Risk of Preterm Labor in Multiple Pregnancies

Pregnancy Risk of Preterm Labor
Singleton10%
Twin50%
Triplet90%
Quad100%
Source: Luke, Barbara and Eberlein, Tamara, When You're Expecting Twins, Triplets or Quads, New York: HarperPerennial, 1999.
* These are general rates that may vary if you have more risk factors.
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