I was surprised to hear that figure! I did my own research and it appears to be correct (in fact, it's greater than 2x in recent years). However, that ratio ignores vehicle miles driven. Once you account for that, the comparative ratio is slightly lower:
> The number of driver fatal crash involvements per 100 million miles driven in 2017 was 62 percent higher for males (2.1 per 100 million miles traveled) than for females (1.3 per 100 million miles traveled). Rates were substantially higher for males than for females ages 16-29, but were only slightly higher for ages 30 and older. The gender difference was largest among drivers ages 20-29.
So in some sense the real figure is 1.62x for men as women per mile driven, although (1) men driving more miles is still a real thing and as a result more men die, and (2) I don't know to what extent super-distance drivers (like commercial truck drivers, who skew heavily male) are putting their finger on the scale.
If you ignore teenagers, that difference comes out to 1.59x; and leaving out persons <30, 1.46x. Still much higher than 1.0.
