1993 National Mortality Followback Survey

工作总结：该机构间协议的目的是支持收集和分析关于死亡原因和死亡者生命最后一年特征的数据，以规划由国家卫生和健康中心、疾病预防控制中心进行的1993年全国死亡率跟踪调查的1992年预测试和1993年主要调查。这项调查补充了生命统计档案中死亡证明的信息，并提供了从死者亲属或其他知情人处获得的关于死者特征的信息。预测试调查了1992年死亡的大约800名15岁以上的人。主要调查调查了1993年死亡的22，951名15岁以上的人。其中包括884名百岁老人。2002财政年度的活动集中于数据分析。一项比较1986年和1993年NMFS数据的分析探讨了两次调查之间7年内诊断出的痴呆症随时间的总体变化。死亡率的计算使用三个来源的数据-死亡证书上列出的潜在和多种死亡原因，以及关于知情人访谈中痴呆症诊断的终身史的问题。身体和认知功能的发病率的估计，从线人访谈。结果显示，死亡者中痴呆的终身史随着年龄的增长而上升，直到95岁，然后下降。1993年报告的痴呆症终身史比1986年更常见。1993年，死亡证明数据与1986年一样，继续低估痴呆症死亡率，尽管1993年女性死亡率高于1986年，无论确定来源如何。然而，在同一时期，痴呆症死者的死亡率和残疾率并没有增加。这份手稿正在接受《神经病学》杂志的审查。还可以对这项调查的数据进行进一步分析。

Summary of Work: The purpose of this interagency agreement was to support the collection and analysis of data on cause of death and characteristics of decedents in the last year of life in the planning of the 1992 Pretest and 1993 Main Survey of the 1993 National Mortality Followback Survey (NMFS), conducted by NCHS, CDC. This survey supplements information from death certificates in the vital statistics file with information on characteristics of the decedents obtained from the next of kin or other informant knowledgable about the decedents' last days. The pretest examined approximately 800 deaths of individuals aged 15 years and over who died in 1992. The main survey examined 22,951 deaths of individuals aged 15 years and over who died in 1993. This includes 884 deaths to centenarians. Activities during FY 2002 have been concentrated on data analysis. An analysis comparing the 1986 and 1993 NMFS data explored aggregate change over time in diagnosed dementia over the 7-year period between the two surveys. Mortality rates were computed using data from three sources -- the underlying and multiple causes of death as listed on the death certificate, and questions concerning the lifetime history of dementia diagnosis from the informant interviews. Estimates of morbidity in physical and cognitive function were obtained from the informant interviews. Results showed the lifetime history of dementia among decedents rose with age up to age 95 and then declined. The reported lifetime history of dementia was more common in 1993 than in 1986. In 1993 death certificate data continued to underestimate dementia mortality as it did in 1986, although for females the mortality rates were higher in 1993 than in 1986, regardless of the source of ascertainment. Morbidity and disability among the demented decedents did not show increases over the same time period, however. This manuscript is under review by the journal Neurology. Additional analyses of data from this survey are possible.