Post Operative Cancer Mortality in U.S. Elderly

描述（由申请人提供）：拟定研究将检查 老年人死亡率的差异及其对生存估计的影响 使用链接的Medicare索赔文件中的数据（标准 分析文件、服务提供商文件、MEDPAR文件、重要状态文件）， 来自最年长者资产和健康动态的全国调查结果 （AHEAD）研究和国家死亡指数（NDI）。拟议项目已 三个具体目标：1）从Medicare/AHEAD文件中提取癌症病例， 将这些文件与一个复合数据集的NDI文件链接，2）识别和 描述与全国范围内死亡相关的各种风险因素 老年癌症患者的代表性样本，3）进行初步 分析涉及老年人死亡风险的差异， 国家 该研究可为未来的测试提供一个初步的基础， 根据持续时间预测癌症影响的人口多州模型 和疾病严重程度，并评估大规模综合 分析.初步模型将建立生存与风险的关系 分析中发现的因素。数据文件将提供规范性， 来自全国代表性样本的人口统计学数据和受试者内 发生的变化与物理和。认知障碍和 利用正式和非正式支助服务。此数据文件将 通过万维网（WWW）公开提供。

DESCRIPTION (provided by applicant): The proposed study will examine the differences in mortality and the implications for survival estimation in older adults with cancer using data from linked Medicare claim files (Standard Analytic File, Provider of Services file, MEDPAR files, vital status flies), the national survey findings from Asset and Health Dynamics of the Oldest-Old (AHEAD) study and the National Death Index (NDI). The proposed project has three specific aims: 1) to extract cancer cases from Medicare/AHEAD files and link these files with NDI files for one composite data set, 2) to identify and describe various risk factors that are associated with death in a nationally representative sample of older adults with cancer, 3) to conduct preliminary analysis involving differences in mortality risks for older adults across the country. The proposed study can provide a beginning foundation for future testing of demographic multistate models that project the impact of cancers by duration and severity of disease and evaluate the feasibility large-scale comprehensive analysis. Preliminary models will be constructed relating survival to the risk factors identified in the analysis. The data file will provide normative, demographic data from a nationally representative sample and the within-subject changes that occur with regard to physical and. cognitive disability and utilization of both formal and informal support services. This data file will be made publicly available through the World Wide Web (WWW).