Assertion: c section | /r/HasProperty | rate
Facets:
Source sentences:
text: In the United States, however, about one in three births happen by C-section, a rate that has risen dramatically over the past few decades, from 5 percent in 1970 and 20 percent in 1996.
text: Nationally, one in every three American women delivers her baby via C-section, a rate that has increased more than 500 percent since the 1970s, making it the most common surgery performed in the United States.