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. Author manuscript; available in PMC: 2020 Mar 28.
Published in final edited form as: Vaccine. 2019 Feb 27;37(14):1972–1977. doi: 10.1016/j.vaccine.2019.02.042

Table 1.

Characteristics of pregnant women 15–49 years —Marketscan, 2009–2016

2009 2010 2011 2012 2013 2014 2015 2016
n % n % n % n % n % n % n % n %
Total 113,956 100.0 114,579 100.0 144,788 100.0 175,648 100.0 143,736 100.0 156,244 100.0 120,086 100.0 130,129 100.0
Age (years)
 15–18 3,380 3.0 2,990 2.6 3,380 2.3 3,781 2.2 2,528 1.8 2,282 1.5 1,476 1.2 1,357 1.0
 19–34 88,649 77.8 89,492 78.1 112,801 77.9 138,125 78.6 113,095 78.7 122,385 78.3 93,836 78.1 9,921 76.8
 35–49 21,927 19.2 22,097 19.3 28,607 19.8 33,742 19.2 28,113 19.6 31,577 20.2 24,774 20.6 28,851 22.2
Residence in Metropolitan Statistical Area
 No 16,428 14.4 14,854 13.0 20,892 14.4 25,728 14.6 20,181 14.0 20,626 13.2 13,135 10.9 13,851 10.6
 Yes 97,528 85.6 99,725 87.0 123,896 85.6 149,920 85.4 123,555 86.0 135,618 86.8 106,951 89.1 116,278 89.4
Region of policyholder residence
 Northeast 9,326 8.2 14,610 12.8 22,307 15.4 31,136 17.7 24,563 17.1 28,936 18.5 21,365 17.8 21,201 16.3
 North Central 30,173 26.5 30,073 26.2 36,782 25.4 43,737 24.9 32,976 22.9 35,522 22.7 24,059 20.0 26,794 20.6
 South 57,168 50.2 51,137 44.6 55,085 38.0 64,411 36.7 48,915 34.0 55,264 35.4 53,013 44.1 59,586 45.8
 West 17,106 15.0 18,649 16.3 26,810 18.5 32,314 18.4 33,652 23.4 32,115 20.6 21,245 17.7 22,459 17.3
 Unknown 183 0.2 110 0.1 3,804 2.6 4,050 2.3 3,630 2.5 4,407 2.8 404 0.3 89 0.1
Partially/fully capitated insurance plan
 No 96,574 84.7 98,448 85.9 124,478 86.0 154,992 88.2 124,257 86.4 138,808 88.8 106,834 89.0 116,821 89.8
 Yes 17,382 15.3 16,131 14.1 20,310 14.0 20,656 11.8 19,479 13.6 17,436 11.2 13,252 11.0 13,308 10.2