Natl Vital Stat Rep. 2021 Apr;70(2):1-51.
Objectives-This report presents 2019 data on U.S. births according to a wide variety of characteristics. Trends in fertility patterns and maternal and infant characteristics are described and interpreted. Methods-Descriptive tabulations of data reported on the birth certificates of the 3.75 million births that occurred in 2019 are presented. Data are presented for maternal age, livebirth order, race and Hispanic origin, marital status, tobacco use, prenatal care, source of payment for the delivery, method of delivery, gestational age, birthweight, and plurality. Selected data by mother's state of residence and birth rates by age are also shown. Trend data for 2010 through 2019 are presented for selected items. Trend data by race and Hispanic origin are shown for 2016-2019. Results-A total of 3,747,540 births were registered in the United States in 2019, down 1% from 2018. The general fertility rate declined from 2018 to 58.3 births per 1,000 women aged 15-44 in 2019. The birth rate for females aged 15-19 fell 4% between 2018 and 2019. Birth rates declined for women aged 20-34 and increased for women aged 35-44 for 2018-2019. The total fertility rate declined to 1,706.0 births per 1,000 women in 2019. Birth rates declined for both married and unmarried women from 2018 to 2019. The percentage of women who began prenatal care in the first trimester of pregnancy rose to 77.6% in 2019; the percentage of all women who smoked during pregnancy declined to 6.0%. The cesarean delivery rate decreased to 31.7% in 2019 (Figure 1). Medicaid was the source of payment for 42.1% of all births in 2019. The preterm birth rate rose for the fifth straight year to 10.23% in 2019; the rate of low birthweight was essentially unchanged from 2018 at 8.31%. Twin and triplet and higher-order multiple birth rates both declined in 2019 compared with 2018.
目的-本报告根据多种特征介绍了 2019 年美国出生数据。描述并解释了生育模式和母婴特征的趋势。方法-呈现了 2019 年 375 万例出生的出生证明上报告的数据的描述性表格。数据按母亲年龄、活产顺序、种族和西班牙裔来源、婚姻状况、吸烟情况、产前护理、分娩费用来源、分娩方式、胎龄、出生体重和多胎进行呈现。还显示了按母亲居住地和出生率划分的选定数据。还呈现了 2010 年至 2019 年的趋势数据。显示了 2016 年至 2019 年按种族和西班牙裔来源的趋势数据。结果-2019 年,美国共有 3747540 例出生,比 2018 年下降 1%。一般生育率从 2018 年的每千名 15-44 岁妇女 58.3 例下降到 2019 年的 58.3 例。2018 年至 2019 年,15-19 岁女性的出生率下降了 4%。2018 年至 2019 年,20-34 岁女性的出生率下降,35-44 岁女性的出生率上升。2019 年,每名妇女生育 1706.0 个活产子女的总生育率下降。2018 年至 2019 年,已婚和未婚妇女的出生率均下降。2019 年,有 77.6%的孕妇在怀孕的第一个三个月开始产前护理,怀孕期间吸烟的妇女比例下降到 6.0%。2019 年,剖宫产率下降至 31.7%(图 1)。2019 年,医疗补助是所有分娩费用的 42.1%。早产率连续第五年上升,2019 年达到 10.23%;2018 年,低出生体重率基本保持不变,为 8.31%。2019 年,双胞胎和三胞胎及以上多胎出生率均较 2018 年下降。