File:USA triplet birth rate.jpg

Triplet and Higher birth rates for mothers 25 years of age and older: United States, 1980, 1990, 1998, and 2006

Links NVSR USA Births 2006: Cesarean rate by gestational age | Live births and fertility rates | Mean age mother first birth by state | Change distribution births by gestational age | Percentage low birthweight by maternal age | Triplet birth rate | Reference | Birth | National Vital Statistics Reports

The rate of triplet and higher order multiple births (triplet/+) declined 5 percent in 2006, to 153.3 per 100,000 total births, from 161.8 in 2005. The triplet/+ rate (the number of triplets, quadruplets, and quintuplets and other higher order multiples per 100,000 live births) climbed more than 400 per­ cent during the 1980s and 1990s, but has declined 21 percent since the all-time high in 1998 (193.5). Declines of 20 to 30 percent are observed in triplet/+ birth rates for women in age groups 25 years and over since 1998; see Figure 10.

Links: Twinning | USA Statistics

SOURCE: CDC/NCHS, National Vital Statistics System. Figure 10.

NOTE: Singleton births only.

Martin JA, Hamilton BE, Sutton PD, Ventura SJ, et al. Births: Final data for 2006. National vital statistics reports; vol 57 no 7. Hyattsville, MD: National Center for Health Statistics. 2009.

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