Department of Psychology, University of Denver, Denver, Colorado 80208, USA.
Pediatrics. 2012 Jul;130(1):39-45. doi: 10.1542/peds.2011-2094. Epub 2012 Jun 11.
The goal was to assess the rate and behavioral methods of nonsuicidal self-injury (NSSI) in a community sample of youth and examine effects of age and sex.
Youth in the third, sixth, and ninth grades (ages 7-16) at schools in the community were invited to participate in a laboratory study. A total of 665 youth (of 1108 contacted; 60% participation rate) were interviewed about NSSI over their lifetime via the Self-Injurious Thoughts and Behaviors Interview.
Overall, 53 (8.0%) of the 665 youth reported engaging in NSSI; 9.0% of girls and 6.7% of boys reported NSSI engagement; 7.6% of third-graders, 4.0% of sixth-graders, and 12.7% of ninth-graders reported NSSI engagement. There was a significant grade by gender interaction; girls in the ninth grade (19%) reported significantly greater rates of NSSI than ninth-grade boys (5%). Behavioral methods of NSSI differed by gender. Girls reported cutting and carving skin most often, whereas boys reported hitting themselves most often. Finally, 1.5% of youth met some criteria for the proposed fifth edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5) diagnosis of NSSI.
Children and adolescents engage in NSSI. Ninth-grade girls seem most at risk, as they engage in NSSI at 3 times the rate of boys. Behavioral methods of NSSI also vary by grade and gender. As possible inclusion of an NSSI diagnosis in the fifth edition of the DSM-5 draws near, it is essential to better understand NSSI engagement across development and gender.
评估社区青少年样本中非自杀性自伤（NSSI）的发生率和行为方式，并探讨年龄和性别的影响。
邀请社区学校的三、六、九年纪（7-16 岁）学生参加实验室研究。通过《自伤性思维和行为访谈》对 665 名青少年进行了一生中 NSSI 的访谈。
共有 53 名（665 名青少年的 8.0%）青少年报告有过 NSSI；女生中 9.0%、男生中 6.7%报告有过 NSSI；三年级 7.6%、六年级 4.0%、九年级 12.7%报告有过 NSSI。年级与性别之间存在显著的交互作用；九年级女生（19%）报告的 NSSI 发生率明显高于九年级男生（5%）。NSSI 的行为方式因性别而异。女生报告最常割伤和划伤皮肤，而男生报告最常击打自己。最后，1.5%的青少年符合拟议的《精神疾病诊断与统计手册》第五版（DSM-5）NSSI 诊断标准。
儿童和青少年会有 NSSI。九年级女生似乎风险最高，她们的 NSSI 发生率是男生的 3 倍。NSSI 的行为方式也因年级和性别而异。随着第五版 DSM-5 中可能包含 NSSI 诊断，了解整个发育过程和性别中 NSSI 的发生情况至关重要。
