Even though previous studies have shown that transgender youth have poorer mental health and more experiences of being bullied than their cisgender counterparts, and that bullying associates with poorer mental health, knowledge on such associations in different gender identity groups is scarce. This study investigated how mental health problems and experiences of being bullied appear across different gender identity groups, and how bullying is associated with mental health among the groups in question. Data from the Finnish School Health Promotion 2021 study (n = 152,880, mean age 16.2 years (standard deviation 1.22)) was used and categorized into four gender identity groups: cisgender girls (n = 76,521), cisgender boys (n = 69,735), transfeminine youth (n = 1317), and transmasculine youth (n = 5307). Transgender youth experienced more bullying and reported poorer mental health than cisgender youth. While transfeminine youth faced the most bullying, transmasculine youth had the most mental health symptoms. In each group, bullying associated with poorer mental health. Compared to cisgender boys without bullying experiences, odds of poorer mental health were dozens-fold among transmasculine youth with weekly bullying experiences. In addition, compared to cisgender boys with bullying experiences, odds of poorer mental health were greater among all other gender identity groups with bullying experiences, and among transmasculine youth in particular (e.g., odds ratio of generalized anxiety = 8.36 (95% confidence interval, 6.59–10.6)). Bullying is associated with poorer mental health in all youth, but transgender youth, and especially transmasculine youth, may be in an even more vulnerable position for its implications. This suggests that there is a need for improving effective measures to decrease bullying in schools and to improve wellbeing of transgender youth.

尽管之前的研究表明，跨性别青少年的心理健康状况比同性别青少年的心理健康状况更差，遭受欺凌的经历更多，而且欺凌行为与心理健康状况较差有关，但对不同性别认同群体中这种关联的了解却很少。这项研究调查了不同性别认同群体中心理健康问题和被欺凌经历的情况，以及欺凌行为与相关群体的心理健康之间的关系。使用芬兰学校健康促进 2021 年研究的数据（n  = 152,880，平均年龄 16.2 岁（标准差 1.22）），并将其分为四个性别认同组：顺性别女孩（n  = 76,521）、顺性别男孩（n  = 69,735）、跨性别青年（n  = 1317) 和跨男性青年 ( n = 5307）。与顺性别青少年相比，跨性别青少年遭受更多欺凌，心理健康状况也更差。跨性别青少年面临的欺凌最多，而跨男性青少年则有最多的心理健康症状。在每个群体中，欺凌行为都与较差的心理健康状况有关。与没有遭受欺凌经历的顺性别男孩相比，每周遭受欺凌的跨男性青少年心理健康状况较差的几率是其数十倍。此外，与有欺凌经历的顺性别男孩相比，有欺凌经历的所有其他性别认同群体，尤其是跨男性青少年，心理健康状况较差的几率更大（例如，广泛性焦虑的比值比 = 8.36（95% 置信区间， 6.59–10.6))。欺凌行为与所有青少年的心理健康状况较差有关，但跨性别青少年，尤其是跨男性青年，可能因其影响而处于更加脆弱的境地。这表明需要改进有效措施来减少学校欺凌行为并改善跨性别青少年的福祉。