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A multiple birth is the culmination of one multiple pregnancy, wherein the mother gives birth to two or more babies. A term most applicable to vertebrate species, multiple births occur in most kinds of mammals , with varying frequencies.
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.
Triplet and higher multiple births nosedive. 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 ...
This is a list of multiple births, consisting of notable higher order (4+) multiple births and pregnancies. Twins and triplets are sufficiently common to have their own separate articles. With the use of reproductive technology such as fertility drugs and in vitro fertilization (IVF) such births have become increasingly common. This list ...
A multiple pregnancy (e.g., twins, triplets, etc.) is counted as 1. Parity, or "para", indicates the number of births (including live births and stillbirths) where pregnancies reached viable gestational age. A multiple pregnancy (e.g., twins, triplets, etc.) carried to viable gestational age is still counted as 1. [3]
The number of births in the U.S. fell to 3,591,328 in 2023 from 3,667,758 the year prior, according to provisional National Centers for Health Statistics (NCHS) data from the U.S. Centers for ...
Twin Birth Rate Kodinhi: India: Asia: 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 ...
Six boys and two girls were born recently at ProMedica Monroe Regional Hospital. Several couples applied for marriage licenses.