HIP FRACTURE AND STROKE TRENDS IN AN AGING POPULATION

该提案是越来越多的研究的一部分，旨在 了解死亡率、发病率、生存率和残疾水平的趋势 老年人中选定的主要疾病及其影响 医疗保健利用的调查结果。具体来说，该提案包括 对一个健康状况良好的老年成员的连续队列进行的回顾性研究 确定并有详细记录的老年人口，用于以下目的： 定义并解释髋部骨折发生率的趋势， 男性和女性的死亡率、长期生存和功能结果 1967 年至 1992 年这 25 年期间的女性。 定义和解释中风发病率、死亡率、 1981 年至 1992 年间的生存率和严重程度，作为先前研究的延伸 卒中趋势研究。 研究人群由四个连续时期的老年人群组成 以下五年期间确定的人员：1967-71、1974- 78，1981-85，1988-92。前三个群体“已经被定义， 而第四个将被定义为当前提案的一部分。 假设如下： 髋部骨折 1967 年至 1992 年期间： 不同年龄人群髋部骨折的发生率 > 65岁增加了。 短期和长期髋关节都有所增加 骨折存活率。 骨折后功能有所增强 急性髋部骨折幸存者的独立性。 笔画 1981-92 年期间： 65 岁以上人群中风的年龄别发病率 年龄增加了。 中风的临床严重程度和病死率有所下降。 发病率增加和严重程度降低可归因于 部分是为了改变疾病的自然史，部分是为了 使用更新的成像技术确定较轻的病例。

This proposal constitutes part of a growing body of research designed to understand trends in mortality, morbidity, survival, and disability levels for selected major diseases among older persons, and implications of the findings for health care utilization. Specifically, the proposal consists of a retrospective study of successive cohorts of older members of a well- defined and well-documented elderly population for the following purposes: Defining and explaining the trends in hip fracture incidence, mortality, long-term survival, and functional outcomes among males and females during the 25 year period 1967-1992. Defining and explaining changes in stroke incidence, mortality, survival, and severity between 1981 and 1992, as an extension of a previous study of stroke trends. The study population consists of four successive period cohorts of elderly people identified for the following five-year periods: 1967-71,1974- 78,1981-85,1988-92. The first three cohorts 'have already been defined, while the fourth will be defined as part of the current proposal. Hypotheses are as follows: A Hip Fracture That during the period 1967-1992: Age-specific incidence of hip fracture among persons > 65 years of age has increased. There has been an increase in short- and long-term hip fracture survival. There has been an increase in post-fracture functional independence among survivors of acute hip fracture. Stroke That during the period 1981-92: Age-specific incidence of stroke among persons > 65 years of age has increased. Clinical severity and case fatality of stroke has decreased. Increased incidence and decreased severity are attributable in part to change in the natural history of disease and in part to ascertainment of milder cases using newer imaging technology.