Department of Sociology, Cornell University, Ithaca, New York, USA.
Department of Health Studies, University of Chicago, Illinois, USA.
J Gerontol B Psychol Sci Soc Sci. 2021 Dec 17;76(Suppl 3):S266-S275. doi: 10.1093/geronb/gbab100.
The National Social Life, Health, and Aging Project (NSHAP) has collected 3 rounds of data on older adults' egocentric social networks. We describe the structure of network data collection for different components of the sample and the data that are available for those groups. We also describe survey techniques that were used to track specific personnel changes that occurred within respondents' networks during the 10-year study period.
Descriptive statistics are presented for measures of network size, composition, and internal structure at all 3 rounds, respondent-level summary measures of change in these characteristics between and across rounds, and measures of change associated with the loss and addition of network members across Rounds 1, 2, and 3. Procedures that were used to clean the network change data are also explained.
The NSHAP network change module provides reliable information about specific changes that occurred within respondents' confidant networks. For returning baseline respondents, there is considerable overlap with respect to which confidants are named in successive rosters, but the norm is for Round 3 networks to be composed primarily of new confidants.
These data provide new insights into the dynamic nature of networks in later life. Data limitations, and directions for future research, are discussed.
国家社会生活、健康和老龄化项目（NSHAP）已经收集了 3 轮老年人自我中心社交网络的数据。我们描述了样本不同组成部分的网络数据收集结构以及这些组可用的数据。我们还描述了用于跟踪受访者网络中特定人员在 10 年研究期间发生变化的调查技术。
呈现了所有 3 轮网络大小、组成和内部结构的描述性统计数据、这些特征在轮次之间和跨轮次变化的受访者水平汇总度量，以及与第 1、2 和 3 轮网络成员的损失和增加相关的变化度量。还解释了用于清理网络变化数据的程序。
NSHAP 网络变化模块提供了有关受访者信任网络中发生的具体变化的可靠信息。对于返回基线的受访者，在连续名单中提名的信任者之间有相当大的重叠，但第 3 轮网络的规范主要由新的信任者组成。
这些数据提供了关于晚年网络动态性质的新见解。讨论了数据限制和未来研究方向。
