Borderline personality disorder (BPD) and alcohol use disorder often co-occur, yet we know little about risk processes underlying this association. We tested two mechanistic pathways linking BPD symptoms and alcohol-related problems. In the "affective pathway," we hypothesized that BPD symptoms would be associated with alcohol-related problems through affective instability and drinking to cope. In the "sensation-seeking pathway," we proposed that BPD symptoms would be related to alcohol-related problems through sensation seeking and drinking to enhance positive experiences. We tested a multiple mediation model using age-18 cross-sectional data from the Pittsburgh Girls Study. Results supported both pathways: BPD symptoms had an indirect effect on alcohol-related problems by (1) affective instability and coping motives (β = .03, p < .05), and (2) sensation-seeking and enhancement motives (β = .02, p < .05). These results highlight coping and enhancement drinking motives as possible mechanisms that explain co-occurrence of BPD symptoms and alcohol-related problems in young females.

中文翻译：

---

情感和寻求知觉的途径将年轻女性的边缘型人格障碍症状与酒精相关问题联系起来。

边缘型人格障碍（BPD）和饮酒障碍经常并发，但我们对这种关联的潜在风险过程知之甚少。我们测试了链接BPD症状和酒精相关问题的两种机制途径。在“情感途径”中，我们假设BPD症状将通过情感不稳定和饮酒来应对与酒精相关的问题。在“寻求感觉的途径”中，我们提出BPD症状将通过寻求和喝酒来增强积极体验，从而与酒精相关的问题相关。我们使用匹兹堡女孩研究的18岁横截面数据测试了多重中介模型。结果支持两种途径：BPD症状对酒精相关问题具有间接影响，其原因是：（1）情绪不稳定和应对动机（β= .03，p <.05），以及（2）寻求感觉和增强动机（β= .02，p <.05）。这些结果强调应对和增强饮酒动机是解释年轻女性中BPD症状和酒精相关问题的共同发生的可能机制。