There is a Society Factsheet that discusses risk factors and the section marked Gender does indicate risks for both AD and VaD differ between men and women:
It would also be interesting to know the ages of these residents to understand if, as women are supposed to live longer than men, the average age of the 70% women is higher than the average age of the 30% men.
yes I think that seems to make sense. The men simply don't live as long, and that certainly seems true of those diagnosed before age 65, the young onset people.