There has been scant research published regarding the assessment of depression in ethnic groups, and few studies have addressed the validation of scales for standardized assessment of depressive symptoms among indigenous minorities. The aim of this study was to analyze the psychometric properties of the 15-item Geriatric Depression Scale (GDS-15) for a multi-ethnic sample of older Chilean adults. Cross-sectional study with a sample of 800 older people, 71% of whom were self-declared indigenous (Aymara/Mapuche). The non-indigenous group had a higher total GDS-15 score and lower quality of life and wellbeing scores than the indigenous groups (p < 0.001). The GDS-15 had a KR-20 coefficient of 0.90 for the non-indigenous group, 0.80 for Aymara, and 0.85 for Mapuche. The homogeneity index was 0.38 for non-indigenous, 0.24 for Aymara, and 0.29 for Mapuche. The GDS-15 showed satisfactory psychometric characteristics for the samples studied. However, the better results observed for the non-indigenous group suggest that some characteristics and content of the rating scale are not fully appropriate for the indigenous older population. There is a need to develop the transcultural validation of scales such as GDS-15, which are applied in a standardized manner in geriatric evaluations as part of primary healthcare.

中文翻译：

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智利15个项目的老年抑郁量表的多民族验证。

关于种族抑郁症评估的研究很少发表，很少有研究涉及对土著少数民族抑郁症状的标准化评估量表的验证。这项研究的目的是分析智利老年人多族裔样本的15个项目的老年抑郁量表（GDS-15）的心理计量学特性。横断面研究样本为800位老年人，其中71％是自称是土著的人（Aymara / Mapuche）。与土著人群相比，非土著人群的GDS-15总得分更高，生活质量和幸福感得分更低（p <0.001）。对于非土著人群，GDS-15的KR-20系数为0.90，对Aymara而言为0.80，对于Mapuche而言为0.85。非土著人的同质性指数为0.38，艾马拉人的同质性指数为0.24,0。马普切29。GDS-15表现出令人满意的心理特征。但是，对于非土著人群观察到的更好结果表明，该评级量表的某些特征和内容并不完全适合土著老年人。需要开发量表（例如GDS-15）的跨文化验证，以标准化的方式将其作为主要医疗保健的一部分用于老年医学评估中。