Why would Caesarean birth rates vary from as little as 7 percent at some U.S. hospitals to 70 percent at others? That's the question raised by a University of Minnesota study released Monday, which found that C-section rates vary tenfold across the country. The study is one of the largest of its kind to suggest that some C-sections are being performed for questionable reasons—inflating health costs and putting women and their babies at unnecessary risk.
