Natality Detail File, 2006 [United States]

This collection provides information on live births in the United States during calendar year 2006. The natality data in these files are a component of the vital statistics collection effort maintained by the federal government. Birth data is limited to births occurring in the United States to United States residents and nonresidents. Births occurring to United States citizens outside of the United States are not included in this data collection. Part 1 contains data on births occurring within the United States, while Part 2 contains data on births occurring in the United States territories of Puerto Rico, the Virgin Islands, Guam, American Samoa, and the Commonwealth of the Northern Mariana Islands. Beginning in 2005, the United States file no longer includes geographic detail (e.g., mother's state of residence). Geographic variables for the United States Territories file include the territory and county in which the birth occurred and in which the mother resided. Other variables describe the place of delivery, who was in attendance, and medical and health data such as the method of delivery, prenatal care, tobacco and alcohol use during pregnancy, pregnancy history, medical risk factors, and infant health characteristics. Birth and fertility rates and other statistics related to this study can be found in the National Vital Statistics Report in the codebook documentation. Demographic variables include the child's sex and month and year of birth, the parent's age, race, and ethnicity, as well as the mother's marital status, education level, and residency status.

本数据集收录了2006日历年期间美国境内的活产婴儿相关信息。上述文件中的活产统计数据（natality data）是联邦政府维护的生命统计采集项目的组成部分。本数据集所收录的出生数据仅限在美国境内发生的、涉及美国居民与非居民的分娩事件，美国公民在美国境外分娩的情况未被纳入本次数据采集范围。第一部分收录美国本土境内分娩的相关数据，第二部分则涵盖美国海外领地的分娩数据，包括波多黎各、美属维尔京群岛、关岛、美属萨摩亚以及北马里亚纳群岛联邦。自2005年起，美国本土文件不再包含地理细节信息（如产妇的居住州）；而美国海外领地文件的地理变量则涵盖分娩发生地与产妇居住地的领地及县级行政信息。其余变量涉及分娩地点、接生人员，以及分娩方式、产前护理、孕期烟酒摄入情况、妊娠史、医学风险因素与婴儿健康特征等医学与健康相关数据。本次研究相关的出生率、生育率及其他统计数据可参阅代码手册文档中的《全国生命统计报告》（National Vital Statistics Report）。人口统计学变量则包括婴儿性别、出生年月、父母年龄、种族与族裔，以及产妇的婚姻状况、受教育水平与居留身份。