Silver Book Fact
Of the 5.2 million people over age 65 with Alzheimer’s in the United States, 3.4 million are women and 1.8 million are men.
Alzheimer's Association. 2012 Alzheimer’s Disease Facts and Figures. Alzheimers Dement. 2012; 8(2): 131-68. http://www.alzheimersanddementia.com/article/S1552-5260(12)00032-5/fulltext