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 . Transportation Secretary Ray LaHood discusses the study at a news conference Wednesday . `` To be honest with you , I was certainly surprised about that statistic , '' Transportation Secretary Ray LaHood said at a news conference . However , when it comes to drunken driving arrests , women continue to be outnumbered by men by four to one . Laura Dean-Moody , president of Mothers Against Drunk Driving , said that `` 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 . The numbers were compiled from national law enforcement records covering 1998-2007 . Moody said the report does not explain why women are increasingly driving while impaired but speculated , `` Women are under more pressure . They 're now perhaps the breadwinner with the unemployment rate . '' She also added that `` TV shows have made it look hip or cool to be a mom that stays home and drinks . '' The findings were part of the launch of a Labor Day law enforcement campaign called `` Over the Limit , Under Arrest . '' Describing what 's intended to be a nationwide effort , Fairfax County , Virginia , police Capt . Susan Culin said , `` we 'll be making more traffic stops , writing more tickets , conducting more sobriety checkpoints and DUI saturation patrols , and we 'll be arresting any driver we determine to be impaired . '' Moody , whose husband was killed in 1991 by a drunken driver , cited statistics suggesting that 2 million drivers with multiple alcohol convictions will be on the road during the Labor Day holiday . Criticizing a court system that has allowed such drivers to keep their licenses , Moody said , `` these are people who have proven not once , not twice but three times that they are not worthy of the public 's trust when it comes to operating a vehicle . ''
Arrests of women driving drunk increased 30 percent from 2005 to 2007 . Fewer men were arrested for such crimes , though they still outnumber women . Mothers Against Drunk Driving president speculates about increased arrests . Law enforcement shut down over Labor Day weekend .