INTRODUCTION Bullying victimization has consistently been highlighted as a risk factor for self-injurious thoughts and behaviors (SITBs) in young people. This systematic review of prospective, community-based studies explored associations between bullying victimization (traditional/face-to-face and cyber) across the full spectrum of self-harm and suicidality, in children and young people aged up to (and including) 25 years. Importantly, associations by sex/gender were explored. METHODS MEDLINE, Embase, PsycINFO, CINAHL and Scopus were searched for articles meeting the inclusion criteria. Articles were screened by title, abstract and full text. Quality appraisal was performed using the Newcastle-Ottawa Scale for cohort studies. Data were synthesized narratively. The protocol is registered on PROSPERO (CRD42021261916) and followed PRISMA 2020 guidelines. RESULTS A total of 35 papers were included, across 17 countries. Results were presented by bullying type: traditional/face-to-face (n = 25), cyber (n = 7) and/or an aggregate of both types (n = 7). Outcomes included suicidal ideation (n = 17), self-harm (n = 10), suicide attempt (n = 4), NSSI (n = 4), other (n = 7). Studies measured outcomes in under 18s (n = 24), 18-25-year-olds (n = 8) and both under 18s and 18-25-year-olds (n = 3). Studies exploring the role of sex/gender (20%) found some interesting nuances. CONCLUSIONS Some weak to strong associations between bullying and SITBs were found yet conclusions are tentative due to study heterogeneity (e.g., methods used, conceptualizations and operationalisations of exposures/outcomes). Future research should address methodological issues raised in this review, and further explore gender differences in bullying, including by bullying sub-types (e.g., overt or relational) and victim status (e.g., victim or bully-victim).

中文翻译：

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童年欺凌受害的纵向过程以及与儿童和青少年自我伤害思想和行为的关联：对文献的系统回顾。

引言 欺凌受害一直被强调为年轻人自我伤害思想和行为 (SITB) 的风险因素。这项对基于社区的前瞻性研究的系统回顾探讨了 25 岁以下儿童和年轻人在自残和自杀的全方位欺凌受害（传统/面对面和网络）之间的关联年。重要的是，探索了性别/性别的关联。方法 在 MEDLINE、Embase、PsycINFO、CINAHL 和 Scopus 中搜索符合纳入标准的文章。文章按标题、摘要和全文筛选。使用 Newcastle-Ottawa 队列研究量表进行质量评估。数据以叙述方式合成。该协议已在 PROSPERO (CRD42021261916) 上注册，并遵循 PRISMA 2020 指南。结果 共有来自 17 个国家的 35 篇论文被纳入。结果按欺凌类型呈现：传统/面对面 (n = 25)、网络 (n = 7) 和/或两种类型的综合 (n = 7)。结果包括自杀意念 (n = 17)、自残 (n = 10)、自杀未遂 (n = 4)、NSSI (n = 4)、其他 (n = 7)。研究测量了 18 岁以下 (n = 24)、18-25 岁 (n = 8) 以及 18 岁以下和 18-25 岁 (n = 3) 的结果。探索性别 (20%) 作用的研究发现了一些有趣的细微差别。结论 在欺凌和 SITB 之间发现了一些从弱到强的关联，但由于研究的异质性（例如，使用的方法、暴露/结果的概念化和操作化），结论是暂时的。