Table 1.

Demographic Characteristics in Women Aged 15 to 44 Years With Live Births in the United States, Overall and in 2007 and 2019

	Overall, N=51 685 525	2007, N=4 302 685	2019, N=3 736 144
Age, y, mean (SD)	28.2 (5.9)	27.4 (6.1)	29.1 (5.7)
Age categories, %
15–19 y	7.4	10.3	4.6
20–24 y	22.4	25.2	18.9
25–29 y	28.7	28.1	28.9
30–34 y	26.0	22.4	29.2
35–39 y	12.8	11.6	15.3
40–44 y	2.8	2.4	3.2
Race and ethnicity, %
Non‐Hispanic White	53.5	53.6	52.2
Non‐Hispanic Black	14.8	14.5	15.4
Asian	6.4	5.6	7.0
Hispanic	23.5	24.6	23.7