und Impulse für die Forschung zu geben. Als Leitlinie der Arbeitsgemeinschaft der Wissenschaftlichen Medizinischen Gesellschaften (AWMF) wurde diese erste Leitlinie zu NSSV verabschiedet und publiziert. Fragestellung und Methode: Die wichtigsten Empfehlungen zur Diagnostik und Behandlung von NSSV werden zusammengefasst und Forschungslücken aufgezeigt. Ergebnisse: In der Diagnostik von NSSV ist insbesondere die Einschätzung der Suizidalität zu berücksichtigen. Als erster Schritt ist die somatische Abklärung der Verletzungen und ggf. eine medizinische Erstversorgung zu nennen. Für die Evaluation des NSSV sind Häufigkeit, Methoden, Schmerzempfinden, Motive, Impulsivität als auch weitere familiäre und außerfamiliäre Einflussfaktoren zu erheben. Den Schwerpunkt der Behandlung bildet die Psychotherapie, insbesondere die kognitive Verhaltenstherapie, die Dialektisch-Behaviorale Therapie für Adoleszente und die Mentalisierungsbasierte Therapie für Adoleszente. Eine evidenzbasierte Indikation zur spezifischen Pharmakotherapie von NSSV existiert nicht. Schlussfolgerung: Die Leitlinie umfasst evidenz- und konsensusbasierte Empfehlungen zur Diagnostik und Therapie von NSSV. Die Implementierung soll zu einer Verbesserung der Versorgung von Patienten mit NSSV dienen.

Treating nonsuicidal self-injury (NSSI) in adolescents: consensus based German guidelines

BACKGROUND

Nonsuicidal self-injury (NSSI) is a frequent and clinically relevant phenomenon in adolescence. Within Europe, Germany has one of the highest prevalence rates in youth with lifetime prevalence ranging between 25 and 35%. However, treatment guidelines for NSSI are not yet available.

METHODS

Consensus based clinical guidelines were created by a working group consisting of members of eleven medical, psychological or psychotherapeutic professional national associations, and two members of patient self-help and prevention groups. The guidelines were developed in consecutive expert meetings and literature searches and agreed on in a final consensus conference.

RESULTS

Given that evidence on both the psychotherapeutic and psychopharmacological treatment of NSSI is limited, a consensus based approach was chosen. The consensus indicated that due to the accumulating evidence on the efficacy of psychotherapeutic approaches, core elements of psychotherapy should be provided in treatment of NSSI. A specific psychopharmacological therapy of NSSI cannot be recommended. In addition, the guidelines provide recommendations for surgical intervention of NSSI.

CONCLUSIONS

In accordance with the heterogeneous level of evidence, recommendations for the clinical management of NSSI in adolescence were made during a consensus conference after reviewing available literature. There is still a lack of knowledge on prevention as well as clinical interventions, which needs to be addressed by further clinically relevant studies.

The prevalence of Nonsuicidal Self-Injury (NSSI) in a representative sample of the German population

BACKGROUND

Non-suicidal self-injury (NSSI) is a proposed new "condition for further study" in the DSM-5. To date no prevalence data has been available on this diagnostic entity from a representative sample of the general population.

METHODS

A representative sample of the German population (N = 2509, mean age = 48.8 years, SD = 18.1, female 55.4 %) completed the NSSI section of the German version of the Self-Injurious Thoughts and Behaviors Interview (SITBI-G).

RESULTS

A history of NSSI at least once during lifetime was reported by 3.1 % of all participants, with higher lifetime prevalence rates in younger age groups. DSM-5 NSSI disorder criteria were met by 0.3 %. The most common function of NSSI was automatic negative reinforcement (e.g. to alleviate negative feelings).

CONCLUSIONS

To the best of our knowledge, this is the first study reporting rates for the proposed NSSI category in DSM-5 from a representative sample of the general population. In comparison to findings from community samples of adolescents, adults seem to have lower lifetime prevalence rates of NSSI, thus making it necessary to emphasize prevention and treatment efforts in younger age groups.

