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In 2004, of the people younger than 35 who gave birth with the help of IVF, 32.7% delivered twins, and 4.9% delivered triplets, according to doctors at the Washington University School of Medicine ...
The odds of having identical triplets is unclear. News articles and other non-scientific organizations give odds from one in 60,000 to one in 200 million pregnancies ...
Giving birth to triplets, quadruplets or even more has become increasingly less common in the United States. The rate of triplet and higher-order births in the US declined 62% between 1998 and ...
The number of triplets born in the United States has reached a 25-year low, according to new data from the U.S. Centers for Disease Control and Prevention. After experiencing a boom in the 1980s ...
The Hayes also have two sets of twins, Kevin and Kyle (eight years old at the time of the sextuplets' birth) and Kieran and Meghan (five years old). They are the only family in the United States to have two sets of twins and a set of sextuplets. [93] The family was the subject of a reality television show, Table for 12, on TLC in the U.S. [94]
Hellin's law, also called Hellin-Zeleny's law, is an empirical observation in demography that the approximate rate of multiple births is one n-tuple birth per 89 n-1 singleton births: twin births occur about once per 89 singleton births, triplets about once per 89 2, quadruplets about once per 89 3, and so on.
204 sets of twins and 2 sets of triplets born to 2,000 families [1] Velyka Kopanya Ukraine: Europe: 122 twins in a population of 4,000 [2] Igbo-Ora: Nigeria: Africa: 45 to 50 sets of twins per 1000 live births [3] Cândido Godói: Brazil: South America: One in 10 births involves twins [4] Mohammadpur Umri: India: Asia: One in 10 births involves ...
The phenomenon increases a woman's chances of having twins, triplets or quadruplets. "You find that some of the women have the potential of having between 10 to 12 eggs that come at the beginning ...