PURPOSE Alongside population aging, the rapid increase in the number of older adults with multimorbidity-the existence of two or more chronic conditions-has been noteworthy. However, in South Korea, studies taking a comprehensive approach to the factors associated with health-related quality of life (HRQoL) and disease-related problems experienced by older adults with multimorbidity have been rare. This study examined the associations of several variables with HRQoL and explored disease-related life experiences of community-dwelling older adults with multimorbidity in South Korea. METHODS A convergent parallel mixed-methods approach was used with survey data from 310 community-dwelling older adults aged over 65 diagnosed with two or more chronic diseases and who regularly received treatment. Qualitative data were collected from 3 focus group interviews with 15 participants. Factors correlated with HRQoL were analyzed using multiple regression, and NVivo Pro 12.0 was used for content analysis. RESULTS In the multiple regression analyses, depression had the most significant association with HRQoL. Depression, activities of daily living, instrumental activities of daily living, support from friends, number of medications, and subjective health status explained 41.0% of the variance in HRQoL. Content analysis revealed 5 major health-related themes in the participants' lives: reduced physical function, anxious mental state, changes in the importance of the social support structure, limitations of disease management, and acceptance and endurance. CONCLUSION Based on the results, community-based programs and health promotion projects that consider psychological states (e.g., depression) are needed to boost the HRQoL of individuals with multimorbidity.

中文翻译：

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韩国社区居民中多发病的健康相关生活质量：一种融合的并行混合方法方法。

目的随着人口老龄化，具有多种发病率（存在两种或多种慢性病）的老年人数量迅速增加是值得注意的。然而，在韩国，很少采取综合方法来研究与健康相关的生活质量（HRQoL）和患有多种疾病的老年人所经历的疾病相关问题相关的因素。这项研究调查了几个变量与HRQoL的关联，并探讨了韩国社区居民中多发病的老年人与疾病相关的生活经历。方法采用融合并行混合方法方法，对来自310位居住在65岁以上，被诊断患有两种或多种慢性疾病并定期接受治疗的老年人的调查数据进行了研究。定性数据来自15个参与者的3个焦点小组访谈。使用多元回归分析与HRQoL相关的因素，并将NVivo Pro 12.0用于内容分析。结果在多元回归分析中，抑郁与HRQoL的关系最为显着。抑郁，日常生活活动，日常生活工具活动，朋友的支持，药物的使用以及主观健康状况等因素解释了HRQoL差异的41.0％。内容分析揭示了参与者生活中与健康相关的5个主要主题：身体机能降低，精神焦虑，社会支持结构重要性的变化，疾病管理的局限性以及接受和耐力。结论基于结果，