Faculty of Psychology and Educational Sciences, KU Leuven, Belgium.
Faculty of Psychology and Educational Sciences, KU Leuven, Belgium.
Compr Psychiatry. 2018 Jan;80:170-178. doi: 10.1016/j.comppsych.2017.10.007. Epub 2017 Oct 20.
Non-Suicidal Self-Injury (NSSI) has emerged as an important mental-health concern. However, epidemiological features like age of onset of NSSI have remained understudied. Therefore, the current study investigated the distribution of age of onset of NSSI in pooled sample of Dutch-speaking adolescents and emerging adults using event history analysis.
Eleven datasets measuring age at first NSSI in community and clinical participants collected by researchers in the Dutch-speaking part of Belgium were pooled together. The final dataset consisted of 1973 community males, 1901 community females, and 505 clinical females. Discrete-time event history analysis was used to model the effect of gender and psychiatric disorders on the age of onset of NSSI.
Twenty-one percent of adolescents from the community samples engaged in at least one episode of NSSI by the age of 25years. Irrespective of the type of sample (community or psychiatric disorder), the probability of age of onset peaked around the age of 14-15years. A second peak was observed around the age of 20 and 24years in the community and psychiatric samples respectively.
Psychosocial interventions for prevention of NSSI should not only target adolescence through school mental health programs but also target emerging adults at the university level.
非自杀性自伤（NSSI）已成为一个重要的心理健康问题。然而，NSSI 的发病年龄等流行病学特征仍研究不足。因此，本研究使用事件历史分析调查了荷兰语青少年和成年早期人群中 NSSI 发病年龄的分布。
通过对在比利时荷兰语区的研究人员收集的社区和临床参与者首次 NSSI 年龄的 11 个数据集进行汇总，共有 1973 名社区男性、1901 名社区女性和 505 名临床女性纳入最终数据集。离散时间事件历史分析用于对性别和精神障碍对 NSSI 发病年龄的影响进行建模。
21%的社区青少年在 25 岁之前至少发生过一次 NSSI。无论样本类型（社区或精神障碍）如何，发病年龄的概率在 14-15 岁左右达到峰值。在社区和精神科样本中，另一个峰值分别出现在 20 岁和 24 岁左右。
预防 NSSI 的心理社会干预不仅应通过学校心理健康计划针对青少年，还应针对大学水平的成年早期人群。
