how many people are disadvantaged in the world today?

Question

whats the number of blind,crippled,deaf and mentally retarded people

Answer 1

Here are two links that might be useful but really its hard to know the exact number as many places are unreachable for taking stats.

I found the number of visually impaired in WHO website but its old.

http://www.who.int/whosis/en/
http://www.globalhealth.gov/worldhealthstatistics.shtml

Answer 2

Just check the membership of the republican party. The number will be very close!!