Manton K G, Stallard E, Corder L S
Center for Demographic Studies, Duke University, USA.
J Gerontol A Biol Sci Med Sci. 1998 Jan;53(1):B59-70. doi: 10.1093/gerona/53a.1.b59.
Declines in chronic disability were observed in the National Long Term Care Survey (NLTCS) 1982 to 1994. We analyzed the 1982, 1984, 1989, and 1994 NLTCS to identify the dimensions of chronic disability from multivariate analyses of a rich battery of measures of the ability (or inability) to perform specific activities. Changes over time in the prevalence of individual disability dimensions can be tracked to evaluate the rate of age-related losses of specific functions, 1982-1994. Seven dimensions described changes in the age dependence of 27 activities of daily living, instrumental activities of daily living, and physical performance measures in community and institutional resident elderly individuals over the 12 year period. Adjusted for age, the healthiest dimension with the best physical function experienced the largest increase in prevalence (3.3%) implying a decline in age-related disability. Disability declines were correlated with reductions in select health conditions (e.g., dementia and circulatory disease) over the study period.
在1982年至1994年的国家长期护理调查（NLTCS）中观察到慢性残疾有所下降。我们分析了1982年、1984年、1989年和1994年的NLTCS，通过对一系列丰富的特定活动能力（或无能力）测量指标进行多变量分析，以确定慢性残疾的维度。可以追踪个体残疾维度患病率随时间的变化，以评估1982 - 1994年特定功能与年龄相关的丧失率。七个维度描述了12年期间社区和机构居住的老年个体在27项日常生活活动、日常生活工具性活动以及身体机能测量方面年龄依赖性的变化。经年龄调整后，身体功能最佳的最健康维度患病率增长最大（3.3%），这意味着与年龄相关的残疾有所下降。在研究期间，残疾下降与特定健康状况（如痴呆和循环系统疾病）的减少相关。
