Utah babies are more likely to be born with Down syndrome than in nine other states studied by the federal government.
The study, published online today in the American Academy of Pediatrics' journal Pediatrics , showed one in 730 babies born in Utah had the genetic disorder, compared with one in 848 among the 10 states studied.
The study didn't explore why. But a Utah expert on birth defects says it's likely because of Utah mothers' ages and attitudes.
Many continue to have children into their late 30s and 40s, which increases the risk of the chromosomal disorder, said Lorenzo Botto, a medical epidemiologist at the Utah Birth Defect Network, which provided data for the study.
And Utah women are less likely to have abortions once the condition has been detected prenatally, he added.
The higher prevalence is "not because there is something wrong with Utah," he said in an e-mail, "but is basically a function of family choices."
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