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Wang Z, Chen Y, Tao Z, Yang M, Li D, Jiang L, Zhang W. Quantifying the Importance of Non-Suicidal Self-Injury Characteristics in Predicting Different Clinical Outcomes: Using Random Forest Model. J Youth Adolesc 2024; 53:1615-1629. [PMID: 38300442 DOI: 10.1007/s10964-023-01926-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 12/03/2023] [Indexed: 02/02/2024]
Abstract
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.
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Affiliation(s)
- Zhenhai Wang
- Center for Studies of Psychological Application, School of Psychology, South China Normal University, Guangzhou, China
| | - Yanrong Chen
- Center for Studies of Psychological Application, School of Psychology, South China Normal University, Guangzhou, China
| | - Zhiyuan Tao
- Center for Studies of Psychological Application, School of Psychology, South China Normal University, Guangzhou, China
| | - Maomei Yang
- Tangxia No.2 Junior High School, Dongguan, Guangdong, China
| | - Dongjie Li
- Center for Studies of Psychological Application, School of Psychology, South China Normal University, Guangzhou, China
| | - Liyun Jiang
- Center for Studies of Psychological Application, School of Psychology, South China Normal University, Guangzhou, China
| | - Wei Zhang
- Center for Studies of Psychological Application, School of Psychology, South China Normal University, Guangzhou, China.
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Wang Z, Li D, Chen Y, Tao Z, Jiang L, He X, Zhang W. Understanding the subtypes of non-suicidal self-injury: A new conceptual framework based on a systematic review. Psychiatry Res 2024; 334:115816. [PMID: 38412712 DOI: 10.1016/j.psychres.2024.115816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 02/17/2024] [Accepted: 02/23/2024] [Indexed: 02/29/2024]
Abstract
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.
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Affiliation(s)
- Zhenhai Wang
- Center for Studies of Psychological Application, School of Psychology, South China Normal University, Guangzhou, China
| | - Dongjie Li
- Center for Studies of Psychological Application, School of Psychology, South China Normal University, Guangzhou, China
| | - Yanrong Chen
- Center for Studies of Psychological Application, School of Psychology, South China Normal University, Guangzhou, China
| | - Zhiyuan Tao
- Center for Studies of Psychological Application, School of Psychology, South China Normal University, Guangzhou, China
| | - Liyun Jiang
- Center for Studies of Psychological Application, School of Psychology, South China Normal University, Guangzhou, China
| | - Xu He
- Center for Studies of Psychological Application, School of Psychology, South China Normal University, Guangzhou, China
| | - Wei Zhang
- Center for Studies of Psychological Application, School of Psychology, South China Normal University, Guangzhou, China.
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Zelkowitz RL, Halverson TF, Patel TA, Beckham JC, Calhoun PS, Pugh MJ, Kimbrel NA. Nonsuicidal self-injury methods among U.S. Veterans: Latent class analysis and associations with psychosocial outcomes. Psychiatry Res 2023; 329:115558. [PMID: 37890405 DOI: 10.1016/j.psychres.2023.115558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 10/18/2023] [Accepted: 10/21/2023] [Indexed: 10/29/2023]
Abstract
Nonsuicidal self-injury (NSSI) is a debilitating concern among U.S. veterans, with wall/object-punching commonly endorsed as an NSSI method. We examined how this behavior relates to other NSSI methods and psychosocial outcomes. We conducted a latent class analysis (LCA) of NSSI methods among 1,138 Gulf War Era veterans, (77.9% male), 21.7% of whom endorsed lifetime NSSI. We categorized classes based on their associations with age, sex, combat and military sexual assault exposure, then examined the association of class membership with psychosocial indicators. LCA results supported four classes: 1) High punching/banging NSSI (2.5%); 2) Multimethod NSSI methods (6.3%); 3) High-risk, multimethod NSSI (3.1%); and 4) Low-risk NSSI (88.1%). Psychosocial indicators (suicide attempt, ideation, possible depressive or posttraumatic stress disorders, poor psychosocial functioning) were worse for members of the NSSI classes versus those in the low-risk group. A subset of U.S. veterans may engage in NSSI primarily via punching/banging methods. All patterns of NSSI engagement were associated with negative psychosocial outcomes relative to those in the low-risk class of the behavior.
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Affiliation(s)
- Rachel L Zelkowitz
- Women's Health Sciences Division, National Center for PTSD, VA Boston Healthcare System, Boston, MA, USA; Department of Psychiatry, Boston Chobanian & Avedisian School of Medicine, Boston, MA, USA.
| | - Tate F Halverson
- Durham Veterans Affairs Health Care System, Durham, NC, USA; VA Mid-Atlantic Mental Illness Research, Education, and Clinical Center, Durham, NC, USA
| | - Tapan A Patel
- Department of Psychology, Florida State University, Tallahassee, FL, USA
| | - Jean C Beckham
- Durham Veterans Affairs Health Care System, Durham, NC, USA; Department of Psychiatry and Behavioral Sciences, Duke University School of Medicine, Durham, NC, USA; VA Health Services Research and Development Center of Innovation to Accelerate Discovery and Practice Transformation, Durham, NC, USA
| | - Patrick S Calhoun
- Durham Veterans Affairs Health Care System, Durham, NC, USA; VA Mid-Atlantic Mental Illness Research, Education, and Clinical Center, Durham, NC, USA; Department of Psychiatry and Behavioral Sciences, Duke University School of Medicine, Durham, NC, USA; VA Health Services Research and Development Center of Innovation to Accelerate Discovery and Practice Transformation, Durham, NC, USA
| | - Mary Jo Pugh
- VA Salt Lake City Healthcare System, Salt Lake City, UT, USA; Department of Medicine, School of Medicine, University of Utah, Salt Lake City, UT, USA
| | - Nathan A Kimbrel
- Durham Veterans Affairs Health Care System, Durham, NC, USA; VA Mid-Atlantic Mental Illness Research, Education, and Clinical Center, Durham, NC, USA; Department of Psychiatry and Behavioral Sciences, Duke University School of Medicine, Durham, NC, USA; VA Health Services Research and Development Center of Innovation to Accelerate Discovery and Practice Transformation, Durham, NC, USA
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