Leading etiological theories implicate the family environment in shaping borderline personality disorder (BPD). Although a substantive literature explores familial aggregation of this condition, most studies focus on parent influence(s) on offspring symptoms without examining youth symptom influence on the parent. The current study investigated reciprocal relations between parent and adolescent BPD symptoms over time. Participants were 498 dyads composed of urban-living girls and their parents enrolled in a longitudinal cohort study (Pittsburgh Girls Study). The authors examined BPD severity scores assessed yearly when youth were ages 15-17 years in a series of cross-lagged panel models. After controlling for autoregressive effects, a measure of parent-child conflict, and an indicator of socioeconomic status, evidence of parental influence on adolescent symptoms did not emerge. However, adolescent BPD symptoms at age 16 predicted greater parent BPD symptoms at age 17 above the influence of depression. Results highlight the importance of considering the influence of youth BPD on parental symptoms.

中文翻译：

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三年来父母和青少年边缘人格症状的相互影响。

主要病因学理论认为家庭环境与边缘型人格障碍（BPD）的形成有关。尽管大量文献探讨了这种情况的家族聚集性，但大多数研究都集中在父母对后代症状的影响，而没有检查青少年症状对父母的影响。目前的研究调查了父母和青少年 BPD 症状随时间的相互关系。参与者是 498 名由城市女孩及其父母组成的双人组，参加了一项纵向队列研究（匹兹堡女孩研究）。作者在一系列交叉滞后面板模型中检查了每年在 15 至 17 岁青少年时评估的 BPD 严重程度评分。在控制了自回归效应、亲子冲突的衡量标准和社会经济地位的指标后，没有出现父母对青少年症状影响的证据。然而，16 岁时的青少年 BPD 症状预示着父母 17 岁时的 BPD 症状会比抑郁症的影响更大。结果强调了考虑青少年边缘性人格障碍对父母症状影响的重要性。