American Indians face pervasive trauma exposure, collective histories of communal suffering, and elevated risk for depression and posttraumatic stress disorder. In addition to socioeconomic barriers, access to culturally responsive treatment is limited, which may compromise treatment engagement. The Iwankapiya study piloted the Historical Trauma and Unresolved Grief Intervention (HTUG), combined with Group Interpersonal Psychotherapy (IPT), to reduce symptoms of depression and related trauma and grief. The study hypothesized that HTUG + IPT would lead to greater group engagement and decreased depression and related symptoms compared with IPT-Only. American Indian adults (n = 52) were randomized into one of two 12-session interventions, HTUG + IPT or IPT-Only, at two tribal sites: one Northern Plains reservation (n = 26) and one Southwest urban clinic (n = 26). Standardized measures assessed depression, posttraumatic stress disorder, grief, trauma, and substance use. Data were collected at screening, baseline, end of intervention, and 8 weeks postintervention; depression and group engagement measures were also collected at Weeks 4 and 8 of the intervention. Depression scores significantly decreased for both treatments, but there were no significant differences in depression between the two groups: IPT-Only (30.2 ± 6.4 at baseline to 16.7 ± 12.1 at follow-up) and HTUG + IPT (30.2 ± 8.1 at baseline to 19.9 ± 8.8 at follow-up). However, HTUG + IPT participants demonstrated significantly greater group engagement. Postintervention, clinicians expressed preference for HTUG + IPT based upon qualitative observations of greater perceived gains among participants. Given the degree of trauma exposure in tribal communities, these findings in a relatively small sample suggest HTUG should be further examined in context of treatment engagement. (PsycINFO Database Record (c) 2019 APA, all rights reserved).

中文翻译：

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Iwankapiya美国印第安人飞行员临床试验：历史创伤和团体人际心理治疗。

美洲印第安人面临普遍的创伤暴露，集体痛苦的集体历史以及抑郁症和创伤后应激障碍的风险增加。除社会经济障碍外，获得文化响应性治疗的机会有限，这可能会损害治疗的参与度。Iwankapiya的研究对历史创伤和未解决的悲伤干预（HTUG）进行了试验，并与团体人际心理治疗（IPT）相结合，以减轻抑郁症以及相关创伤和悲伤的症状。该研究假设与仅IPT相比，HTUG + IPT将导致更大的团队参与度，并减少抑郁症和相关症状。美洲印第安人（n = 52）在两个部落地点被随机分为两个十二节干预措施之一，即HTUG + IPT或仅IPT。1个北部平原保留地（n = 26）和1个西南城市诊所（n = 26）。标准化措施评估了抑郁症，创伤后应激障碍，悲伤，创伤和药物滥用。在筛查，基线，干预结束和干预后8周收集数据。在干预的第4周和第8周，还收集了抑郁和小组参与的措施。两种疗法的抑郁评分均显着降低，但两组之间的抑郁无显着差异：仅IPT（基线时为30.2±6.4，随访时为16.7±12.1）和HTUG + IPT（基线时为30.2±8.1）随访时为19.9±8.8）。但是，HTUG + IPT参与者表现出更大的团队参与度。干预后 基于对参与者更大的感知收益的定性观察，临床医生对HTUG + IPT表示偏爱。考虑到部落社区遭受创伤的程度，在相对较小的样本中得出的这些结果表明，HTUG应在参与治疗的情况下进一步检查。（PsycINFO数据库记录（c）2019 APA，保留所有权利）。