Methods Matter: Nonsuicidal Self-Injury in the Form of Cutting is Uniquely Associated with Suicide Attempt Severity in Patients with Substance Use Disorders

Quantifying the Importance of Non-Suicidal Self-Injury Characteristics in Predicting Different Clinical Outcomes: Using Random Forest Model

Existing research on non-suicidal self-injury (NSSI) among adolescents has primarily concentrated on general risk factors, leaving a significant gap in understanding the specific NSSI characteristics that predict diverse psychopathological outcomes. This study aims to address this gap by using Random Forests to discern the significant predictors of different clinical outcomes. The study tracked 348 adolescents (64.7% girls; mean age = 13.31, SD = 0.91) over 6 months. Initially, 46 characteristics of NSSI were evaluated for their potential to predict the repetition of NSSI, as well as depression, anxiety, and suicidal risks at a follow-up (T2). The findings revealed distinct predictors for each psychopathology. Specifically, psychological pain was identified as a significant predictor for depression, anxiety, and suicidal risks, while the perceived effectiveness of NSSI was crucial in forecasting its repetition. These findings imply that it is feasible to identify high-risk individuals by assessing key NSSI characteristics, and also highlight the importance of considering diverse NSSI characteristics when working with self-injurers.

Substance use disorder and lifetime suicidal behaviour: A scoping review

BACKGROUND

Suicidal behaviours are prevalent in substance use disorder (SUD) patients. These behaviours have a negative impact on the psychopathological profile of these patients. However, few studies have evaluated suicide as a continuum (i.e. starting with ideation, followed by attempts and ending with death) and its evolution during treatment. The aim of this scoping review was to explore what is known about suicidal behaviour in individuals undergoing clinical treatment for SUD.

METHODS

The PsycINFO, Web of Science (Core Collection and MEDLINE), Scopus, and Cochrane Library databases were searched. After screening the records based on eligibility and exclusion criteria, 30 studies were ultimately selected for inclusion.

RESULTS

Most of the studies were conducted in the USA and Europe. Only three studies evaluated suicidal behaviour with a specific instrument. The prevalence of suicidal ideation (SI) in people being treated for SUD ranged from 20 % to 62.2 %, and the prevalence of suicide attempts (SA) ranged from 15.8 % to 52.1 %. Only one study reported death by suicide.

CONCLUSIONS

Despite the high prevalence of suicidal behaviours and their harmful consequences, the assessment of this phenomenon is scarce and heterogeneous. There is a need to assess suicidal behaviour with standardized criteria in order to develop tailored SUD treatment.

Understanding the subtypes of non-suicidal self-injury: A new conceptual framework based on a systematic review

Non-suicidal self-injury (NSSI) is a significant public health problem, but there is no consistent evidence of its risk factors. One possibility is that there are subtypes NSSI that have different risk factors and clinical symptoms. In this review we evaluated the evidence of subtypes to determine if there were consistent subtypes of NSSI that emerged across studies. Four databases (Medline; Embase; PsycINFO; Web of Science) were searched to identify studies that used data-driven approaches and were published before November 9, 2022. There were 21 studies with 23 unique samples for review. Most of the included studies used NSSI symptoms or personal characteristics as the subtyping indicators, revealing 2-5 subtypes of NSSI. Variations in subtyping indicators, sample characteristics, and statistical methods may have contributed to the inconsistent number and characteristics of subtypes across studies. A new conceptual framework is proposed to integrate these diverse findings, highlighting the important roles of NSSI function and psychological pain in differentiating NSSI subtypes. This framework sheds light on the differences among self-injurers and offers insights for future endeavors to address the complexities of NSSI.

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.

Reporting Ethical Procedures in Suicide Prevention Research: Current Status and Recommendations

OBJECTIVE

Ethical concerns frequently arise in suicide prevention research regarding participant safety and confidentiality. Despite a substantial literature on managing and navigating ethical concerns in suicide research, little attention has been paid to the reporting of ethical procedures. Furthermore, standard procedures for reporting ethical risk management procedures have not been developed.