Prevalence and Correlates of Self-Harm in the German General Population

The study aimed at evaluating the psychometric properties of the German version of the Self- Harm Inventory (SHI) and examining the lifetime prevalence and correlates of self-harm in a representative German population sample (N = 2,507; age mean = 48.79, SD = 18.11; range 14 to 94 years; 55.5% women) using the SHI. All participants answered the German SHI, the short form of the Barratt Impulsiveness Scale (BIS-15), the ultra-brief Patient Health Questionnaire for Depression and Anxiety (PHQ-4), and provided sociodemographic information. The one-factorial structure of the SHI was replicated using a confirmatory factor analysis. Internal consistency coefficients were sufficient and in line with previous studies. Almost half of the sample (49%) acknowledged at least one self-harming behavior over the life-span, most frequently indirect forms of self-harm. The rate of participants who engaged in at least one SHI behavior was higher among men than women (51.6% vs. 46.9%, respectively, χ²= 5.38, p = 0.020). Higher SHI scores were related to younger age, male gender, living alone, more symptoms of anxiety and depression (PHQ-4), higher impulsivity scores (BIS-15), and suffering from obesity grade 2. Women engaged more often in discreet forms of self-harm than men, e.g., preventing wounds from healing, exercising an injury, starving, and abusing laxatives. In terms of other indirect self-harming behaviors, men admitted more often driving recklessly, being promiscuous and losing a job on purpose, while women reported more frequently engaging in emotionally abusive relationships. With respect to direct self-harm, women were more likely to endorse suicide attempts and cutting, while men admitted more often head-banging. The findings suggest that self-harm constitutes a common problem. Future longitudinal studies are required to examine the natural course, sociodemographic and psychopathological risk factors, as well as possible time-trends of self-harming behaviors in more depth.

Immigration as risk factor for non-suicidal self-injury and suicide attempts in adolescents in Germany

BACKGROUND

Whereas 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.

METHODS

We 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.

RESULTS

Adolescents 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).

CONCLUSION

Our 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.

Parenting behavior in families of female adolescents with nonsuicidal self-injury in comparison to a clinical and a nonclinical control group

BACKGROUND

Nonsuicidal self-injury (NSSI) is often accompanied by dysfunctional familial relationships. Problems within the family are also frequent triggers for NSSI.

METHODS

The current study investigated the parenting behavior in families of 45 female adolescents with NSSI disorder, 27 adolescents with other mental disorders (clinical controls, CCs), and 44 adolescents without mental disorders (nonclinical controls, NCs). The adolescents and their parents (92 mothers, 24 fathers) were surveyed using self-report measures. The parenting dimensions warmth and support, psychological control, and behavioral control (demands, rules, and discipline), as well as parental psychopathology and parental satisfaction were assessed.

RESULTS

Adolescents with NSSI disorder reported significantly less maternal warmth and support than NCs (d = .64); this group difference was not evident in mothers' reports. No group differences emerged regarding adolescent-reported paternal parenting behavior. Mothers of adolescents with NSSI reported higher depression, anxiety, and stress scores than mothers in the NC group and less parental satisfaction than mothers in both control groups (CC and NC).

CONCLUSIONS

Given the association between NSSI, low levels of adolescent-reported maternal warmth and support and low levels of mother-reported parental satisfaction, clinical interventions for adolescents with NSSI should focus on improving family communication and interaction.

Nonsuicidal Self-Injury in Adolescents

Abstract. Nonsuicidal self-injury (NSSI) is a prevalent, pervasive, clinically significant behavior in adolescents, frequently associated with serious social, physical, and psychological consequences. It is characterized by high comorbidity with various disorders. Therefore, NSSI has been included as a research diagnosis in the Diagnostic and statistical manual of mental disorders (5th ed., American Psychiatric Association (APA; 2013) ; DSM-5; Section 3), as a condition requiring further study for possible future official adoption. This is a positive step toward providing researchers with a uniform definition and criteria. This state-of-the-art article gives an overview of prevalence rates, comorbidity, clinical correlates, functions, and risk factors as well as treatment and dealing with adolescents with NSSI and their Internet activities. Furthermore, the association and differences between NSSI and suicidality as well as borderline personality disorder are reviewed. The article concludes with future directions for research, for example, the dimensional approach to classification of the Research Domain Criteria project.

