The annual HIV diagnosis rate in the U.S. decreased 33% between 2002 and 2011, to 16.1 per 100,000 people, according to a study published July 23 in the Journal of the American Medical Association, a theme issue on HIV/AIDS.
The largest declines were observed in people of multiple races (57%), aged 35-44 (50%) and women (49%). More than 493,000 U.S. cases were diagnosed over the 10-year period, including a 133% increase in diagnoses among males aged 13-24 attributed to male-to-male sexual contact.
The findings are based on data from the Centers for Disease Control and Prevention’s National HIV Surveillance System.
“Accurate HIV diagnosis data recently became available for all states, allowing for the first time an examination of long-term national trends,” the authors said. “These data can be used to monitor awareness of serostatus among persons living with HIV, primary prevention efforts and testing initiatives.”
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