title: Declines in Triplet and Higher-order Multiple Births in the United States, 1998-2014.
abstract: Data from the National Vital Statistics System •The triplet and higher-order birth rate declined 41% from 1998 to 2014, or from about 1 in every 515 births in 1998 to one in every 880 births in 2014. •Triplet and higher-order birth rates were down by about 50% or more for women aged 25 and over. Rates were essentially unchanged for women under 25. •The largest declines in triplet and higher-order birth rates by race and Hispanic origin for 1998-2014 were for non-Hispanic white women, down 46% compared with a 15% decline for Hispanic women, and essentially no change for non-Hispanic black women. •Triplet and higher-order birth rates were down from 1998-2000 to 2012-2014 in 42 states; declines of more than 50% were observed in 7 states.
authors.forename: Joyce A
authors.initials: JA
authors.lastname: Martin
authors.forename: Michelle J K
authors.initials: MJ
authors.lastname: Osterman
authors.forename: Marie E
authors.initials: ME
authors.lastname: Thoma
mesh_terms: D000328:Adult; D001741:Black or African American; D017677:Age Distribution; D005260:Female; D006630:Hispanic or Latino; D006801:Humans; D008875:Middle Aged; D009099:Multiple Birth Offspring / Q000706:statistics & numerical data*; D014481:United States / Q000453:epidemiology; D044465:White People