The Centers for Disease Control and Prevention in Atlanta conducted an analysis of trends in diagnoses of HIV/AIDS among men who have sex with men in the 33 states that have had confidential, name-based HIV case reporting since at least 2001.

From 2001-06, an estimated 214,379 people had HIV/AIDS diagnosed in the 33 states. Of these diagnoses, 46 percent were in men who have sex with men and 4 percent were in men who have sex with men who engaged in illicit injection-drug use, the Morbidity and Mortality Weekly Report said.

Among males, men who have sex with men accounted for 97,577, or 63 percent of cases. Men ages 25 to 44 years accounted for 64 percent of cases among men who have sex with men. From 2001-06, a 12.40percent increase in the number of HIV/AIDS diagnoses among all black men who have sex with men was observed; however, an increase of 93.1 percent was observed among black men who have sex with men ages 13 to 24 years.