Approximately 18.0 million or 8.7 percent of all people age 20 years or older have diabetes ; 8.6 million or 18.3 percent of all people age 60 and older ; 8.7 million or 8.7 percent of all men ; and 9.3 million or 8.7 percent of all women have diabetes , and 5.2 million people are undiagnosed . . .