By Paul Courson
WASHINGTON (CNN) -- Arrests for women driving under the influence jumped by nearly 30 percent during the decade ending in 2007, according to a study released Wednesday by the U.S. Transportation Department.
"To be honest with you, I was certainly surprised about that statistic," said Transportation Secretary Ray LaHood at a news conference.
However, women continue to be outnumbered by men by four to one.
Laura Dean-Moody, president of Mothers Against Drunk Driving, told reporters "Women are unfortunately picking up some of the same terrible, reckless behaviors that men have exhibited."
The report, authored by the FBI for the National Highway Traffic Safety Administration, found a declining number of men arrested for similar alcohol-related violations.