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Pregnancy blood test could predict due date and preterm risk

Baby in a neonatal care unit in France.
Baby in the neonatal unit of Robert-Debre hospital in Paris, France. Credit: BSIP/UIG via Getty Images

A new blood test may be able to determine the date a baby is due and if it might become a preterm birth, possibly enabling doctors and mothers to take steps to prevent premature births, according to a new study published in Science Thursday.

Why it matters: Premature births have steadily climbed over the past 3 years in the U.S., to affect 15 million babies worldwide each year. According to preliminary tests, the noninvasive blood screening would offer a cheaper and comparably accurate option to ultrasound. In addition, the researchers said it could detect with 75%–80% accuracy if a baby will be born premature.