OBJECTIVES To examine the mediating effects of depression and anxiety in the relationship between self-efficacy and quality of life among people with mild cognitive impairment (MCI) or mild dementia. METHOD A total of 196 patients diagnosed with MCI or dementia due to Alzheimer disease completed structured measures of self-efficacy, quality of life, and depressive and anxiety symptoms. We examined direct and mediated effects by fitting structural equation models to data. RESULTS Our analyses supported that the effects of self-efficacy on quality of life may be partially mediated by depression and anxiety. Both anxiety and depression had significant mediating effects, with depression showing a stronger effect. CONCLUSION These results suggest that increased self-efficacy may have a positive effect on quality of life in people with MCI or dementia-partly by reducing depression and anxiety. These findings may have important practical implications for tailoring therapeutic interventions.

中文翻译：

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自我效能对轻度认知障碍和轻度痴呆患者生活质量的影响：抑郁和焦虑的中介作用。


目的 研究抑郁和焦虑在轻度认知障碍（MCI）或轻度痴呆患者自我效能和生活质量之间的中介作用。方法 共有 196 名被诊断为轻度认知障碍 (MCI) 或因阿尔茨海默病导致的痴呆症的患者完成了自我效能、生活质量以及抑郁和焦虑症状的结构化测量。我们通过将结构方程模型与数据拟合来检查直接效应和中介效应。结果我们的分析支持自我效能对生活质量的影响可能部分是由抑郁和焦虑介导的。焦虑和抑郁均具有显着的中介作用，其中抑郁的作用更强。结论 这些结果表明，自我效能感的提高可能对 MCI 或痴呆症患者的生活质量产生积极影响，部分是通过减少抑郁和焦虑来实现的。这些发现可能对调整治疗干预措施具有重要的实际意义。