National Health Interview Survey: Longitudinal Study of Aging, 70 Years and Over, 1984-1990

This study, commonly known as the Longitudinal Study of
Aging (LSOA), was conducted by the National Center for Health
Statistics (NCHS) in collaboration with the National Institute on
Aging (NIA) and designed to (1) provide mortality rates by
demographic, social, economic, and health characteristics that are not
available from the vital statistics system, (2) measure change in the
functional status and living arrangements of older people, and (3)
provide measures of health care use. It was also designed to describe
the continuum from functionally independent living in the community
through dependence, possible institutionalization, and finally
death. The LSOA is an extension of the National Health Interview
Survey (NHIS) of 1984, following its sample of 16,148
noninstitutionalized elderly people (55 years and over) living in the
United States, with a special focus on those who were 70 years and
over in 1984. This release of the LSOA contains data on those
respondents who had been 70 years and older at the time of their 1984
interviews. The data include 1986, 1988, and 1990 reinterviews,
National Death Index matches from 1984-1989, and 1987 interviews with
contact persons named by decedents, as well as selected variables from
the 1984 NHIS core questionnaire and its two supplements, Health
Insurance and the Supplement on Aging (SOA). Two Medicare files are
also included: Part 2, Medicare Hospital Records, and Part 3, Other
Medicare Use Records (which covers home health care, hospice, and
outpatient use). Links also are provided to allow merging of
additional variables from the NATIONAL HEALTH INTERVIEW SURVEY, 1984
(ICPSR 8659).

本研究即通常所称的老龄化纵向研究（Longitudinal Study of Aging, LSOA），由美国国家卫生统计中心（National Center for Health Statistics, NCHS）与美国国家老龄化研究所（National Institute on Aging, NIA）联合开展，旨在达成三大目标：其一，提供人口统计学、社会、经济及健康特征维度的死亡率数据——此类数据无法从生命统计系统中获取；其二，评估老年人群功能状态与居住安排的变化情况；其三，提供医疗服务使用情况的相关指标。此外，该研究还旨在描述老年人群从社区功能独立生活、逐步依赖照护、可能转入机构养老直至最终死亡的完整连续谱系。LSOA是1984年全国健康访谈调查（National Health Interview Survey, NHIS）的延伸研究，沿用了原调查的样本，即美国境内16148名非机构化老年人群（1984年时年满55岁及以上），并特别聚焦于1984年时年满70岁及以上的受访者。本次发布的LSOA数据集涵盖1984年访谈时年满70岁及以上的受访者相关数据，包含1986年、1988年及1990年的回访数据、1984-1989年全国死亡索引匹配记录、1987年对逝者指定联系人的访谈数据，同时纳入1984年NHIS核心问卷及其两项补充模块（健康保险补充模块与老龄化补充模块（Supplement on Aging, SOA））中的选定变量。本次数据集还包含两份医疗保险（Medicare）文件：第二部分为医疗保险住院记录，第三部分为其他医疗保险使用记录（涵盖家庭健康护理、临终关怀及门诊服务使用情况）。同时提供了关联接口，可用于合并1984年全国健康访谈调查（ICPSR 8659）中的额外变量。