Births - Centers for Disease Control and Prevention

Jan 5, 2017 - 18.1 39.2 60.4. –54. –70. 11.7 24.2 36.9. –52. –68 ... 39.2 91.0 122.2. –57. –68. Illinois . .... 11.6 21.0 39.2. –45. –70. 11.6 21.5 39.7. –46. –71.
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National Vital Statistics Reports Volume 66, Number 1

January 5, 2017

Births: Final Data for 2015 by Joyce A. Martin, M.P.H.; Brady E. Hamilton, Ph.D.; Michelle J.K. Osterman, M.H.S.; Anne K. Driscoll, Ph.D.; and T.J. Mathews, M.S., Division of Vital Statistics

Abstract Objectives—This report presents 2015 data on U.S. births according to a wide variety of characteristics. Data are presented for maternal age, live-birth order, race and Hispanic origin, marital status, attendant at birth, method of delivery, period of gestation, birthweight, and plurality. Selected data by mother's state of residence and birth rates by age and race of father also are shown. 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 3.98 million births that occurred in 2015 are presented. Results—In 2015, 3,978,497 births were registered in the United States, down less than 1% from 2014. The general fertility rate was 62.5 per 1,000 women aged 15–44, a decline of 1% from 2014. The birth rate for teenagers aged 15–19 fell 8% in 2015, to 22.3 per 1,000 females. Birth rates declined for women in their 20s but increased for women in their 30s and early 40s. The total fertility rate (estimated number of births over a woman’s lifetime)

60

2009

2014

2015

Preterm 49.8 50.4 50.3

50

Early term

40 Percent

36.1 36.5 36.6 32.9

32.2

Full term

34.7

33.9

32.0

30

36.1 35.7 Late term

28.9 28.6

26.4 22.7 20

0

Total

Under 37

37

38

39

20.6 20.2

40

Gestational age (weeks) NOTE: Gestational age is based on the obstetric estimate of gestation. SOURCE: NCHS, National Vital Statistics System.

Figure 1. Cesarean delivery, by gestational age: 2009, 2014, and 2015 U.S. DEPARTMENT OF HEALTH AND HUMAN SERVICES Centers for Disease Control and Prevention National Center for Health Statistics National Vital Statistics System

24.8 24.3

41

2

National Vital Statistics Reports, Vol. 66, No. 1, January 5, 2017

declined to 1,843.5 births per 1,000 women in 2015. The birth rate for unmarried women declined for the seventh straight year to 43.5 per 1,000. The cesarean delivery rate declined for the third year in a row to 32.0%. The preterm birth rate increased slightly from 2014, to 9.63% in 2015, as did the rate of low birthweight (8.07% in 2015). The twin birth rate declined to 33.5 per 1,000; the triplet and higher-order multiple birth rate was down 9% to 103.6 per 100,000. Keywords: birth certificate • maternal and infant health • birth rates • maternal characteristics

Highlights ●

















A total of 3,978,497 births were registered in the United States in 2015, down less than 1% from 2014. The number of births declined for non-Hispanic white and Hispanic women and was essentially unchanged for non-Hispanic black women from 2014 to 2015. The general fertility rate declined 1% in 2015, to 62.5 births per 1,000 women aged 15–44 from 62.9 in 2014. The total fertility rate also declined in 2015, to 1,843.5 births per 1,000 women. The birth rate for teenagers aged 15–19 declined 8% in 2015, to 22.3 births per 1,000 females aged 15–19, another record low for the nation; rates declined for teenagers in all race and Hispanic-origin groups. Birth rates also declined to a record low for women in their early 20s in 2015. Rates declined for women in their late 20s but rose for women in their 30s and early 40s from 2014 to 2015; the rate for women in their late