Non-Suicidal Self-Injury among Adolescents in Amman, Jordan

While previous research has demonstrated cross-national differences in non-suicidal self-injury (NSSI), most studies to date have taken place in North America. The present study investigated the prevalence and characteristics of NSSI in a sample of 952 Jordanian adolescents (49.8% female) between the ages of 11-19 years. Participants completed a screening measure to assess occurrence of NSSI and its characteristics. Results indicate an overall lifetime prevalence of 22.6% (n = 215), with significantly more males (26.98%, n = 129) than females (18.14%, n = 86) reporting having engaged in NSSI at least once in their lifetime. This study provides empirical evidence that adolescent engagement in NSSI occurs at similar prevalence levels in Jordan, relative to North American samples, whereas gender comparisons of prevalence and characteristics revealed several differences.

Nonsuicidal self-injury: an emotion regulation perspective

BACKGROUND

Nonsuicidal self-injury (NSSI) is widely thought to serve an emotion-regulatory function.

METHOD

The focus of the present paper is to provide a conceptual framework for understanding how NSSI might modify a person's emotions.

RESULTS

Drawing upon the process model of emotion regulation, we argue that 5 families of emotion regulation strategies may be engaged by NSSI. Individuals may engage in NSSI as an alternative to more distressing situations. They also may use NSSI to modify their social environment. Individuals may shift their attention away from unpleasant emotions or thoughts via NSSI. NSSI may change cognitions about the self via self-punishment or transformation of the self from higher-order to lower-order awareness. NSSI may also bring about various physiological effects, such as changes in endogenous opioids or parasympathetic nervous system activation, as a way of modulating emotional responses.

CONCLUSION

Simply labeling NSSI as 'emotion regulatory' does not tell us precisely what is going on. This is because at any given moment, NSSI can serve to regulate emotions in many different ways. One key challenge is to clarify the precise functions NSSI may be serving for a given individual in a particular context.

Proposed Diagnostic Criteria for the DSM-5 of Nonsuicidal Self-Injury in Female Adolescents: Diagnostic and Clinical Correlates

Nonsuicidal self-injury (NSSI) is included as conditions for further study in the DSM-5. Therefore, it is necessary to investigate the proposed diagnostic criteria and the diagnostic and clinical correlates for the validity of a diagnostic entity. The authors investigated the characteristics of NSSI disorder and the proposed diagnostic criteria. A sample of 73 female inpatient adolescents and 37 nonclinical adolescents (aged 13 to 19 years) was recruited. Patients were classified into 4 groups (adolescents with NSSI disorder, adolescents with NSSI without impairment/distress, clinical controls without NSSI, and nonclinical controls). Adolescents were compared on self-reported psychopathology and diagnostic cooccurrences. Results indicate that adolescents with NSSI disorder have a higher level of impairment than adolescents with other mental disorders without NSSI. Most common comorbid diagnoses were major depression, social phobia, and PTSD. There was some overlap of adolescents with NSSI disorder and suicidal behaviour and borderline personality disorder, but there were also important differences. Results further suggest that the proposed DSM-5 diagnostic criteria for NSSI are useful and necessary. In conclusion, NSSI is a highly impairing disorder characterized by high comorbidity with various disorders, providing further evidence that NSSI should be a distinct diagnostic entity.

Proposed Diagnostic Criteria for the DSM-5 of Nonsuicidal Self-Injury in Female Adolescents: Diagnostic and Clinical Correlates

Nonsuicidal self-injury (NSSI) is included as conditions for further study in the DSM-5. Therefore, it is necessary to investigate the proposed diagnostic criteria and the diagnostic and clinical correlates for the validity of a diagnostic entity. The authors investigated the characteristics of NSSI disorder and the proposed diagnostic criteria. A sample of 73 female inpatient adolescents and 37 nonclinical adolescents (aged 13 to 19 years) was recruited. Patients were classified into 4 groups (adolescents with NSSI disorder, adolescents with NSSI without impairment/distress, clinical controls without NSSI, and nonclinical controls). Adolescents were compared on self-reported psychopathology and diagnostic cooccurrences. Results indicate that adolescents with NSSI disorder have a higher level of impairment than adolescents with other mental disorders without NSSI. Most common comorbid diagnoses were major depression, social phobia, and PTSD. There was some overlap of adolescents with NSSI disorder and suicidal behaviour and borderline personality disorder, but there were also important differences. Results further suggest that the proposed DSM-5 diagnostic criteria for NSSI are useful and necessary. In conclusion, NSSI is a highly impairing disorder characterized by high comorbidity with various disorders, providing further evidence that NSSI should be a distinct diagnostic entity.