BACKGROUND
Longitudinal data available for studying fertility in the United States are not representative at the state level, limiting analyses of subnational variation in US fertility. The US Census Bureau makes available restricted data that may be used for measuring fertility, but the data have not previously been described for a scholarly audience or used for fertility research.

OBJECTIVE
This paper describes and analyzes restricted-use administrative birth data available through the Census Numident for nearly all US births for more than the last century. Within these data, most births since 1997 are linked to parents through the Census Household Composition Key (CHCK). These analyses are designed to illustrate the scope and limitations of these data for the study of US fertility.

METHODS
We describe the creation and content of the Census Numindent and CHCK data sets and compare the data to published US vital statistics. We also analyze the geographic coverage of both data sets and compare the demographic composition of the new data sources to national demographic composition. We further illustrate how these novel data sources may be used by comparing them to survey responses at the individual level.



中文翻译：

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使用人口普查局的行政数据衡量美国的生育率（作者：Katie Genadek、Joshua Sanders、Amanda Stevenson）

背景
可用于研究美国生育率的纵向数据在州一级不具有代表性，限制了对美国生育率的地方差异的分析。美国人口普查局提供可用于衡量生育率的受限数据，但这些数据此前并未向学术受众描述或用于生育率研究。

目的
本文描述并分析了上个世纪以来通过人口普查 Numident 获得的几乎所有美国出生的限制使用的行政出生数据。在这些数据中，自 1997 年以来的大多数出生都通过人口普查家庭构成标准 (CHCK) 与父母联系起来。这些分析旨在说明这些数据用于美国生育率研究的范围和局限性。

方法
我们描述了人口普查 Numindent 和 CHCK 数据集的创建和内容，并将数据与已发布的美国人口动态统计数据进行比较。我们还分析了这两个数据集的地理覆盖范围，并将新数据源的人口构成与国家人口构成进行比较。我们通过将这些新颖的数据源与个人层面的调查回复进行比较，进一步说明如何使用这些新颖的数据源。