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QuickStats: Rate* of Triplet and Other Higher-Order Multiple Births
--- United States, 1980--2003
* Per 100,000 live births.
The rate of triplet and other higher-order multiple births increased substantially, from 37 per 100,000 live births in 1980
to 194 in 1998, a trend largely attributable to increased usage of fertility therapies. During 1999--2003, the rate of triplet
and higher-order multiple births has remained stable. Older mothers and non-Hispanic white mothers are the most likely to have
a triplet or higher-order multiple birth.
SOURCES: Martin JA, Hamilton BE, Sutton PD, Ventura SJ, Menacker F, Munson ML. Births: final data for
2003. National vital statistics reports, vol. 54, no. 2. Hyattsville, MD: National Center for Health Statistics; 2005. Available at
http://www.cdc.gov/nchs/data/nvsr/nvsr54/nvsr54_02.pdf; Reynolds MA, Schieve LA, Martin JA, et al. Trends in multiple
births conceived using assisted reproductive technology, United States, 1997--2000. Pediatrics 2003;111:1159--66.
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