The analysis by Connolly, Kimball, and Moulton (1989) mentioned above suggests that female drivers have both a higher overall crash risk and a higher alcohol-related fatal-crash risk. Combined data from FARS and the 1986 National Roadside Breathtesting Survey suggest that the relative fatal-crash risk of a female driver with a BAC of 0.10% or more could be of the order of 50% higher than it is for a male driver at the same BAC. Of course, estimates based on these two unmatched data sets are, as indicated above, are only very rough, but they are consistent with prior case-control studies (see Jones and Joscelyn 1978).
Donovan et al. (1990) examined the driver records of a 1% sample of all licensed drivers in the State of Washington in 1979. They found that, overall, 2.1% of these 39,011 drivers were arrested for DWI during a three-year follow-up period. However, these rates were quite different for male and female drivers, the rate for males being 3.4% compared to only 0.7% for females.
USA = 5,896 cars per fatal accident
17.0 fatal accidents per 100,000 cars
X = fatal accidents per 100,000 cars for men
1.5X = fatal accidents per 100,000 cars for women
0.75 x X + .25 x 1.5X = 17.0
1.125X = 17.0
X = 15.1
1.5X = 22.7
6,622 cars per fatal accident for men
4,412 cars per fatal accident for women
World Health Organization Report