METHOD

A review of the current literature was performed to examine the current state of reporting of ethical procedures within suicide research. Articles published in 2020 (N = 263) from three suicide-focused publications were screened and then coded (n = 131) to identify reporting of procedures for the ethical conduct of research and suicide risk management steps taken by the research teams.

RESULTS

The majority of articles reported ethical review or approval (84.7%) and reported the use of an informed consent process (77.9%). Only 28.2% included risk mitigation procedures. Of those 29.7% of those articles reported conducting risk evaluation, 66.7% reported resource dissemination, and 51.4% reported an intervention.

CONCLUSION

As empirical support for brief interventions accrues, suicide prevention researchers should consider establishing standards for the reporting of procedures to ensure the safety of participants with suicidal risk.HighlightsReporting suicide safety protocols helps ensure high ethical standards in research.Fewer than 1/3 of articles reviewed reported risk mitigation procedures in 2020.Standard procedures for reporting safety protocols in suicide research are needed.

Hurting the Grandiose Self: Examining Presence, Frequency, and Functions of Nonsuicidal Self-Injury in Pathological Narcissism

The present study examines whether dimensions of pathological narcissism are associated with the presence, frequency, and function of nonsuicidal self-injury (NSSI). Adults (N = 252) completed questionnaires assessing narcissistic grandiosity, narcissistic vulnerability, fluctuation between these narcissistic states, and borderline personality disorder (BPD) symptoms. Those with a history of NSSI (n = 105) also reported the method, frequency, and function of their NSSI engagement. When controlling for co-occurring BPD symptoms, there were very few associations between vulnerability, grandiosity, and narcissistic fluctuation and NSSI presence and frequency. However, a clear pattern emerged regarding NSSI functions. Although vulnerability and narcissistic fluctuation were not associated with any functions of NSSI when co-occurring BPD symptoms were controlled for, grandiosity was positively associated with all interpersonal functions of NSSI (e.g., peer bonding, revenge) and negatively associated with the intrapersonal function of affect regulation. These results suggest a unique relationship between narcissistic grandiosity and NSSI that may inform clinical intervention.

Non-suicidal self-injury in Chinese population: a scoping review of prevalence, method, risk factors and preventive interventions

Non-suicidal self-injury behavior (NSSI) is a serious public health concern that requires immediate attention. Despite the high prevalence of NSSI among the Chinese population, there is a significant gap in research on the comprehensive picture of this field. Therefore, a scoping review was conducted to investigate the prevalence, methods, risk factors, and preventive intervention programs related to NSSI in China. The review found that the estimated lifetime prevalence of NSSI among Chinese youth population is alarmingly high at 24.7% (N = 1,088,433). Common methods of NSSI include scratching, hitting, and biting. Additionally, the review synthesized 249 risk factors based on the biopsychosocial-ecological framework, highlighting the urgent need for intervention. However, only 12 empirical studies focus on NSSI prevention or intervention programs were included. These findings underscore the necessity for more clinical practices and larger studies to identify effective interventions and ultimately alleviate the burden of NSSI on the Chinese population.

Funding

This review was supported by Humanity and Social Science Youth foundation of Ministry of Education (22YJCZH018), Science and Technology Innovation 2030 (STI2030-Major Projects:2021ZD0200702), National Natural Science Foundation of China (81825009), and Shuimu Tsinghua Scholar. No funding agencies were involved in the data collection, data analysis, and writing of this paper.

Predictors of Self-Harm Types in Members of Online Communities: Age As a Moderating Variable

BACKGROUND

Deliberate self-harm includes direct and indirect behaviors that cause harm to the body. Various manifestations of such behavior (e.g., non-suicidal self-injuries) are prevalent in adolescent and youth populations, and they often serve as precursors of subsequent suicidal behavior. The interpersonal dynamics that lead to self-harm behavior remain understudied. Interpersonal sensitivity, defined as an anticipation of criticism and fear of rejection in one's relationships with other people, may become one such factor.

AIM

The present study was conducted to investigate the relationship between interpersonal sensitivity, psychopathological symptoms, and types of self-harm.

METHODS

The sample (n=804, 17-35 years, M=23.3±4.6 years) was recruited in online communities. A survey developed by the authors was used to measure the types of self-harm. Other measures included the Interpersonal Sensitivity Measure and Symptom Checklist-90-R.

