Twins Statistics

Check out your chance to conceive twins or other multiples. According to the statistical data the twins' birth rate increases constantly.
Twins Statistics
According to the statistical data, the birth of twins and other multiples is being increase from year to year. Thus, in the United States in the year 2006, there arrived
  118,916 Twins;
  6,742 Triplets;
  506 Quadruplets;
  77 Quintuplets and other Higher Order Multiples.

That is a 75 percent increase in the number of twins, arrived from 1990.
Moreover, among only 4million deliveries in the United States in 2006, about 3 percent of babies arrived as a twin or higher order multiple, which (although it is not common at all), does mean that twins, triplets, etc. are more common than most people believe they were.
So, how about you? What is your chance to deliver more than one baby at a time? Actually, it is about 3 percent, or, in other words 1 in 33.

There exist several issues, which can increase your chance of delivering more than one baby at a time, they are a woman being more than 30 years old, by the moment she conceives. While you are at the age 25 – 29, your chance to deliver twins is only about 3 percent, but the older you become, the more chance you have: it increases up to 4 percent at 30 – 34 years, and it will almost be 5 percent by the age of 40. You may also deliver several babies at one time, if there is a family history of twins, triplets, etc, most desirable from the mother’s side; or applying fertility treatments, like fertility drugs or In Vitro Fertilization procedure.

Your race or nationality also plays some role in your being able to conceive and deliver twins or more babies at a time, as it is well known, that multiples are more common in African American families, and they are least common in the families of Hispanics and Asians. The amount of your pregnancies may also influence on your chances to deliver twins or more, as this chance increases with each coming pregnancy. Moreover, if you have already delivered one pair of twins, you are more likely to deliver two or more babies at a time again, than other women do.

You should also remember that all the statistical data, mentioned above includes all kinds of deliveries: those, which occurred in the result of fertility treatments as well as those ones, which are considered to be “natural”. Thus, if there is no factor, mentioned above, which fits you, your chance to conceive and deliver more than one baby at a time is a little bit less than 3 percent, while the chance to have “natural” fraternal twins is yet less, only about 1.7 percent, or 1 in 60. In case if your pregnancy is the result of any kind of fertility treatment (either fertility drugs or In Vitro Fertilizaton), your chances to deliver several babies rise up to 20 – 25 percent.

Out of all multiple deliveries, the rate of fraternal twins’ arrival has been constantly increasing, and it makes sense, because the chance of conceiving and delivering fraternal twins or other multiples is influenced by two factors: an advanced maternal age and the fertility treatments application. While this, the chance of identical twins, triplets, etc. conceiving and delivering remains stable, it is about 0.4 percent, which makes 1 in 250.
 Now, how about those women, who deliver two sets of identical twins? The chance of a woman to conceive and deliver “natural” quadruplets, which are made up of two sets of identical twins is considered to be as high as 1 in 25 – 36,000,000. However, in reality it is probably much lower, as in the past 10 years, among more than 32,000,000 deliveries in the United States, there arrived no more than four sets of identical twin quadruplets, for the rate of about one in 8,000,000.

 Some other statistical data:
• Your chance to conceive and deliver conjoined twins is about 1 in 50 – 80,000;
• Your chance to conceive and deliver “natural” triplets is about 1 in 8,100 (it is considered, that only about 30percent of triplets are “natural”);
• Your chance to conceive and deliver “natural” quadruplets is about 1 in 729,000 (it is considered, that only about 6 percent of quadruplets are “natural”);
• Your chance to conceive and deliver “natural” quintuplets is only about 1 in 55,000,000.