"Persons age 12 or older who had disabilities experienced an annual average of about 923,000 nonfatal violent crimes during a 2-year period from 2010 to 2011. Nonfatal violent crimes include rape, sexual assault, robbery, aggravated assault, and simple assault. No statistically significant difference was found in the average annual number of nonfatal violent victimizations against persons with disabilities from 2010 to 2011. The findings in this report are based on the Bureau of Justice Statistics' (BJS) National Crime Victimization Survey (NCVS), a household survey that collects data on U.S. residents age 12 or older (excluding those living in institutions). The NCVS defines disability as a sensory, physical, mental, or emotional condition lasting 6 months or longer and causing difficulty in activities of daily living. Disabilities are classified according to six limitations: hearing, vision, cognitive, ambulatory, self-care, and independent living."
The Bureau of Justice Statistics: http://www.bjs.gov/