I didn't see numbers for the A model, and it does depend how they count "female" crews.
The 10% was for all aircrew.
If you assume Apache As and Ds have the same male/female ratio, then you can use 81 injury accidents in the numbers, but there are only 3.8% female Apache crew, not 10%, which makes (at random) about 8% Apache crews with a female crewmember.
However, the rate is for injuries, so you should be counting heads, not crews.
That is getting more significant, but it's still at the (3.8/100)*85 ~ 3.2 level, where Poisson helps to make it less than significant with these small numbers at present.
I suspect what's happening is that there's a higher threshold of performance required for women to make it onto Apaches - reflecting the factor of 3 fewer women on Apaches than flying elsewhere in the Army. Thus that female Apache pilots are just on average "better". I wonder what the accident statistics are for the "best" third of male Apache pilots?
Last edited by awblain; 18th Feb 2014 at 15:38.