Boys More Likely to Be Premature

Boys are slightly more likely to be born premature than girls, and they tend to fare worse, too, says a new report on the health of the world's newborns.

A baby in the NICU.

"This is a double whammy for boys," said Dr. Joy Lawn of the London School of Hygiene & Tropical Medicine, who led the team of researchers. "It's a pattern that happens all over the world."