Betrayal trauma is associated with dissociative symptoms, which can increase the risk of suicidal thoughts and behaviors. Previous research demonstrates associations between a mother’s history of betrayal trauma and intergenerational patterns of maltreatment and dissociation among their children. However, maternal betrayal trauma history remains unexplored in the etiology of youth suicidality. This study was conducted to investigate pathways between maternal betrayal trauma and youth suicidality, while considering the influences of youth maltreatment exposure and symptoms of dissociation. We implemented conditional growth curve modeling in a structural equation modeling framework to analyze secondary data from the Longitudinal Studies of Child Abuse and Neglect (LONGSCAN; N = 1,354; 51.48% female, 53.29% Black). Predictors included mothers’ betrayal trauma history, youth maltreatment exposure, and youth dissociative symptoms at ages 8, 12, and 16. The slope and intercept of dissociative symptoms at the age-8, age-12, and age-16 visit were modeled as latent factors. A robust weighted least squares estimator accounted for categorical outcomes. Indirect effects were assessed via the delta method. We found a significant indirect effect from maternal betrayal trauma to adolescent suicidal ideation through children’s maltreatment exposure and the growth in children’s dissociative symptoms from ages 8 through 16. Maternal betrayal trauma may play a unique role in perpetuating intergenerational patterns of trauma that contribute to subsequent trajectories of youth suicidality among their offspring. Practice implications for screening, prevention, and early intervention strategies are described, along with directions for further study.

背叛创伤与分离症状有关，这会增加自杀念头和行为的风险。先前的研究表明，母亲的背叛创伤史与其子女之间的代际虐待和分离模式之间存在关联。然而，在青少年自杀的病因学中，母亲背叛的创伤史仍未得到探索。本研究旨在调查母亲背叛创伤和青少年自杀之间的途径，同时考虑青少年虐待暴露和分离症状的影响。我们在结构方程建模框架中实施了条件增长曲线建模，以分析来自虐待和忽视儿童纵向研究 (LONGSCAN; N = 1,354；51.48% 女性，53.29% 黑人）。预测因素包括母亲的背叛创伤史、青少年虐待经历和 8、12 和 16 岁时的青少年分离症状。8 岁、12 岁和 16 岁就诊时分离症状的斜率和截距被建模为潜在因素。一个稳健的加权最小二乘估计量解释了分类结果。通过 delta 方法评估间接影响。我们发现，母亲背叛创伤对青少年自杀意念的显着间接影响是通过儿童的虐待暴露和儿童从 8 岁到 16 岁的分离症状的增长。母亲背叛创伤可能在延续导致后续轨迹的代际创伤模式中发挥独特作用他们的后代中有青年自杀倾向。