The population of elderly individuals is increasing worldwide due to the development of medical technology and the consequent extension of longevity (1). In Korea in 2000, the elderly population accounted for >7% of the total population; in 2017, this value rose to over 14% and is expected to be over 20% in 2026. This is the fastest rate of increase of any national elderly population in the world (2). This increase in the proportion of the elderly population ratio has resulted from a decrease in birthrate and an increase in life expectancy (3). At the same time, the risk of disability with increased old age, from both chronic degenerative disease and the aging process itself, is also increasing (4). Disability in elderly individuals not only inhibits Abstract Background: We aimed to identify incidence rates of disability and its associated factors among Korean community-dwelling older adults. Methods: The sample included 1,739 Koreans aged over 65 yr from the Korean Longitudinal Study of Aging (2006-2016) who reported no limitations in activities of daily living (ADL) or instrumental activities of daily living (IADL) at baseline (2006) and had complete data for other covariates. ADL, IADL, socio-demographic, lifestyle, and health-condition data were collected and analyzed using multiple logistic regression models. Results: The 10-yr incidence rates of ADL and IADL disability in subjects with no disability at baseline were 11.6% and 21.6%, respectively. After adjusting for socio-demographic, lifestyle, and health-condition factors, the incidence of ADL disability was higher in women (odds ratio [OR] =1.418, 95% confidence interval [CI]=1.1022.613) and increased with age (OR=1.170, 95% CI=1.133-1.208), multi-morbidity (OR=1.194, 95% CI=1.0151.406), and obesity (OR=1.563, 95% CI=1.057-2.311). It decreased in subjects living alone (OR=0.531, 95% CI=0.328-0.856). The incidence of IADL disability increased with age (OR=1.131, 95% CI=1.102-1.161), multimorbidity (OR=1.199, 95% CI=1.054-1.365), and cognitive disability (OR=1.422, 95% CI=1.083-1.866) and decreased for subjects living alone (OR=0.484, 95% CI=0.328-0.715) and with overweight (OR=0.725, 95% CI=0.532-0.988). Conclusion: Incidence rates of disability differed considerably based on socio-demographic, lifestyle, and health-condition factors. These results suggest the importance of identifying factors that can decrease the risk of disability in this group and of prevention efforts in populations with a higher disability risk.

中文翻译：

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韩国社区老年人的残疾发病率及其相关因素

由于医疗技术的发展和随之而来的寿命延长，全球老年人口不断增加 (1)。2000年韩国老年人口占总人口的7%以上；2017 年，这一数字上升到 14% 以上，预计 2026 年将超过 20%。这是世界上所有国家老年人口中增长速度最快的 (2)。老年人口比例的增加是由于出生率的下降和预期寿命的增加（3）。与此同时，慢性退行性疾病和衰老过程本身导致的老年残疾风险也在增加 (4)。老年人的残疾不仅会抑制抽象背景：我们旨在确定韩国社区老年人的残疾发生率及其相关因素。方法：样本包括来自韩国老龄化纵向研究（2006-2016）的 1,739 名 65 岁以上的韩国人，他们报告在基线（2006 年）的日常生活活动（ADL）或日常生活工具活动（IADL）没有限制，并且有其他协变量的完整数据。使用多重逻辑回归模型收集和分析 ADL、IADL、社会人口、生活方式和健康状况数据。结果：基线无残疾受试者的 ADL 和 IADL 残疾的 10 年发生率分别为 11.6% 和 21.6%。在调整社会人口、生活方式和健康状况因素后，女性 ADL 残疾的发生率较高（优势比 [OR] =1.418，95% 置信区间 [CI]=1.1022.613）并随着年龄增长（OR=1.170, 95% CI=1.133-1.208）、多发病（OR=1.194, 95% CI=1.0151.406）和肥胖（ OR=1.563, 95% CI=1.057-2.311)。它在独居的​​受试者中下降（OR=0.531, 95% CI=0.328-0.856）。IADL 残疾的发生率随着年龄（OR=1.131, 95% CI=1.102-1.161）、多发病（OR=1.199, 95% CI=1.054-1.365）和认知障碍（OR=1.422, 95% CI=1.083）的增加而增加-1.866) 并在独居 (OR=0.484, 95% CI=0.328-0.715) 和超重 (OR=0.725, 95% CI=0.532-0.988) 的受试者中降低。结论：残疾的发生率因社会人口、生活方式和健康状况因素而有很大差异。