RESULTS

It was discovered that superficial self-injuries could be related to more severe types of self-harm, destructive for the body on the whole (e.g., risk-taking, deprivation, fasting, substance abuse). Fear of rejection and psychopathological symptoms emerged as predictors of both superficial self-injuries and self-destructive behavior. Although younger respondents (17-19 years old) were more likely to inflict on themselves superficial self-injuries, those who scored high on fear of rejection were more likely to report more severe self-destructive behavior. Acute psychological distress elevated this risk for both younger and older participants (27-35 years old).

CONCLUSIONS

The results of the study point at the important role the dynamics of interpersonal relationships plays in perpetuating self-harm.

Non-suicidal self-injury and its relation to suicide through acquired capability: investigating this causal mechanism in a mainly late-diagnosed autistic sample

BACKGROUND

Non-suicidal self-injury (NSSI) has been linked with a higher risk of suicide attempts in autistic and non-autistic people. In the general population, NSSI may confer acquired capability for suicide by eroding one's fear and avoidance of pain and death. The present study aimed to explore acquired capability as the mediator of increased suicide risk conferred by NSSI in autistic and non-autistic adults.

METHODS

Autistic and non-autistic adults (n = 314, n = 312) completed an online survey exploring lifetime suicide attempts, experience with NSSI, and acquired capability for suicide. We explored relationships between lifetime incidence of NSSI and lifetime suicide attempts via three facets of acquired capability (pain tolerance, reduced fear of death, and mental rehearsal of suicide). In self-harming participants (224 autistic and 156 non-autistic), we explored whether particular types and features of NSSI might be especially associated with capability and through that with suicide: namely engagement in scratching, cutting, and self-hitting, and engaging in more numerous forms of NSSI.

RESULTS

While a higher frequency of NSSI was associated with all three facets of acquired capability, only reduced fear of death and mental rehearsal of suicide mediated an indirect relationship with lifetime suicide attempts. NSSI also directly predicted more numerous suicide attempts. Autistic people tended towards reduced fear of death and mental rehearsal regardless of NSSI status. Among self-harming autistic and non-autistic participants, cutting and an increased number of NSSI behaviours were associated with lifetime suicide attempts directly and indirectly via acquired capability. In both groups, self-hitting was associated with lifetime suicide attempts only via acquired capability.

LIMITATIONS

Our cross-sectional methodology negates inferences of directionality. While we controlled for age, our samples were poorly matched, with the autistic group two times older on average. The autistic sample, predominantly late-diagnosed, female and highly qualified, were unrepresentative of the whole autistic community.

CONCLUSIONS

Our data suggest that acquired capability, as measured herein, is an incomplete explanation for the association between NSSI and suicide risk. A broader construct with stable and transient facets may offer greater explanatory power, but it is probable that other variables explain or provide additional means through which this association arises.

Deliberate self-harm in adolescents during COVID-19: The roles of pandemic-related stress, emotion regulation difficulties, and social distancing

The objective of this study was to conduct an ecologically valid test of etiological models of deliberate self-harm (DSH) during the COVID-19 pandemic. Using a sample of Canadian adolescents, we investigated: (1) the association between COVID-19-related stress and DSH; (2) whether emotion regulation (ER) difficulties mediated/moderated this association, including whether these effects differed by age; and (3) whether the mediating/moderating effects of ER difficulties were stronger among socially distanced youth. Canadian adolescents (N = 809) aged 12-18 were recruited on social media and completed an online survey. COVID-19-related stress was associated with recent DSH. Nonacceptance of emotional responses and limited access to ER strategies fully mediated this association. The indirect effect through nonacceptance of emotional responses was stronger among more socially distanced youth, whereas the indirect effect through limited access to ER strategies was stronger among older and more socially distanced youth. COVID-19-related stress and ER difficulties did not interact to predict DSH, nor did age or social distancing moderate these interactions. These results align with etiological models proposing central roles for stress and ER difficulties in DSH. Furthermore, this study underscores a need to support adolescents, particularly older teens with reduced in-person interactions, in adaptively coping with pandemic-related stress.