Latinx college students are at high risk of suffering from depressive symptoms. A factor posited to influence depressive symptoms among Latinx college students is racial/ethnic discrimination. However, the mechanisms which link racial/ethnic discrimination to depressive symptoms are not well understood. This study examined the mediating role of racism-related vigilance and sleep-related factors (i.e., sleep quality, sleep efficiency) on the relationship between perceived intergroup racial/ethnic discrimination and depressive symptoms. Participants were 194 Latina/o college students enrolled at a Midwestern university designated as a Hispanic-Serving Institution. Path analysis was conducted to investigate whether racism-related vigilance and sleep-related factors (i.e., sleep quality, sleep efficiency) are potential pathways in the relationship between intergroup racial/ethnic discrimination and depressive symptoms. Path analysis revealed that racism-related vigilance and sleep quality sequentially mediated the effect of perceived intergroup racial/ethnic discrimination on depressive symptoms. Sleep efficiency did not mediate the relationship between racial/ethnic discrimination and depressive symptoms. This study is among the first to document that intergroup racial/ethnic discrimination is negatively related to mental health through both cognitive and behavioral mechanisms. This research has important implications for understanding how discrimination may influence mental health outcomes among Latinx college students.

拉丁裔大学生患抑郁症的风险很高。影响拉丁裔大学生抑郁症状的一个因素是种族/民族歧视。然而，机制将种族/民族歧视与抑郁症状联系起来尚不清楚。本研究考察了种族主义相关警觉和睡眠相关因素（即睡眠质量、睡眠效率）对感知到的群体间种族/民族歧视与抑郁症状之间关系的中介作用。参与者是 194 名拉丁裔/o 大学生，他们就读于被指定为西班牙裔服务机构的中西部大学。进行路径分析以调查种族主义相关的警惕性和睡眠相关因素（即睡眠质量、睡眠效率）是否是群体间种族/民族歧视与抑郁症状之间关系的潜在途径。路径分析显示，种族主义相关的警惕性和睡眠质量依次介导了感知到的群体间种族/民族歧视对抑郁症状的影响。睡眠效率并未调节种族/民族歧视与抑郁症状之间的关系。这项研究是第一个通过认知和行为机制证明群体间种族/族裔歧视与心理健康呈负相关的研究之一。这项研究对于了解歧视如何影响拉丁裔大学生的心理健康结果具有重要意义。这项研究是第一个通过认知和行为机制证明群体间种族/族裔歧视与心理健康呈负相关的研究之一。这项研究对于了解歧视如何影响拉丁裔大学生的心理健康结果具有重要意义。这项研究是第一个通过认知和行为机制证明群体间种族/族裔歧视与心理健康呈负相关的研究之一。这项研究对于了解歧视如何影响拉丁裔大学生的心理健康结果具有重要意义。