Therapeutic mechanisms targeting multiple mental health disorders are key for providing treatment services with high-disparity, low-resource populations. Rumination, a cognitive response style, is a well-recognized transdiagnostic factor across disorders in the general population (Arditte et al., 2016; Nolen-Hoeksema, 1991). This study explored the influence of rumination, and mediational effect of mental health disorder, on Quality of Life among a sample of 585 Northern Plains Indian (NPI) women and men. Using secondary data from a Mood Disorder Assessment Validation study, parallel mediation path analyses indicated rumination did not have a direct influence on quality of life. However, rumination indicated higher anxiety (R² = .38, p < .001), depression (R² = .60, p < .001), and substance use symptoms (R² = .14, p < .001). As rumination increased, significant increases occurred in severity of symptoms reported for women and men for all diagnoses- but lower perceived quality of life occurred only in the presence of depressive symptoms (women, B = -28.19, p < .001; men, B = -20.15, p < .001). Significant differences arose between NPI women and men, with women reporting higher rumination, anxiety, and depression and men reporting higher substance use. Based on these results, rumination is useful as a transdiagnostic factor for NPIs, as rumination helped uncover maladaptive coping mechanisms among NPIs in the sample. In addition, quality of life assessments can help target maladaptive coping in treatment by taking a holistic view of well-being that accounts for risk factors while supporting traditional views of healing. (PsycInfo Database Record (c) 2021 APA, all rights reserved).

中文翻译：

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北部平原印第安人的沉思和生活质量。


针对多种精神健康障碍的治疗机制是为差异较大、资源匮乏的人群提供治疗服务的关键。反刍思维是一种认知反应方式，是普通人群中公认的跨疾病跨诊断因素（Arditte et al., 2016；Nolen-Hoeksema, 1991）。本研究以 585 名北平原印第安人 (NPI) 女性和男性为样本，探讨了沉思的影响以及心理健康障碍的中介效应对生活质量的影响。使用情绪障碍评估验证研究的二手数据，平行中介路径分析表明沉思对生活质量没有直接影响。然而，沉思表明较高的焦虑（R² = .38，p < .001）、抑郁（R² = .60，p < .001）和药物滥用症状（R² = .14，p < .001）。随着沉思的增加，所有诊断中女性和男性报告的症状严重程度显着增加，但仅在存在抑郁症状时感知生活质量较低（女性，B = -28.19，p < .001；男性，B = -20.15，p < .001）。 NPI 女性和男性之间存在显着差异，女性报告的沉思、焦虑和抑郁程度更高，而男性报告的物质使用率更高。基于这些结果，沉思可以作为 NPI 的跨诊断因素，因为沉思有助于揭示样本中 NPI 之间的适应不良应对机制。此外，生活质量评估可以通过全面地看待健康状况，考虑到风险因素，同时支持传统的治疗观点，从而帮助针对治疗中的适应不良应对方式。 （PsycInfo 数据库记录 (c) 2021 APA，保留所有权利）。