Who's worse at driving? Men or women?

A new study suggests that women, in fact, may be more dangerous behind the wheel than men.

Researchers at the University of Michigan analyzed 6.5 million car crashes in the U.S. between 1998 and 2007. Female drivers were found to be involved in 68.1 percent of all crashes, according to The Daily Mail.

The results are especially surprising given that men were found to drive 60 percent of the time, while women only 40 percent. In other words, women got in more accidents despite driving less than the opposite sex.

Lead researcher Dr. Michael Sivak said they expected to find that male-to-male crashes would account for 36.2 percent of accidents, female-to-female would make up 15.8 percent and male-to-female would make up 48 percent of collisions.

Instead, analysis showed female-to-female accidents made up 20.5 percent of all crashes, much higher than expected. Male-to-male crashes were lower than expected, at 31.9 percent, while male-to-female crashes were close to their predictions at 47.6 percent.

However, Dr. Sivak refused to go so far as to say he personally believes that women are worse drivers than men.

"The results indicate that in certain crash scenarios, male-to-male crashes tend to be underrepresented and female-to-female crashes tend to be overrepresented," he said.

Women had the most trouble with navigating intersections, the study found. In most accidents, women were "t-boned" on the driver's side while trying to make a left turn, or hit on the passenger side while trying to turn right.

Dr. Sivak said height differences, as women are typically shorter than men, may explain why females have especially high accident rates at intersections.

On the other hand, AOL Autos suggests the data may be a result of gender stereotypes dominating driving behaviors. "Men do most of the driving, and women, who ride along as passengers, are less experienced or confident -- thus prone to wrecks," associate editor Ros Kenneth Urken wrote.

A 2004 study found almost the complete opposite, however. According to The Guardian, Scottish researchers said 94 percent of accidents causing death or bodily harm involved male drivers.

The same study also suggested that because men drive more often, they're more likely to get in accidents. Speeding drivers were found to be twice as likely to get in a car crash, and men were found then to engage in more reckless driving than women.

"There are three dominant driver-related factors," Dr. Sivak said, "including the probability of being at the wrong place at the wrong time, one's own driving skills and the driving skills of the other driver involved."