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Article: Birth facts.
- Article from:
- Pediatrics for Parents
- Article date:
- March 1, 1990
CopyrightCOPYRIGHT 1990 Pediatrics for Parents, Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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For every 1,000 female births there are 1,051 male births.
These proportions are consistent from year to year.
In the U.S. one set of identical twins are born for every 250 births.
Of the 79,027 multiple births in 1985, 97.6% were twins.
The chance of having quintuplets is less than one in 5,000.
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