Tags: stillbirth | weight | baby

Smallest, Largest Babies at Most Risk

Wednesday, 27 Jun 2012 11:23 AM


The smallest and largest babies are at much higher risk of being stillborn than those of average weight, new research has found.
Fetuses smaller than 99 percent of others for their age account for about six percent of all stillbirths, according to researchers at St. Michael's Hospital in Ontario, Canada. In addition, those that weigh more than 99 percent of others for their age account for nearly one percent of stillbirths.
"In this study of all registered liveborn and stillborn infants in Ontario, extreme underweight and overweight states confer the highest risk of stillbirth," said Drs. Joel Ray and Marcelo Urquia, who led the study published in the Journal of Perinatology.
Stillbirth is defined as the death of a fetus at more than 23 weeks of gestation. About six of every 1,000 births are stillbirths in industrialized nations like the U.S. and Canada.
For the new study, the Canadian researchers examined records of 767,016 live births and all 4,697 stillbirths in Ontario between 2002 and 2007. They found that 19 percent of stillbirths occurred in fetuses under the tenth percentile of weight and those below the first percentile of weight had a 9.5 times higher risk of being stillborn than average-weight babies.


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Babies of average weight have dramatically lower risks of being stillborn, a new study finds.
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2012-23-27
Wednesday, 27 Jun 2012 11:23 AM
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